Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

Appendix A Element 2 (Organization) Supporting Documents

Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

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RICHARDSON BAY SANITARY DISTRICT 500 Tiburon Blvd., Tiburon, CA 94920 District Phone: (415)388-1345 District Fax: (415)388-1339 E-Mail: [email protected] April 2019

DIRECTORS: SUE BENVENUTI 408 Hilary Dr. 415-435-4242 Tiburon, CA 94920 [email protected]

DAVID EKLUND 666 Hilary Drive 415-435-2279 Tiburon, CA 94920 [email protected]

RON KOSCIUSKO 402 Hilary Drive 415-435-0650 Tiburon, CA 94920 [email protected]

JEFF SLAVITZ 45 Upper North Terrace 415-310-2410 Tiburon, CA 94920 [email protected]

FRANK TRUSHEIM 42 Reed Ranch Road 415-960-4833 Tiburon, CA 94920 [email protected]

EMPLOYEES: JOHNNY TUCKER 4401 Daywalt Road 707-827-3271 (Home) District Manager Sebastopol, CA 94472 415-261-8810 (Mobile) 415-716-6746 (Verizon)

KEN OLUFS 500 Monte Vista Lane 707-762-8414 (Home) Collections Syst. Operator Petaluma, CA 94952 415-716-7461 (Verizon) 707-486-4694 (Mobile)

TREVOR SEIDLER 6540 Bloomfield Road 415-574-5786 (Home) Collections Syst. Operator Petaluma, CA 94952 415-710-0369 (Verizon)

PAULA PFEFFER 49 Bryn Mawr Drive 415-460-1004 (Home) Office Manager San Rafael, CA 94901 415-378-8139 (Mobile)

ON-CALL OPERATOR 415-710-0819 (Verizon)

OTHER: PETER BREKHUS Law Office of Peter Brekhus 415-461-1001 District Counsel 1000 Drakes Landing Rd. 415-461-7356 (Fax) Greenbrae, CA 94904

PIPPIN CAVAGNARO Nute Engineering 415-453-4480 District Engineer 907 Mission Avenue 415-453-0343 (Fax) San Rafael, CA 94901

DAVE PEROTTI Perotti & Carrade 415-461-8500 District CPA 1100 Larkspur Landing Cir. #358415-461-6342 (Fax) Larkspur, CA 94912

ROTO ROOTER Roto Rooter 415-388-2740 P.O. Box 3415 415-898-6074 San Rafael, CA 94912

GREAT WEST LIFE 121 Deerwood Rd., Ste. 356 925-855-1095 Deferred Comp San Ramon, CA 94583 800-274-8491 Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

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Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

Appendix B Element 3 (Legal Authority) Supporting Documents

Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

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RICHARDSON BAY SAN~TARY DISTRICT MARIN COUNTY, CALIFORNIA

DISTRICT OFFICE 599 TIBURON BOULEVARD TIBURON, CALIFORNIA 94929 TELEPHONE: ( 415) 388'-l345 I. SEWER USE CODE I. ,. SANITARY BOARD

FRANK BUCHANAN l: FORREST MORPHEW JOHN RADOVICH EDWARD SOTELO LEON WILLAT I:

[. SUPERINTENDENT

FRANK T . DI'PTLE Jr. [ : I. ENGINEER NOTE ENGINEERING GARY E. ROBARDS I. LEGAL COUNSEL l. WILSON MORTON & ADAMS SHERROD S. DAVIS

ADOPTED BY ORDINANCE NO. 58, December 15, 1987 AMENDED BY ORDINANCE NO. 64, September 19, 1989 SEWER USE CODE OF RICHARDSON BAY SANITARY DISTRICT

ARTICLE I

GENERAL PROVISIONS

Sec. 101 Rules and Regulations. The following rules and regulations govern

sewer construction, the disposal of sewage and drainage from I' buildings, and the connection to the sewerage works of the Dis- I I trict, and all work in respect thereto shall be performed as r' I. herein required.

Sec. 102. Purpose. This code contains the rules and regulations for the

use and construction of sanitary sewerage facilities hereafter

installed, altered or repaired within the District.

Sec. 103. Title. This code shall be cited and referred to as the RICHARD-

SON BAY SANITARY DISTRICT SEWER USE CODE or RBSD SEWER USE CODE.

Sec. 104. Continuation of Existing Law. The provisions of this code inso-

1 . far as they are substantially the same as existing regulations

relating to the same subject matter shall be construed as re- 'I. statements and continuations, and not as new enactments.

Sec. 105. Pending Proceedings. Any action of proceeding commenced before I. this code takes effect and any right accrued is not affected by I. this code, but all procedures thereafter taken therein shall

conform to the provisions of this code. Sec. 106. Acts £l Deputy. Whenever a power is granted to or a duty is imposed upon a public officer, the power may be exercised, or the

duty may be performed by a deputy of such officer or by a person

otherwise duly authorized pursuant to law or ordinance unless

this code expressly provides otherwise.

I •

1 Sec. 107. Tense. The present tense includes the past and future tenses;

and the future, the present. ' Sec. 108. Gender. The masculine gender includes the feminine and neuter.

Sec. 109. Giving Notice. Whenever a notice is required to be given

I' under this code, unless different provisions herein are otherwise

specifically made in said code, such notice may be given either

by personal delivery thereof to the person to be notified or by I' deposit in the United States Mail, in a sealed envelope postage I' prepaid, addressed to such person to be notified, at his last

known business or residence address as the same appears in the

public records of the district or other records pertaining to the

matter to which such notice is directed. Service by mail shall

be deemed to have been comple ted at the time of deposit in the

post office.

Sec. 110. Reference Applies to Amendments. Whenever a reference is made to

any portion of this code, to any ordinance of this District or to

I. any state code or statute, said reference shall be to such code,

I ordinance or statute as now or hereafter amended, unless herein I. otherwise provided.

Sec. 111. Violation Unlawful. Following the effective date of this code, it

shall be unlawful for any person to connect to, construct, install

r: or provide, maintain and use any other means of sewage disposal t: from any building in said District except by connection to a public sewer in the manner as in this code provided unless other-

wise permitted in writing by the Sanitary Board.

Sec. 112. Relief ~Application. When any person by reason of special cir- 1. cumstances, is of the opinion that any provision of this code is

I •

2 unjust or inequitable as applied to his premises, he may make

written application to the Board, stating the special circum- ' stances, citing the provision complained of, and requesting sus- r, pension or modification of that provision as applied to his prem- ises. If such application be approved, the Board may, by resolu-

Ir tion, suspend or modify the provision complained of, as applied to such premises, to be effective as of the date of the application { I

I' and continuing during the period of the special circumstances.

~ ~ ec. 113. Relief~ Own Motion. The Board may, on its own motion, find that by reason of special circumstances any provision of this code

should be suspended or modified as applied to a particular premise

and may, by resolution, order such suspension or modification for

such premises during the period of such special circumstances, or

I' any part thereof. Sec. 114. Permits and Fees. No sewer of any kind or other sewerage facility J. shall be constructed, installed, altered or repaired within the District until a permit for the work has been obtained from the f • I. District and all fees and charges have been paid in accordanc e with the requirements of this code and all other applicable Dis- l : trict ordinances, resolutions and regulations.

ARTICLE II l: DEFINITIONS

>ec. 201. District shall mean the Richardson Bay Sanitary District, Marin

County, California. l Jec. 202. County shall mean the County of Marin, California. I>ec. 203. Board shall mean the Sanitary Board of said District. Sec. 294. District Engineer shall mean the engineer appointed by and acting

I I .

3 for the Board, and shall be a registered civil engineer.

Sec. 295. District Inspector shall mean the inspector acting for the Board

and may be the Superintendent, the District Engineer, or any

qualified person appointed by the Board.

ec. 296. Permit shall mean any written authorization required pursuant to

, I this or any other regulation of District for the installation l. and/or alteration of any sewerage works.

ec. 297. Building shall mean any structure used for human habitation, re-

creation, as a place of business, or other similar purpose which

contains sanitary sewer facilities.

~. ec. 298. Applicant shall mean the person or entity making application for a l permit for a sewer connection and shall be the owner of premises to be served or an authorized agent.

I Sec. 209. Contractor shall mean an individual, firm, corporation, partner-

ship or association duly licensed by the State of California to

perform the type of work to be done under a permit.

1J ec. 219. Single Family Dwelling shall mean a building designed for occupa-

( .. tion by a single family. . Sec. 211. Multiple Dwelling Unit shall mean a building consisting of "two or

more" dwelling units, each of which is designed for occupation by

a single family, and including, but not limited to apartment

buildings, duplexes, hotels, mot~ls, lodges, boatels.

,~ec. 212. Dormitory shall mean a building or buildings designed and/ or used for the overnight housing of several persons who share one or I. several sets of bathrooms and/or kitchen facilities, including, but not limited to dormitories, rooming houses, rest homes,

boarding houses, hospitals.

I •

I • 4 I • Sec. 213. Non-Residential Establishment shall mean an establishment that

contains one or more plumbing fixtures and that is not specifical­ " ly designed or used to accommodate overnight occupancy, including,

'. but not limited to meeting halls, churches, schools, restaurants, theaters, gas stations, shops, stores and professional buildings.

' Sec. 214. Street shall mean any public highway, road, street, avenue, alley,

way, public place, public easement or right-of-way.

Sec. 215. Sewerage Works shall mean all facilities for collecting, pumping, treating and disposing of sewage.

Sec. 216. Sewage shall mean a combination of water-carried wastes from resi- ,. dences, business buildings, institutions and industrial establish- ments.

Se c. 217. Sewer shall mean a pipe or conduit installed for the purpose of

carrying sewage.

Sec. 218. Public Sewer shall mean a sanitary sewer controlled by the

District, which has been accepted by the District Board for maint-

enance, and which has become part of the District's sewerage

works.

Sec. 219. Building Sewer shall mean that portion of any sewer beginning at

the plumbing or drainage outlet of any building and connecting

with a public sewer, private sewer or an individual sewage f. disposal system. I Sec. 220. Private Sewer shall mean a building sewer which receives the discharge from more than one (1) building sewer and conveys it to

a public sewer or a private disposal system.

. Sec. 221. Main Sewer shall mean a public sewer or a private sewer which col­ ! lects sewage from two or more building sewers.

Sec. 222. Plumbing System shall mean all plumbing fixtures and traps or

5 soil, waste, special waste and vent pipes, and all sanitary sewer

pipes within a building and extending to the building sewer

connection three (3) feet outside the building wall.

Sec. 223. Sewage Treatment Plant shall mean any arrangement of devices and

structures used for treating sewage.

Sec. 224. Plumbing Fixtures shall mean fixtures that discharge water or

I' sewage into the sanitary sewer. Sec. 225. Additional Definitions. For the purpose of this code, additional I. terms shall have the meaning indicated in Chapter 1 of the latest edition of that certain plumbing code entitled, "Uniform Plumbing 1: Code," adopted by the International Association of Plumbing and Mechanical Officials (IAPMO).

I. ARTICLE I II

I. USE OF PUBLIC SEWERS REQUIRED

Sec. 301. Disposal of Wastes. It shall be unlawful for any person to place, J. .,.,/" deposit, or permit to be deposited in an unsanitary manner upon public any area I . -- or private property within the District, or in I. under the jurisdiction of said District, any human or animal

I, excrement, garbage, or other objectionable waste. Sec. 302. Treatment of Wastes Reguired. It shall be unlawful to discharge I. to any stream or watercourse any sewage, industrial wastes, or other polluted waters, except where suitable treatment has been provided in accordance with provisions of this code.

~ec. 393. Unlawful Disposal. Except as herein provided, it shall be unlaw- l - ful to construct or maintain any privy, privy vault, septic tank, I. cesspool, seepage pit or other facility intended or used for the disposal of sewage. I.

6 ------sec. 394. Occupancy Prohibited . No building, industrial facility or other

structure shall be occupied until the owner of the premises has

complied with all rules and regulations of the District.

Sec. 395. Sewer Required. The owner of any building situated in the Dis­

trict which contains a plumbing system and whose property abuts on 1 r I, any street in which there is now located or may in the future be

I r located a public sewer of the District is hereby required at his I. expense to connect said building directly with the proper public I: sewer in accordance with the provisions of this code and Marin County health requirements within thirty (39) days after date r : of notice in writing by the District to do so, provided that said public sewer is within four hundred (490) feet horizontal measure-

1: ment of the nearest point of the property. When in the judgment L of the Board, special conditions so require, an owner may be required to connect his building although said public sewer lies L farther than four hundred (490) feet from the property. ARTICLE IV

I: - INDIVIDUAL SEWAGE DISPOSAL

Sec. 401. Sewer Not Available. Where a public sewer is not available, the . building may be connected to an individual sewage disposal system I in compliance with the provisions of this code. Sec. 402. Application for Individual sewage Disposal Construction. Before f. commencement of construction of an individual sewage disposal

[~ system, the owner shall first make application for construction

and operation of such a system both to the Health Department of r: Marin County, and to the District . One copy of the application shall be directed to the Health Department of Marin County,

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7 another to the District . Upon notification to the District by the

Health Department of Marin County of its approval of the applica- ' tion, the District shall then make final disposition of the appli-

I' cation and issue a permit for connection to an individual sewage disposal system. The District shall act upon the request as soon

I, as reasonably possible after receipt of the District copy of the

application, and the County Health Department's approval of said r. application . The application to the District shall be accompanied I. by a fee of $100.00 and complete plans of the proposed installa- r : tion. In addition, the owner shall bear all costs to the District

I. regarding the application.

Sec. 403 . Inspection Required. A permit for an individual sewage disposal I. system shall not become effective until the installation is completed to the satisfaction of the District Inspector. He shall

be allowed to inspect the work at any stage of construction and,

in any event, the applicant shall notify the District when the I . work is ready for final inspection, and before any underground portions are covered. Such notice shall be given not less than

twenty four (24) hours before the work is to be inspected, Satur-

days, Sundays and holidays excluded.

1 Sec. 404. Design Requirements. The type, capacities, locations and layout I • of an individual sewage disposal system shall comply with all re-

quirements of the Uniform Plumbing Code and/or the Health Depart­

ment of Marin County. Permit to install a septic tank shall be

refused when, in the opinion of the Board or the District Engi-

neer, such installation would result in a septic or otherwise

objectionable condition. No septic tank or other individual I sewage disposal system shall be permitted which would result in a I .

8 septic or otherwise objectionable condition, or which would dis-

char ge into any public sewer or any stream or other water course.

Sec. 405. Abandonment of Facilities. At such time as a public sewer becomes .. available to a property served by an individual sewage disposal system, a direct connection shall be made to the public sewer in ' .

I I compliance with this code and applicable ordinances, rules and

I' regulations of District, and any septic tanks, cesspools, or simi­ j. lar individual sewage disposal facilities shall be abandoned per

Appendix "C" of this ordinance. r : Sec. intenance and Operation of ~ Individual Sewage Disposal System. L y individual sewage disposal system operating within the i. District remains under District jurisdiction and must be maintain­

I • ed in a manner consistent with District rules and regulations.

I ' Said system shall be subject to inspection, repair and/or modifi-

cation when deemed necessary by the District. Cost of Maintenance £y Owner . All costs for the maintenance,

operation, repair and modification of individual sewage disposal

systems shall be borne by the owner at no expense to the District.

Sec . 498. Additional Requirements. No statement contained in this Article

shall be construed to interfere with any additional requirements f I. that may be imposed by any law, ordinance, rule or regulation of the State or local agency, or by the Health Officer of the County I. of Marin. ARTICLE V

t: BUILDING SEWERS

Sec. 591. Permit Required. No person within the District shall construct,

extend or alter any sewer or make a connection with a public sewer

9 I. without first obtaining a written permit from the District and

paying all fees, tolls and charges required by this code and by

applicable District rules and regulations. The permit shall be

I, obtained at the District Office prior to commencement of work and shall not become effective until all District requirements are

I' met. No connection shall be made to other than an approved public l j or private sewer by a subdivision sewer system provided and

I' constructed pursuant to an agreement with the District.

Sec. 502. Construction Requirements. All building sewers installed within I I. the District shall be constructed in conformance with the provi- sions of the STANDARD SPECIFICATIONS FOR BUILDING SEWER CONSTRUC-

1: TION OF THE RICHARDSON BAY SANITARY DISTRICT, which are set forth !: in Appendix "C" hereto attached and by reference incorporated herein.

Sec. 503. Separate Building Sewers. Each separate building shall be con-

nected to the main sewer with a separate building sewer, except

I. that one or more buildings located on land owned by the same

person may be served by a common building sewer if the District

Engineer determines that it is unlikely that the land can or will [. be divided in the future. However, if for any reason, the land is

subsequently divided into two or more parcels, each building on I. land under dissimilar ownership shall be provided with a separate building sewer, and it shall be unlawful for the owners of the

parcels to continue to use or maintain such sewer as a common

building sewer. I • Notwithstanding the provisions hereof, single family resi-

dential units with common walls, condominiums, stock cooperatives,

community apartments or other similar improvements which entitle

10 the owners of interests therein to occupy independent ownership

'I interests and to make joint use of utility and other s~rvices,

which may be provided service by facilities owned in common, may, I I I, upon issuance of a special joint-use permit by the District Engineer be permitted to use and maintain a common building sewer I I I I or sewers.

Sec. 594. Separate Ownership. Where two or more buildings located on pro­

perties not belonging to the same owner, are connected with a main l: sewer by a common building sewer, the use of the common sewer may continue, provided that - (1) it is 6" or more in size; (2) it is 1: constructed in accordance with District standards for public [ : sewers as approved by the Engineer; and (3) the owner of the property upon which the common portion of the sewer is located I: provides the other owner or the District, if it is a public common building sewer, with a properly executed deed to said common

portion of the sewer or with a license coupled with an interest r· to enjoy the use of said common building sewer. I Sec. 595. Old Building Sewers. Old building sewers may be used for con- !. nections from new buildings only when, upon examination and test by the District Inspector, they meet all requirements of the I. District. All provisions of this code pertaining to permits, in- spection fees, construction and inspection of new building sewers L shall also apply to old building sewers to be used for new instal- ,. lations. Sec. 596. Sewer Too Low. In all cases wherein any building sewer is too low

to permit gravity flow to a private or public main sewer, sewage

carried by such building sewer shall be lifted by artificial

I I means, reviewed and approved by the District Engineer, and dis-

11 charged to an appropriate main sewer at the sole expense of the

owner. Plans for such artificial means shall be attached to the

application for the permit and shall be accompanied by an addi- I' I • tiona! fee, the amount of which is to be set by the Engineer on an I. individual basis, to cover examination of such plans the the Dis- II trict Engineer.

r Sec. 597. Maintenance of the Building Sewer. Building sewers shall be

maintained by the owner or owners of the property served thereby. ( : Where a building sewer provides service to more than one single family residential unit in a development with common walls, condo- ( ' miniums, stock cooperatives, community apartments or other similar

improvements, the obligation to maintain the building sewer shall f . be borne by the homeowner's association or other entity responsi- L ble for the maintenance of the property and facilities owned in common.

Sec. 598. Repairs to Building Sewers. Should the District find it necessary

or expedient to make or to have repairs made to any building

I. sewer, the cost of such repairs, including all costs incidental I~ thereto, shall be borne by the owner or owners of the property served by the building sewer in question. I Sec. 599. Payment of Capacity Connection Charge and Other Fees and Charges. Before installation, for which application for connection to the [ ~ public sewer system has been made, can be approved and the build- L ing released for occupancy, a capacity connection charge, inspec- tion fees and other fees and charges shall be paid to the

District.

(Adopted by Ord. 58, Dec. 15, 1987, Amended by Ord. 64, September 19, 1989)

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12 Sec. 510. Computation of Capacity Connection Charge and Cost of Computation.

The amount of each capacity connection charge shall be \based on

the number of fixture units as per Appendix "A" of this code, and I' I as outlined in this code for various types of occupancy. In any case wherein the calculation of the number of fixture units is so l : complicated as to require engineering help to arrive at the proper I r calculation, or in any case wherein such help is required to check ' . calculations made by applicant or District employees, the cost of

such engineering services shall be paid in full by the applicant.

(Adopted by Ord. 58, Dec. 15, 1987, Amended by Ord. 64, September 19, 1989)

Sec. 511. Amount of Capacity Connection Charge. The capacity connection

charge for fixture units in each installation covered by a permit

is set forth in Appendix "B" of this code.

(Adopted by Ord. 58, Dec. 15, 1987, Amended by Ord. 64, September 19, 1989)

Sec. 512. Capacity Connection Charge for Dormitories. Capacity connection

charges for dormitories shall be computed by the following

formula. I. A. Divide the maximum number of occupants for which the establishment is designed by 4. This gives the equivalent number of single family dwellings.

B. Find the total number of fixture units (as per schedule of Appendix "A" private use) of the building or buildings to be connected.

C. Divide the total number of fixture units by the equivalent single family dwellings. This gives the fixture units per equivalent single family dwelling. Determine the capacity connection charge per equivalent single family dwelling l. based on schedule of Appendix "A" and the charge per fixture unit set forth in Appendix "B".

D. Multiply this charge by the number of equivalent L family units. This is the total capacity connection charge to be levied for the facilities to be connected. (Adopted by Ord. 58, Dec. 15, 1987, Amended by Ord. 64, September 19, 1989)

I • 13 Sec. 513. Non-Residential Establishments. Capacity connection charges for

such establishments are computed from the schedule in Appendix "A" I • for public use.

(Adopted by Ord. 58, Dec. 15, 1987, Amended by Ord. 64, September 19, 1989)

I. sec. 514. Change in Plumbing Fixtures. When a property owner changes the ·• number of plumbing fixtures connected, or to be connected, sub-

f I sequent to his or a previous owner's application for connection to I. the public sewer, he shall report such change to the District

Ir Office. (Adopted by Ord. 58, Dec. 15, 1987, Amended by Ord. 64, September 19, 1989) ( Sec. 515. Capacity Connection Charges for Change in Plumbing Fixtures. Upon

receipt of report of change, the District shall compute the addi- r : tional capacity connection charge on the basis of the then current

I, schedules found in Appendices "A" and "B".

(Adopted by Ord. 58, Dec. 15, 1987, Amended by Ord. 64, September 19, 1989) I. ARTICLE VI ! . PUBLIC SEWER CONSTRUCTION I Sec. 69 l. Contract Required. No person shall construct, extend, or alter !. any public sewer without first entering into a written contract with the District. This contract is to cover all pertinent phases I: of construction, preparation of plans and specifications, inspec- tion, furnishing and release of performance bonds, easements, as- ( : built maps, and final acceptance of the public sewer by the Dis- L trict. Application for such contract shall be made to the Dis- trict by duplicate letter to the District Engineer and the Dis­ 1: trict Office. Sec. 692. Plans, Profiles, and Specifications Required. The copy of the

I. letter directed to the District Engineer making application for a

14 I I

contract for public sewer construction shall be accompanied by

'' complete plans, profiles and specifications, complying with this

I • code and all applicable rules and regulations of District, [: prepared by a registered civil engineer, showing all details of the proposed work based on an accurate survey of the ground. The . I: application, together with the plan, profiles and specifications I' shall be examined by the District Engineer, who shall within ten I. (10) days after applicant has made deposit to cover estimated I: costs as per Sec. 693, approve them as filed or require them to be modified as he deems necessary for proper installation. After

I: approval by the District Eng ine~r, the application, plans, pro- files and specifications shall be submitted to the Board at its

1: next regular meeting for its consideration. When the Board is I~ satisfied that the proposed work is proper and the plans, profiles and specifications are sufficient and correct, it shall order the I~ preparation and execution of the contract mentioned in Sec. 691 above, which upon propert execution by all necessary parties shall

I. be considered the District's permit for public sewer construction. I Sec. 603. Advance Payment of All District Costs. The District Office, upon receipt of its copy of the applying letter for a public sewer con­ 1: struction contract, shall within five (5) days compile an estimate of the cost to the District of preparing and executing such con-

1: tract, District's administrative cost, legal fees, engineer's 1: charges to the District for examining and approving the plans, profiles and specifications, for inspection of the construction, 1: and for tests and approval of facilities. The District shall ,. forward to the applicant this breakdown of estimated costs which shall be paid in full by the applicant. This payment shall be I . 15

I ' considered a deposit toward actual, final costs to the District,

. ' an itemized statement of which shall be forwarded to the applicant\

I' ,. as soon after the receipt of the Engineer's Certificate of Comple­ tion as these costs can be determined by the District.

Sec. 694. Other Parties Participating in Contract. Where other parties, in I: addition to the property owner and the District, are involved in I: the proposed construction program, the property owner initiating such construction shall arrange for all such parties to be signa- I' tors to said contract. Sec. 695. Degree of Involvement. The degree and type of involvement re-

!I quiring participation in the contract, as per Sec. 604, shall be left to the judgment of the Board in each invividual case, but in

I: general shall apply to other property owners benefiting by, and I: participating in the construction; other property owners on whose property a part, or all, of the 1 ine or 1 ines are to 1 ie; other I: governmental bodies or departments thereof, including special assessment districts ere a ted by such governmental bodies or de-

1: partments. I Sec. 696. Construction of Minor Nature ~ Permit. The District, through action of its Board, may issue a permit for public sewer constuc- [ : tion of a minor nature without the execution of a contracty. All construction shall be according to appropriate District standards, l : as approved by the District Engineer, and shall be supervised by I. the District Engineer.

Sec. 697. Plans Required for Minor Construction ~ Permit. The owner shall L furnish the District Engineer with plans for such minor construe- tion as required by the District Engineer.

Sec. 698. Easements, Rights-of-Way, £!_ Fee Title Property. In the event 16 that the acquisition of rights in real property is required for

the extension of the public sewer system or the making of' connec­

tions thereto, the applicant shall procure and have accepted by [: the Board proper deeds of easements, grants of right-of-way or, grant deeds sufficient in law to allow for the construction, main-

[: tenance, and operation of such extension or connection. r Sec. 699. Persons Authorized to Perform Work. Only properly licensed con-

tractors shall be authorized to perform the work of public sewer [: construction within the District. All terms and conditions of the contract shall be binding on the contractor. The requirements of L this section shall apply to building sewers installed concurrently I . with public sewer construction.

Sec. 619. Grade Stakes. Grade and line stakes shall be set by a registered

civil engineer or licensed land surveyor prior to the start of I • work on any public sewer construction. The contractor shall be

I • responsible for accurately transferring grades to grade bars and ,. sewer invert.

Sec. 611. Compliance with Regulations. Any per son constructing a sewer I. within a street shall comply with all State, County or City laws, ordinances, rules and regulations pertaining to the cutting of

pavement, opening, barricading, lighting and protection of trench­

es, backfilling and repaving thereof and shall obtain all permits

and pay all fees required by the department having jurisdiction

prior to the issuance of a permit by the District. Any person re­

questing a permit shall also comply with all applicable guide-

lines, including the local Guidelines of District, adopted pursu­

ant to the Environmental Quality Act of 1979, as amended, and

shall make all deposits required and pay all fees which may be 17 I I

established by the District to process applications to comply with

said Act. \

Sec. 612. Protection of Excavation. The applicant shall maintain such bar-

r iers, 1 igh ts and signs as are necessary to give warning to the I' f 1 public at all times that a sewer is under construction and of each

I l dangerous condition to be encountered as a result thereof. He

, . shall protect the public in the use of all sidewalks against any

I ' such conditions in connection with the construction of the sewer. r. l. Streets, sidewalks, parkways and other property disturbed in the ,. course of the work shall be reinstalled in a manner satisfactory to the District and the County or any person having jurisdiction

I. thereover.

Sec. 613. Design and Construction Standards. Minimum standards for the I. design and construction of public sewers within the District shall ,. be in accordance with the provisions of the SPECIFICATIONS FOR I • PUBLIC SEWER CONSTRUCTION, which are the District's

specifications, and are set forth hereto attached

I' said specifica- I: tions are on file in the District Office. may permit modifications or may require higher standards where L unusual conditions are encountered. Prior to preparing plans and specifications for special structures, basic design requirements

L shall be obtained from the District Engineer, the cost of which

shall be borne by the developer.

Sec. 614. Public Sewers to Be in Streets. All public sewers shall be con- I. structed in public streets. 615. As-Built Maps. One (1) complete as-built reproducible drawing

showing the actual location of all mains, structures, Y's and I, 18

I' .' building sewers shall be filed with the Engineer before final ac-

ceptance of the sewer work.

Sec. 616. Engineer's Statement of Completion. Upon completion of the sewer

work, the District Engineer shall issue a statement of completiong I' to the District Board. This statement shall only be issued after I' I. the following conditions are met, to the satisfaction of the

I' District Engineer.

I' a. The public sewer construction has been completed in conform­

ance with the plans and specifications as submitted by the

owner and the provisions of the contract.

b. The installation has been tested by, or under the supervision

of the District Engineer.

c. A satisfactory reproducible as-built map has been received by

the District Engineer.

d. Easements, rights-of-way, or fee title property are sufficient

and satisfy the provisions hereof.

e. All other public and utility improvement work in the area has

been completed, and no damage has been inflicted upon the

previously tested and inspected sewers and related structures.

In case sewers or related structures have been damaged, they

shall have been repaired in a manner and to a degree consist­

ent with Paragraph a. of this section.

f. That the sanitary sewerage facilities have been installed to

the District Engineer's satisfaction, that all costs of mate­

rials, work, inspection, supervision, legal, engineering and

all incidental expenses therefor, and all rates and charges

I. established by the District have been paid by subdivider, t. developer or applicant. 19 I. No oral manifestation or written document other than the "State­

ment of Completion" shall constitute or be construed to co~stitute

a statement of completion of the sewer system, or parts thereof, I' by the District Engineer.

I Sec. 617. Acceptance of System Not Implied. The issuance of said Statement .. I 1 of Completion by the District Engineer shall not constitute or be

I. construed to constitute acceptance of the sewer system, or parts I. thereof, by the District.

Sec. 618. Acceptance for Ownership. Upon receipt of the Engineer's State­

ment of Completion, the District shall, by resolution adopted by ( ' the affirmative vote of not less than three (3) Board members, I. accept the sewer system for ownership and maintenance, provided ,. the conditions of Sec. 619 through 622 are met, and the Board is satisfied that the sewer system is ready for such acceptance.

Sec. 619. Title to Easements and Properties. Prior to acceptance of a

public sewer system, the District shall accept title to all inter-

ests in real property required and necessary for the proper main-

!: tenance and operation of the newly completed system. The District L shall also accept title to all properties upon which pumping ,. stations or other auxiliary sewerage facilities are located, as provided in the contract.

629. Payment of All Costs. Prior to acceptance of a public sewer I. Sec. system, the subdivider, developer, applicant or special assessment 1: district shall have been billed for, and shall have paid all costs incurred by the District, in excess of the amount covered by the [ . deposit of Section 693.

Sec. 621. No Liens or Claims for Payment. The District shall not accept a

I • public sewer system for maintenance if there are any liens against L 20 ' '

'.

the system or claims for payment by any person or firm arising out . ' of construction of the system, or incidental thereto.

Sec. 622. Public Sewer Construction £y District. Nothing contained in this r. code shall be construed to prevent the District from altering or constructing a public sewer or aux i 1 i ary structure with its own

l : forces, or by letting the work to a contractor or contractors, if l: such alteration or construction is, in the Board's opinion, to the benefit of the District. I: ARTICLE VII I. USE OF PUBLIC SEWERS '· Sec. 701. Prohibitions on Discharge. No person shall discharge, or cause to

be discharged, wastes, drainage water, or wastewater inconsistent

with the provisions of "AN ORDINANCE ADOPTING AND ESTABLISHING

WASTEWATER DISCHARGE REQUIREMENTS FOR THE USERS OF THE SANITARY

SEWERAGE FACILITIES OF THE SEWERAGE AGENCY OF SOUTHERN MARIN".

Sec. 702. Grease Traps. When in the judgment of the Board, as advised by

the District Engineer, grease traps are required, an approved type

grease trap complying with the provisions of the most recent

edition of the Uniform Plumbing Code shall be installed in the

waste line leading from sinks, drains and other fixtures or equip-

ment in establishments such as restaurants, cafes, lunch counters,

cafeterias, bars and clubs, hotel, hospital, sanitarium, factory

or school kitchens, or other establishments where grease may be

introduced into the drainage or sewerage system in quantities that

can effect line stoppage or hinder sewage treatment or private

sewage disposal. A grease trap is not required for individual

dwelling units or for any private living quarters.

1 Sec. 70 3. Swimming Pools. It shall be unlawful for any person to discharge

21 I • the contents of a swimming pool into a sewer except in the manner

\ specified herein. The size of pipe carrying disch~rge water shall

not be larger than two (2) inches and shall not be under a head to I • I. exceed twenty (29) feet. If the water is discharged by pumping, the rate of flow shall not exceed one hundred (199) gallons per II - minute. Each swimming pool discharging to a sewer shall be equip-

I' ped with an approved separator to preclude any possibility of a

back flow of sewage in to the swimming pool or piping sys tern.

Diatomaceous earth or other solid materials from filter backwash-

ing shall be removed from the discharge before said discharge

enters the sewer. All connection charges as set forth in the

schedules designated Appendices "A" and "B" shall be paid.

ARTICLE VIII

'. PERMITS AND FEES

Sec. 891. Permit Required. No unauthorized person shall uncover, make any

connection with or opening into, use, alter, or disturb any public

sewer or appurtenance or perform any work on any private or buil-

I. ding sewer without first obtaining a written permit from the I' District.

Sec. 8 92. Application for Permit. Any person legally entitled to apply for I. and receive a permit shall make such application on forms provided by the District for that purpose. He shall give a description of

I: the character of the work proposed to be done and the location, L ownership, occupancy and use of the premises in connection there- with. The District may require plans, specification or drawings L and such other information as it may deem necessary. If it is determined that the plans, specifications, drawings,

'. descriptions or other information furnished by the applicant are 22 I'

in compliance with the code, rules and regulations of the Dis­

. ' trict, the permit shall be issued upon payment of the "required

I i fees and charges as herein specified.

Sec. 803. Compliance with Permit. After approval of the application, evi-

denced by the issuance of a permit, no change shall be made in the . 1: location of the sewer, the grade, materials, or other details from

those described in the permit or as shown on the plans and speci­ f : fications for which the permit was issued except with written I' permission from the District, or its authorized representative. Sec. 804. Agreement. The applicant's signature on an application for any

{ permit shall constitute an agreement to comply with all of the ,. provisions, terms and requirements of this code and rules and regulations of the District, and with the plans and specifications I' which have been filed with the application, if any, together with I' such corrections or modifications as may be made or permitted by f . the District, if any. Such agreement shall be binding upon the

applicant and may be altered only by the District upon the written

I: request for the alteration from the applicant.

Sec. 805. Property Owner to Bear Costs. When a property owner petitions the

District for a service to be performed by the District, the owner L shall bear all costs to the District of such service of action. Upon the expressed desire of the property owner for such service

L or action, the appropriate District staff member shall forward to L the owner in writing a breakdown of such estimated costs. Only after receipt of this sum shall the District or its agent start

work on this service or action, provided that all other provisions

of this code are met. After completion of the service or action

by the District or its agent{s), and as soon as all costs to the I . 23 (, 'I District of such service or action are known, the District shall

. , forward to the owner an itemized statement of such cost an~ shall, depending on whether the owner's deposit was higher or lower than I. the actual costs, refund to or bill the owner for the difference. Sec. 806. Collection of Charges £l District Office. All charges and fees I. payable to this District under this code shall be paid, when due, to the District Office. Sec. 807. ----Bond - Public Sewer Construction. Prior to the issuance of a permit for public sewer construction the applicant shall furnish

to the District a faithful performance bond or cash in the amount

of the total estimated cost of the work. Said bond shall be

secured by a surety or sureties satisfactory to the District. The

cash deposit or faithful performance bond shall be conditioned

upon the performance of the terms and conditions of the permit and

shall guarantee the correction of faulty workmanship and the re­

placement of defective materials for a period of one {1) year

after the date of acceptance of the work by the District.

Sec. 808. Disposition of Fees. All fees collected on behalf of the District

shall be deposited with the proper authority provided by the

District to receive such funds. t Sec. 809. Outside Sewers. Permission shall not be granted to connect any - lot or parcel of land outside the District to any public sewer in 1: or under the jurisdiction of the District unless a permit therefor ·. is obtained by the applicant. The applicant shall first enter 1 into a contract in writing whereby he shall bind himself, his 1: heirs, successors and assigns to abide by this code and all rules and regulations in regard to the manner in which such sewer shall ~~ be used, the manner of connecting therewith, and the plumbing in

I: 24 I I

connection therewith and also shall agree to pay all fees required 'I for securing the permit and a monthly fee in the amount set by the

( l District for the privilege of using such sewer , and agrees to sign

a petition for annexation if and when such a petition is circul­ I: lated. The granting of such permission for an outside sewer con­ nection in any event shall be optional with the Board. I Sec. 81~ . Street Excavation Permit. An encroachment permit must be secured from the county or municipality having jurisdiction thereover, by

I: owners or contractors intending to excavate in a public street for I, the purpose of installing sewers or making sewer connections. Sec. 811. Liability. The District and its officers, agents and employees I. shall not be liable for any injury or death to any person or damage to any property arising during or growing out of the per­ {: formance of any work by any such applicant. The applicant shall be liable for, and shall save the District and its officers,

I~ agents and employees harmless from any liability imposed by law I:- upon the District or its officers, agents or employees, including all costs, expenses, fees and interest incurred in defending same 1: or in seeking to enforce this provision. Applicant shall be solely liable for any defects in the performance of his work or

i: any failure which may develop therein. I Sec. 812. Fees and Deposits - Environmental Quality Act. Where the District is the lead agency or a responsible agency for any project under L the State and local guidelines adopted pursuant to the Environmen­ tal Quality Act of 1970, the person or persons beneficially inter­

L ested shall deposit with the District the estimated cost of Dis­ 1: trict preparation of materials, reports and the making of evalua-

I: 25 .. tions of the proposed project as estimated by the District Engine­ er. Should the amount of deposit be inadequate to meet the District's costs as lead agency or as a responsible agency in-

I I volved in providing consultation to the lead agency, as required

I, by law, the District shall, prior to completion of the person or I. persons beneficially interested of the amount necessary to com­ plete the review of the proposed project which shall be f: immediately deposited with the District. Should there be a sur­ I~ plus remaining on deposit following completion of the District's evaluation of the project, the surplus shall be returned to the 1: person or persons making such deposit. { . ARTICLE IX I ENFORCEMENT

Sec. 9~1. Violation. Any person found to be violating any provision of this code or any other rule or regulation of the District shall be served by the superintendent or other authorized person with

! . written notice stating the nature of the violation and providing a I • reasonable time limit for the satisfactory correction thereof. Said time limit shall be not less than two (2} or more than seven (7} working days. The offender shall, within the period of time stated in such notice, permanently cease all violation. All persons shall be held strictly responsible for any and all acts of agents or employees done under the provisions of this code or any

rule or regulation of the District. Upon being notified of any defect arising in any sewer or any violation of this code, the person or persons having charge of said work shall immediately correct the same. I ,.I. 26 l. , . sec. 992. Public Nuisance. Contin ued habitation of any building or continued

operation of any commercial or industrial facility in violation of

the provisions of this code or any rule or regulation of the

District is hereby declared to be a public nuisance. The District may cause proceedings to be brought for the abatement of the oc­

cupancy of the building or industrial facility during the period I'' I of such violation . [: Sec. 993. Disconnection. As an alternative method of enforcing the provi­ sions of this code or any rule or regulation of the District, the I~ District shall have the power to disconnect the user or subdivi- sion sewer system from the sewer mains of the District. Upon dis- r : connection, the District shall estimate the cost of disconnection L from and reconnection to the system and such us er shall de posit the cost, as estimated, of disconnection and reconnection before 1: such user is reconnected to the system. The District shall refund (' any part of the deposit remaining after payment of all costs of disconnection and reconnection.

I' - Sec. 994. Public Nuisance, Abatement. During the period of such discon- I • nection, habitation of such premises by human beings shall consti­ t: tute a public nuisance, whereupon the District shall cause pro­ ceedings to be brought for the abatement for the occupancy of said ( : premises by human beings during the period of such disconnection. t : In such event, and as a condition of reconnection, there is to be paid to the District a reasonable attorney's fee and cost of suit L arising in said action . Sec. 995 . Means of Enforcement Only. The District hereby declares that the

I: foregoing procedures are established as a means of enforcement of t: the terms and conditions of its code, rules and regulations, and I" 27 f.

not as a penalty • . . Sec. 996. Misdemeanor. Section 6523 of the Health and Safety Code of the

I' State of California provides that the violation of a code, ordin­ I' ance, rule or regulation of a Sanitary District by any person is a I I misdemeanor punishable by fine not to exceed One Hundred Dollars

[: ($109.99), imprisonment not to exceed one (1) month, or both. [: Each and every connection or occupancy in violation of the code, ordinances, rules and regulations of the District shall be deemed r: a separate violation and each and every day or part of a day, a separate offense hereunder, and shall be punishable as such. !~ Sec. 997. Liability for Violation. Any person violating any of the provi­ sions of the code, ordinances, rules or regulations of the Dis­

I~ trict shall become liable to the District for any expense, loss or I: damage occasioned by the District by reason of such violation. ARTICLE X !: MISCELLANEOUS PROVISIONS • Sec. 1991. Protection from Damage. No unauthorized person shall malicious­

ly, willfully, or negligently break, damage, destroy, uncover, L deface or tamper with any structure, appurtenance or equipment which is a part of the District sewerage facilities. Any person I. violating this provision shall be subject to the penalties provid­ ed by law. L Sec. 1902. Excavations in Work Areas. Notwithstanding any other provisions I~ of this code to the contrary, any person doing any work in public streets, or any other area through which a publicly or privately L owned sewer main, building sewer or extension thereof is placed, shall comply with all safety regulations pertaining to both work- 1 I. ,. 28 'r

men's safety rules and safety rules pertaining to the general • 1 safety of the public.

Sec. 1003. Powers and Authorities of Inspectors. The officers, inspectors,

managers and any duly authorized employees of the District shall

carry evidence establishing his position as an authorized repre-

sentative of the District and upon exhibiting the proper creden­ r r tials and identification shall be permitted to enter in and upon r ' any and all buildings, industrial facilities and properties for I I the purpose of inspection, re-inspection, observation, measure-

ment, sampling, testing or otherwise performing such duties as may

be necessary in the enforcement of the provisions of this code and

the rules and regulations of the District.

(. Sec. 1 004. Separability. If any section, s ubsection, s e ntence, clau se or

phrase of this code or the application thereof to any person or

circumstances is for any reason held to be unconstitutional or

invalid, such decision shall not affect the validity of the re-

maining portions hereof or the application of such provision to

other persons or circumstances. The Board hereby declares that it

would have adopted this code or any section, subsection, sentence, {: clause or phrase hereof irrespective to the fact that any one or more sections, subsections, sentences, clauses or phrases be

L declared to be unconstitutional. /s/ /Forrest Morphew President, Richardson Bay Sanitary District COUNTERSIGNED: /s/ Leon F. Willat Secretary

L

29 .... J, Sewage Pumps .' Special applicacion must be made for installacion of an individual sewage pumps where gravity service is not feasible. All pumping sys­ tems shall be installed in accordance with all applicable codes. The It District will only inspect the pressure line from the sewage pump to the point of connection co the District sewer system.

K. Service to More Than One Dwelling I ' Service to more than one dwelling with a single sewer requires either special permission from the District or a separate public sewer main extension as set forth in the Sanitary Code of Richardson Bay Sanitary I: District. II. DESIGN REQUIREMENTS I, A. Pipe Size I • The minimum size of a building sewer serving up to one hundred fifty (150) fixture units shall be 4" inside diameter. The minimum size of I: a building sewer serving more than one hundred fifty (150) fixture units shall conform to the size requirements for horizontal drainage piping based on fixture unit loading as given in the·"Uniform Plumbing L Code. In no event shall a building sewer connect to a sewer of a lesser size on the downstream side. I . B. Minimum Pipe Slope I . The minimum grade of a building sewer shall be t-inch per foot (2.0%). I. C. Minimum Pipe Cover

I' The minimum cover over the top of a building sewer shall be: I • l. 18 inches within the owner's premises 2. 30 inches within an easement outside the owner's premises I. 3. 48 inches within a street right-of-way

Where the above minimum pipe covers cannot be obtained, special pipe L bedding and/or concrete encasement may be required by the District Inspector or Engineer. I. D. Gravity Sewers L The following are acceptable pipe and joint materials. . L I L L iii (a) I' I. RICHARDSON BAY SANITARY DISTRICT SEWER USE CODE APPENDIX "A" . ' \ SCHEDULE OF FIXTURE UNITS '' Kind of Fixture Private Apartment Public I: Bathtub without shower 2 2 4 Bathtub with shower 3 3 6

Stall shower (or each shower head) 2 2 4 r , Stall shower with walk-in tub 3 3 6

I I wash basins 1 1 2

Water closets, flush tank type 3 3 5 " " valve type 6 6 10

Dishwasher 2 2 4

Garbage disposal 2 2 4 I. I. Kitchen sink 2 2 4 Bar sink 1 1 2

I~ washing machine and/or trays 2 1 each 4 I Bidet 2 2 4 Clinic sink 3 3 3 I: Dental unit 1 l 2 Drinking fountain 1 1 each 2

Floor drain 2 1 each 4

~~ Sand interceptor 6 10 Slop sink 2 1 each 4 [ ~ Darkroom sink 2 4 Sump - grease, car wash, etc. 3 3 each 6

Swimming pools, automatic backwash 6 1 each 1 each non-automatic backwash 2 1 each 1 each I~ Urinals, lip or stall 2 2 4 pedestal 6 6 10 trough 4 4 6 I. (Adopted by Ord. 58, Dec. 15, 1987, Amended by Ord. 64, September 19, 1989)

30 RICHARDSON BAY SANITARY DISTRICT

SEWER USE CODE \ APPENDIX "B" r 1 CAPACITY CONNECTION CHARGE

I ' A capacity connection charge for each installation r 1 authorized by a sewer permit shall be calculated by t I multiplying the number of fixture units to be serviced, r' II as determined from Appendix "A", by $91.99.

I: (Adopted by Ord. 58, Dec. 15, 1987, Amended by Ord. 64, September 19, 1989) I~ 1: I:

I • I. l: t: l : L L I.

1: 31 - Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

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I o ORDINANCE NO. 83-1

AN ORDINANCE ADOPTING AND ESTABLISHING WASTEWATER DISCHARGE REQUIREMENTS FOR THE USERS OF THE SANITARY SEWERAGE FACILITIES OF THE SEWERAGE AGENCY OF SOUTHERN MARIN

,. The Board of Commissioners of the Sewerage Agency of Southern Marin, a joint powers agency, Marin County,. California, does ordain as follows: J: ,. ARTICLE I GENERAL PROVISIONS I.

SECTION 1.01 Purpose and Policy. This Y(astewater Discharge Ordinance L sets uniform requirements for discharges Into the wastewater collection and treatment system and enables SASM to comply with the adr.1 inistrat1ve I: provisions of the Clean Water Grant Regulations, the water quality require­ ments set by the Regional Water Quality Control Board and the applicable effluent limitations, national standards of performance, toxic and pretreat­ L ment effluent standards, and any other discharge criteria which are required or authorized by State or Federal law, and to derive the maximum 1: public benefit by regulating the quality and quantity of wastewater dis­ charged Into the sewer system tributaries to a SASM treatment works. This L Ordinance provides a means for determining constituents and characteristics, l: and the Issuance of permits to certain users. SECTION 1.02 Definitions. Unless otherwise defined herein, terms shi)ll L be as adopted in the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health L Association, and the Water Pollution Control Federation. Waste constituents and characteristics shall be measured by Standard Methods unless expressly t: stated, or as establIshed by Federal or State regulatory agencies. -1- 4/22/83 • 'I

(a) "Agency" - Any public entity which Is a member of SASM. including: the Almonte Sanitary District. the Alto Sanitary District. The City of Mill Valley. the Homestead Valley Sanita~y District. the Richardson Bay Sanitary District, or the Tamalpals Community Services District. I' l. (b) "Building Sewer" - A sewer conveying wastewater from the I ' premises of a user to a community sewe~.

(c) "Beneficial Uses" - Uses of the waters of the State that may be protected against quality degradation including domestic, municipal, • agricultural and industrial supply. power generation. recreation. aesthetic enjoyment. navigation and the preservation and enhance­ ment of fish. wildlife. and other aquatic resources or reserves, and other uses, both tangible or intangible as specified by Federal or State law.

I. (d) "Community Sewer" - A sewer owned and operated by an Agency ' I. tributary to a treatment works operated by SASM.

(e) "Compatible Pollutant" - Biochemical oxygen demand, suspended solids, pH and fecal coliform bacteria, plus additional pollutants identified in SASM's National Pollutant Discharge Elimination System ( NPDES) Permit if SASM's treatment works was designed to treat such pollutants, and in fact does r:-emove such pollutants _ t: to a substantial degree.

(f) "Contar.linatlon" - An Impairment of the quality of the waters of I. the State by waste to a degree which creates a hazard to the public health through poisoning or through the spread of disease. Contamination shall include any equivalent effect resulting from the disposal of wastewater. whether or not Waters of the State are affected.

' .

-2- ~/22/83 ..

f I (g) "Federal Act" - The Federal Water Pollution Control Act, PL 92-500, and any amendments thereto; as well as any guidelines, limitations, and standards promulgated by the Environmental Protection Agency pursuant to the Act.

I' I. (h) "Holding Tank Waste" - Any waste from holding tanks such as vessels, chemical toilets, campers, trailers, septic tanks, and vacuum pump tank trucks. J :

'. (I) "Incompatible Pollutant" - Any pollutant which Is not a I • "compatible pollutant•• as defined In this Section • •

(j) "Major Contributing Industry" - Any wastewater contributor Identified In the Standard Industrial Classification (51 C) Manual In any of Divisions A, B, D, E and I that: (1) has a discharge flow of 50,000 gallons or more per average work day (If seasonal, the average shall be computed on the period of use), or (2) has a flow or polluant loading greater than five per cent of the design capacity of SASMis treatment works, or (3) has in its L wastes toxic pollutants In toxic amounts as defined In the standards Issued under Section 307(a) of the Federal Water Pollution Control Act Amendments of 1972, or ( 4) Is found by an Agency's or SASM 1s authorized representative to have significant r : Impact, either singly or In combination with other contributing Industries, on the treatment works or upon the quality of effluent I~ from the treatment works. f. ( k) "Manager" - The manager of SASM or his designated representative. (I) "Mass Emission Rate" - The weight of material discharged to the I: community sewer system during a given time Interval. Unless otherwise specified, the mass emission rate shall mean pounds {. per day of a particular constituent or combination of constituents. L· L I. -3- qJ22/83 i. •I

(m) "Person" - Any Individual, firm. company. partnership, association. and private, public and municipal corporations responsible corporate officer, the United States of America. the "\ State of California, districts and all political subdivisions, governmental agencies and mandatories thereof. I, L (n) "Pollution'' - An alteration of the quality of the Waters of the I I State by waste to a degree which unreasonably affects such I • waters for beneficial use or affects the facilities which serve I , such beneficial uses. Pollution may Include contamination; I • (o) .,Premises" - A parcel of real estate or portion thereof Including I: any lmprove·ments thereon which Is determined by an Agency or SASM to be a single user for purposes of rec~lvlng, using, and I. paying for service.

(p) "Reclaimed Water" - Water which, as a result of treatment of I. waste, Is suitable for direct beneficial use or a controlled use I. · that would, not otherwise occur.

11 I (q) SASMn - The Sewerage Agency of Southern Marin. I. ( r) "Treatment Works" - Any devices and systems used In the I. storage, treatment, recycling, and reclamation of municipal sewage or Industrial wastes of a liquid nature or necessary to recycle or reuse water at the most economical cost over the useful life of the works, Including Intercepter sewers, outfall. sewers, sewage collection systems, pumping, power, and other equipment and appurtenances; extensions, improvements, remodeling, additions and alterations thereof; elements essential L to proylde a reliable recycled supply such as standby treatment units and clear well facilities; and any works, Including site L acquisition of the land that will be an Integral part of the treatment process or Is used for ~ltlmate disposal of residues L· resulting from such treatment; or any other method or system for preventing. abating, rt!dl!Cing, storing, treating, separating I. I. -4- 4/22/83 I or disposing of municipal waste, Including storm water run-off, or industrial waste, ~ncluding waste In combined storm water and sanitary sewer systems. \

11 (s) "Unpolluted Ylater - Water to which no constituent has been I. added, either intentionally or accidentally, which would render such water unacceptable to the Agency having jurisdiction thereof for disposal to storm or natural drainages or directly to surface waters. I. I (t) "User" - Any person that discharges, causes or permits the discharge of wastewater Into a community sewer. I I. (u) "User Classification" - A classification of user. based on the 1972 f ' edition fo the Standard Industrial Classification (SIC) Manual prepared by the Executive Office of Management and Budget.

(v) "Waste" - Includes sewage and any and all other waste substances. liquid, solid, gas~ous, or radioactive. associated with human L habitation, or of human or animal origin, or from any producing, manufacturing, or proce$slng operation of whatever nature, I. including such waste placed within containers of whatever nature prior to, and for purposes of, disposal.

(w) "Wastewater" - Waste and water, whether treated or untreated, ( . discharged Into or permitted to enter a community sewer.

(x) "Wastewater Constituents and Characteristics" - The Individual L chemical, physical, bacteriological and radiological parameters, Including volume and flow rate and such other parameters that serve to define, classify or measure the contents, quality, quantity and strength of wastewater.

(y) Waters of the State" - Any water, surface or underground, including saline waters within the boundaries of the State.

-s- 11/22/83 I • ARTICLE II

REGULATIONS

It SECTION 2.01 Prohibitions on Discharges. No person shall discharge wastes to a community sewer which cause, threaten to cause, or are ,. capable of causing either alone or by Interaction with other substances:

I' ,. (a) A fire or explosion; I' (b) Obstruction of flow or Injury to the treatment works;

(c) Danger to life or safety of personnel;

(d) A strong offensive odor or prevention of the effective maintenance I: or operation of the treatment works;

. (e)" Air pollution by the release of to:XIC or malodorous gases or , . malodorous gas-producing substances;

I. (f) Interference with the wastewater treatment process;

I (g) SASM's effluent or any other product of the treatment process, I • residues, sludges, or scums, to be unsuitable of reclamation and reuse or to interfere with the reclamatron process; I~ (h) A detrimental environmental Impact or a nuisance In the Waters L of the State or a condition unacceptable to any public agency having regulatory jurisdiction over SASM; I~ (I) Discoloration or any other condition In the quality of SASM's treatment works effluent such that receiving water quality requirements established by law cannot be met;

-6- qtz2/83 I. (j) Conditions at or near SASM's treatment works which violate any statute or any rule, . regulation, or ordinance of any public agency or State or Federal regulatory body;

(k) Cause SASM's treatment works to be overloaded or cause '' excessive Agency collection or treatment costs, or may use a disproportionate share of the Agency's capacity;

I' I. (I) Containing solid materials that will Interfere with the maintenance

I' or operation of the treatment process;

I I • (m) Having a temperature high enough to Inhibit biological activity In the treatment process or to Interfere with other operation or maintenance functions.

SECTION 2.02 Prohibitions on Storm Drainage and Groundwater. Storm I. water, groundwater, rainwater, street drainage, subsurface drainage or yard drainage shall not be discharged through direct or Indirect con­ nections to a community sewer unless a perr,nlt Is Issued by SASM. SASM I. may approve the discharge of such water only when no reasonable alter­ native method of disposal Is available.

If a permit Is granted for the discharge of such water into a community sewer, the user shall pay the applicable charges and fees and meet such other conditions as required by SASM.

L SECTION 2 . OJ Prohibition on Unpolluted Water: Unpolluted water, Including, but not limited to cooling water, process water or blow-down r: from cooling towers or evaporative coolers shall not be discharged through d irect or Indirect connection to a community sewer unless a permit is Issued by the S~SM. SASM may approve the discharge of such water only when no reasonable alternative method of disposal Is available. [: If a permit Is granted for the discharge of such water Into a community sewer, the user shall pay the applicable charges and fees and shall meet L such other conditions as required by SASM. 1: I. -7- qJ22/83 . '

SECTION 2.0li Limitations on Radioactive Wastes. No person shall discharge or cause to be dlsch~rged, any radioactive waste into a com­ munity sewer except:

(a) When the person Is authorized to use radio"active materials by the r . State Department of Health or other governmental agency empowered to regulate the use of radioactive materials, and

I~ (b) When the waste Is discharged In strict conformity with current California Radiation Control Regulations (California Administrative Code, Title 17) and the Atomic Energy Commission regulations I~ • and recommendations for safe disposal, and

(c) When the person Is In compliance with all rules and regulations of all other applicable regulatory agencies.

SECTION 2.05 limitations on the Use of Garbage Grinders. Waste from I~ garbage grinders shall not be discharged Into a community sewer except:

1: (a) Wastes generated in preparation of food normally consumed on I. the premises. or (b) Where the user has obtained a permit for that specific use from I~ SASM, and agrees to undertake whatever self-monitoring is required to enable SASM to equitably determine the charges and fees based on the waste constituents and characteristics.

Such grinders must shred the waste to a degree that all particles will be f. carried freely under normal flow conditions prevailing In the commupity sewer. Garbage grinders shall not be used for grinding plastic. paper products. iner~ materials. or garden refuse.

SECTION 2.06 Limitations on Point of Discharge. No person shall discharge any substances directly Into a manhole or other opening In a community sewer other than through an approved building sewer unless he has been

Issued a permit by SASM. If a perml~ Is Issued for such direct discharge

I. -8- 4/22/83 I I the user shall pay the applicable charges and fees and shall meet such other conditions as required by SASM.

SECTION 2.07 Holding Tank Waste. No person shall discharge any holding' tank waste Into a community sewer unless he has been Issued a permit by r. SASM. Unless otherwise allowed by SASM under the terms and conditions I. of the permit. a separate permit must be secured for each separate discharge. This permit will state the specific location of discharge, the time of day the discharge Is to occur. the volume of the discharge and ': the WiSStewater constituents and characteristics. If a permit Is granted for discharge of such waste Into a community sewer. the user shall pay the applicable charges and fees and' shall meet such other conditions as required by SASM. An exception to the above Is that no permit will be required for discharge of domestic wastes from mobile home holding tanks provided that such discharges are made Into a· SASM approved facility designed to receive such wastes.

SECTION 2. 08 Limitations on Wastewater Strength.

SECTION 2.08.1 No person shall discharge wastewater containing In excess of:

0.1 mg/1 arsenic 0.2 mg/1 cadmium 2. 0 mg/1 copper 1.0 mg/1 cyanide 1. 0 mg/1 lead o.01 mg/1 mercury I. 1 • 0 mg/1 nickel 0.2 mg/1 sliver 0. 5 mg/1 total chromium 3.0 mg/1 zinc

SECTION 2.08.2 No person shall discharge any wastewater:

{a) Containing more than 300 m~/1 of 011 or Grease of animal or L vegetable origin. L -9- 4/22/83 {b) Containing more than 100 mg/1 of Oil or Crease of mineral or petroleum origin.

\ {c) Having a pH lower than 6.0.

It (d) Containing In excess of 0.02 mg/1 total Identifiable chlorinated hydrocarbons which cannot be removed by SASM's wastewater

I r treatment process. '. (e) Containing In excess of 1.0 mg/1 phenolic compounds which cannot be removed by SASM's wastewater treatment process.

! • !. SECTION 2.08.3 Effruent limitations promulgated by the Federal Act shall apply In any Instance where they are more stringent t~an those In this Ordinance. Under Section 307( b) of the Act. Federal pretreatment standards are designed to achieve two purposes: (1) to protect the operation of publicly owned treatment works, and (2) to prevent the discharge of pollutants which pass through such works inadequately treated. Users In Industrial categories subject to eff~uent guidelines issued under Section 304 (b) of the Act. which are discharging Incompatible pollutants to publicly owned treatment works. are required to adopt best practicable control technology currently available. as defined by the Administrator pursuant to Section 30'l(b) of the Act. Where SASM's treatment works was designed to and does achieve substantial removal of pollutants other than the four pollutants listed In the definition for compatible pollutants In Section 1.02f (BOD. suspended solids. pH • . and fecal coliform bacteria). SASM may. at Its discretion. not require the user to achieve best practi­ cable control technology currently available, since this would lead to an uneconomical duplication of treatment facilities. While the term "substantial removal" is not subject to precise definition. It generally contemplates removals In the .order of 80 per cent or greater. Minor Incidental removals In the order of 10 to 30 per cent are not considered "substantial." For some industrial categories It may be necessary to define pretreatment I guidelines for problems that may arise as a result of the discharge Into SASM's treatment works. However, any adjustments required for particular Industrial categories should be conslde~ed In connection with SASM's requirements rather than In the national pretreatment standard.

-to- 4/22/83 I.' ' ' ..

ARTICLE Ill

DISCHARGE REPORT. WASTEWATER DISCHARGE PERMITS, \ AND ADMINISTRATION f.

I • SECTION 3.01 Discharge Reports. SASM may require that any person I, discharging or proposing to discharge wastewater Into a community sewer I. file a periodic Discharge Report. The Discharge Report may Include, but not be limited to, nature of process. volume. rates of flow, mass· emission rete, production quantities, hou.rs of operation, number and classification

of employees, or. other. Information which relates to the generation of waste ln,ludlng wastewater discharge. Such reports may also include the chemical constituents and quantity of liquid or gaseous materials stored on site even though they are not normally discharged. In addition to Discharge Reports, the Agency may require Information In the form of Wastewater Discharge Permit applications and self-monl~orlng reports.

I SECTION 3.02 Wastewater Discharge Permits. I. .. SECTION 3.02 .1 Mandatory Permits. Each "major contributing i. Industry" as defined In Section 1.02 or other users with a discharge equivalent to that of a major contributing Industry, If not connected I: to a community sewer, must obtain a Wastewater Discharge Permlf before connecting to or discharging Into a c~mmunlty sewer. Each 1: currently connected •major contributing Industry• or equivalent user must obtain 41 Wastewater Discharge Permit within 90 days after the I: .effective date of this Ordinance. SECTION 3.02.2 Optional Permits. The Manager may Issue a Waste­ L water Discharge Permit to any user, upon application, In accordance r: with the terms of this section In the following categories. (a) . A user who requests 'harges and fees to be based on an I> esUmate of wastewater flow, or L .' -12- IJ/22/83 I . (b) Any user whose wastewater strength is less than the normal range for the user classification to which he Is assigned because of pretreatment. process changes or other reasons. \

SECTION 3.02.3 Permit Application. Users seeking a Wastewater I' Discharge Permit shall complete and file with the Manager. an application I. ·In the form prescribed by the Manager. and accompanied by the I I applicable fees. The applicant may be required to submit. In units I • and terms appropriate for evaluation. the following Information.

(a) Name, address. and SIC number of applicant;

(b) Volume of wastewater to be discharged;

I . {c) Wastewater constituents and characteristics Including but not limited to those mentioned In Sections 2.08 as determined f. by a laboratory approved by SASM; (d) Time and duration of discharge;

I (e) Average and 30-mlnute peak wastewater flow rates, Including I. daily. monthly. and seasonal variations If any; .

{f) Site plans, floor plans. mechanical and plumbing plans. and details to shown all sewers and appurtenances by size. L location, and elevation; (g) Description of activities, facilities and plant processes on L the premises Including all materials, processes and types of materials which are or could be discharged;

(h) Each product produced by type, amount. and rate of pro­ L duction;

L (I) Number and type of employees, and hours of work; I.

-13- 4/22/83 I. (j) Any other Information as may be deemed by the Manager to be necessary to evaluate the permit application.

\ The Manager will evaluate the data furnished by the user and may require additional information. After evaluation and approval of all the data required, the Manager may Issue a Wastewater Discharge .Permit subject to terms and conditions provided herein.

SECTION 3.02.11 Permit Conditions. Wastewater Discharge Permits shall be expressly subject to all provisions of this Ordinance and all other ordinances, regulations, charges and fees established by SASM. The conditions of Wastewater Discharge Permits shall be uniformly enforced by the Manager In accordance with this Ordinance, and applicable State and Federal regulations. Permits may contain the following:

{a) The unit charge or schedule of charges and fees for the wastewater to be discharged to a community sewer; ' 1: {b) The average and maximum wastewater constituents and characteristics; r· (c) Limits on rate and time of discharge or requirements for l: flow regulations and equalization; (d) Requirements for Installation of Inspection and samplfng l: facilities;

(e) Pretreatment requirement~; • L (f) ~pecificatlons for monitoring programs which may Include sampling locations, frequency and method of sampling. 1: number. types and standards for tests and reporting schedule;

I. -14- 4/22/83 (g) Requirements for submission of technical reports or discharge reports;

\ (h) Requirements for maintaining plant records relating to wastewater discharge as specified by SASM, and affording SASM access thereto;

(I) Mean and maximum mass emission rates, or other appropriate limits when Incompatible pollutants (as defined by Section 1.02j) are proposed or present In the user's wastewater discharge.

(j) Other conditions·as deemed appropriate by SASM to Insure ,. compliance with this Ordinance.

[. SECTION 3.02 .5 Duration of Permits. Wastewater Discharge Permits shall be Issued for a specified time period, not to exceed five (S) years. A Permit may be Issued for a period less than a year or may f be stated to expire on a specific date. If the user Is not notified by the' Agency 30 days prior to the explr~tlon of the Permit, the Permit shall be extended one additional year. The terms and conditions of the Permit may be subject to modification and change by SASM during the life of the Permit as limitations or requirements as Identified In Section 2.08 are modi fled and changed. The user shall be Informed of any proposed changed In his Permit at least 30 days prior to the effective date of change. Any changes or new conditions In the Permit shall include a reasonable time schedule for compliance.

SECTJO N 3.02, 6 Transfer of a Permit. Wastewater Discharge Permits are Issued to a specific user for a specific operation. A Wastewater Discharge Permit shall not be reassigned or transferred or sold to a [. new owner, new user, different premises, or a new or changed operation. 1: SECTION 3.02. 7 Revocation of Permit. Any user who violates the conditions of the Wastewater Discharge Permit, any provisions of this Ordinance, applicable State and Fe.deral regulations, or any of the following, Is subject to having his Permit revoked: I.

I. -15- 4/22/83 '. (a} Failure of user to factually report the wastewater constituents and characteristics of his discharge;

., (b) Failure of the user to report significant changes In operations, or wastewater constituents and characteristics; or I'

(c) Refusal of reasonable access to the user's premises for the purpose of Inspection or monitoring.

SECTION 3.03 Monitoring Facilities. Users who propose to discharge, or who In the judgement of SASM could discharge now or In the future, • I, wastewater with constituents and characteristics different from that produced by a domestic premise may be required to Install a monitoring facility. l I

r : When more than one user can discharge Into a common building sewer. SASM may require Installation of a separate monitoring facility for each user. Also when, in the judgment of SASM, there Is a significant dif­ ference In wastewater constituents and characteristics produced by different operations of a single user. SASM may reql:'lre that separate monitoring ,.I. facilities be Installed for each separate discharge. Monitoring facilities that are required to be Installed shall be constructed, operated and maintained at the user's expense. The purpose of the facility Is to enable Inspection, sampling and flow measurement of wastewaters I. produced by a user. If sampling or metering equipment Is also required by SASM It shall be provided, Installed, and operated at the user's L expense. The monitoring faclllty will normally be required to be located on the user's premises outside of the building. SASM may, however, when such a location would be Impractical or cause undue hardship on the user, allow the facility to be constructed In the public street or sidewalk area, with the approval of the public agency having . Jurisdiction over that street or sidewalk, and located so that It will not be obstructed by landscaping or parked vehicles.

I. ! . -16- 4/22/83 I . I' If the monitoring facility Is inside the user's fence, there shall be accom­ modations to allow safe and Immediate access for SASM personnel, such as a gate secured with a SASM lock. There shall be ample room in or near such facility to allow accurate sampling and composltlng of samples for analysis. The entire facility and the sampling and measuring equipment shall be maintained at all times In a safe and proper operating condition by and at. the expense of the user.

Whether constructed on public or private property, the monitoring facilities ~ . shall be constructed In accordance with SASM's requirements and all I • applicable local cons tructlon standards and specl flea tlons, •

[: When, In the judgment of SASM, an existing user requires a monitoring facility, the user will be so notified In writing. Construction must be f ' completed within .90 days following written notification unless a time extension Is otherwise granted by SASM.

L SECTION 3.0ll Inspection and Sampling. SASM may Inspect the facilities of any user to ascertain whether the purpose of this Ordinance Is being L met and all requirements are being complied with. Persons or occupants of premises where wastewater Is created or discharged shall allow SASM or Its

I. representative ready access at all reasonable times to all parts of. the premises for the purposes of Inspection or sampling or In the performance of any of their duties. SASM shall have the right to set up on the user's property such devices as are necessary to conduct sampling or l":letering operations. Where a user has security measures In force which would require proper Identification and dearance before entry Into their premises, the user shall make necessary arrangements with their security guards so that upon presentation of suitable Identification, personnel from SASM will be permitted to enter without delay for the purposes of performing their specific responsiblilltles.

SECTION 3, 05 Pretreatment. Users shall make wastewater acceptable under the limitations established herein before discharging Into any com­ munity sewer. Any facilities required to pretreat wastewater to a level acceptable to SASM shall be provided and maintained at the user's

-17- q/22/83 , . expense. Detailed plans showing the pretreatment facilities and operating procedures shall be submitted to SASM for review, and shall be approved

'I by the Agency before construction of the facility. The review and approval of such plans and operating procedures will In no way relieve the user from the responsibility of modifying the facility as necessary to I: produce an effluent complying with the provisions of this Ordinance. Any subsequent changes In the pretreatment facilities or method of operation shall be reported to and be approved by SASM.

SECTION 3.06 Protection from Accidental Discharge. Each user shall ( : provide protection from accidental. discharge of prohibited materials or other wastes regulated by this Ordinance. Facilities to prevent accidental I: discharge of prohibited materials shall be provided and maintained at the user's expense. Detailed plans showing facilities and operating procedures I: to provide this protection shall be submitted to SASM for review, and shall be approved by SASM before construction of the facility.

The review and approval of such plans and operating procedures will In no way relieve the user from the responsibility_of modifying the facility as necessary to provide the protection necessary to meet the requirements of this Ordinance.

SECTION 3.07 Confidential Information. All Information and data on a user obtained from reports, questionnaires, permit applications, permits and monitoring programs, and from Inspections shall be available to the public or any other governmental agency without · restriction unless the user specifically requests and Is able to demonstrate to the satisfaction of SASM that the release of such Information would divulge Information, processes or methods which would be detrimental to the users• competitive· position.

When requested by the person furnishing a report, the portions of a report which might disclose trade secrets or secret processes shall not be made available for Inspection by the public but shall be made available to governmental agencies for use In making studies; provided, however, that such portions of a report shall be avai.Jable for use by the state or any

-18- 4/22/83 '. state agency In judicial review or enforcement proceedings Involving the person furnishing the report. Wastewater constituents and characteristics . . will not be recognized as confidential Information •

Information accepted by SASl, as confidential, shall not be transmitted to I • any governmental agency or to the general public by SASM until and I. unless prior and adequate notl flcation is given to the user.

SECTION 3,08 Special. Agreements. Special agreements and arrangements between SASM and any persons or agencies may be established when In the opinion of SASM unusual or extraordinary circumstances compel special terms and conditions. Special agreements will only be entered Into provided I . I. they conform to state· and federal requirements.

SECTION 3.09 Plans for and Inspection of Sewerage Construction. Plans for sewerage construction shall meet all design requirements of the Agency having area jurisdiction and shall also meet the design requirements as established from time to time by the Engineer of SASM .

I nspectlon of all sewerage construction shall be made by personnel of the

I, Agency In the manner described in the rules and regulations pertaining thereto. t: L L L 1: 1: · t: I. -19- q/22/83 •• ARTICLE IV

ENFORCEMENT

r ' SECTION ~.01 Accidental Discharges. r. SECTION 11.01.1 Notification of Discharge. Users shall notify SASM I. Immediately upon accidentally discharging wastes In violation of this

I I Ordinance to enable countermeasures to be taken by SASM to minimize damage to the community sewer, treatment facility, treatment processes and the receiving waters.

This notification shall be followed, within 15 days of the date of occurrence, by a detailed written statement describing the causes of the accidental discharge and the measures being taken to prevent future occurrence.

Such notification will not relieve users of liability for any expense, loss or damage to the sewer system, treatment plant, or treatment process, or for any fines Imposed on SASM on account thereof under Section 13350 of the California Water Code or for violations of Section 5650 of the California Fish and Game Code. I~ SECTION 11.01 .2 Notices to Employees. In order that employees of users be Informed of SASM requirements, users shall make available I~ to their employees copies of this Ordinance together with such other wastewater Information and notices which may be furnished by SASM I. from time to time directed toward more effective water pollution control~ A notice shall be furnished and permanently posted on the user's L bulletin board advising employees whom to call In case of an accidental discharge in violation of this Ordinance. L SECTION 4.01.3 Preventive Measures. Any direct or Indirect con­ l: nection or entry point for persistent or deleterious wastes to the user's plumbing or drainage syste111 should be eliminated. Where such L L -20- 14/22/83 ·- - -- . ,

action Is impractical or unreasonable the user shall appropriately label '. such entry points to warn against discharge of such wastes In violation .. of this Ordinance.

I' SECTION '1.02 Issuance of Cease and Desist Orders. When the Agency I. finds that a discharge of wastewater has taken place, In violation of prohi­ I. bitions or limitations of this Ordinance, or the provisions of a Wastewater Discharge Permit, the Manager may Issue an order to cease and desist, and direct that those persons not complying with such prohibitions, limits,

I • requirements, or provisions to:

(a) Comply forthwith;

(b) Comply In accordance with a time schedule set forth by the Agency, or

(c) Take appropriate remedial or preventive action in the event of a threatened violation.

SECTION 4.03 Submission of Time Schedule. When SASM finds that a discharge of wastewater has been taking place, In violation of prohibitions •• or limitations prescribed In this Ordinance, or wastewater source control requirements, effluent limitations or pretreatment standards, or the pro­ visions of a Wastewater Discharge Permit, SASM may require the user to submit for approval, with such modification as It deems necessary, a I' detailed time schedule of specific actions which the user shall take In order { . to prevent or correct a violation of requirements.

L SECTION II .Oil Appeals. Any user, permit applicant, or permit holder affected by any decision, action, or determination, Including Cease and Desist Orders, made by the Manager, Interpreting or Implementing the provisions of this Ordinance or In any permit Issued herein, may file with the Manager a written request for re~onslderatlon within 10 days of such decision, action, or determination, setting forth In detail the facts sup­ porting the user's request for reconsideration.

I' -21- 11/22/83 L. . ' If the ruling made by the Manager is unsatisfactory to the person requesting reconsideration. he .may within 10 days after notification of SASM action. file a written appeal to SASM's governing body. The written . ' ' appeal shall be heard by the governing body within 30 days from the date I' of filing. SASM's governing body shall ma~e a final ruling on the appeal I' within 15 days of the close of the meeting. The Manager's decision, I' action, or determination shall remain In effect during such period of recon­ sideration.

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I • -22- 4/22/83 l. , t ARTICLE V

ABATEMENT \

J t I. SECTION 5. 01 Public Nuisance. Discharges of wastewater in any manner In violation of this Ordinance or of any order Issued by the Manager as authorized by this Ordinance, Is hereby declared a public nuisance and shall be corrected or abated as directed by the Manager. Any person

f t creating a public nuisance shall be subject to provisions of Agency codes or ordinances governing such nuisance.

{: SECTION 5.02 Injunction. Whenever a discharge of wastewater is In violation of the provisions of this Ordinance or otherwise causes or threatens to cause a condition of contamination, pollution or nuisance, SASM may petition the Superior Court for the Issuance of a preliminary or permanent Injunction or both, as may be appropriate In restraining the .. continuance of such discharge • r: SECTION 5. 03 Damage to Facilities. When a discharge of wastes causes

K • an obstruction, damage, or any other Impairment to SASM facilities, SASM l. may assess a charge against the user for the work required to clean or repair the facility and add such charge to the user's sewer service charge.

SECTION 5.04 Correction of VIolations; Collection of Costs; Injunction. In order to enforce the provisions of this Ordinance, the Agency may correct any violation hereof. The cost of such correction may be added to any sewer service charge payable by the person violating the Ordinance or L the owner or tenant of the property upon which the violation occurred, and SASM shall have such remedies for the collection of such costs as It has for the collection of sewer service charges. SASM may also petition the Superior Court for the Issuance of a preliminary or permanent Injunc­ tion, or both, as may be appropriate, restraining any person from the continued violation of this Ordinance.·

L L -23- ~/22/83 '. SECTION S.OS Civil Liabilities and Penalties. Any person who Intentionally or negligently violates any provision of this Ordinance, requirements, or conditions set forth In permits duly issued, or who discharges wastewat~r which causes pollution, or violates any cease and desist order, prohibition, effluent limitation, national standard of performance, pretreatment or toxicity standard, shall be liable civilly to liabilities Imposed by SASM against which the violation occurs. Said dvll liability may be In a sum of I' not to exceed six thousand dollars ($6,000) for each day In which such I violation occurs.

SASM may petition the Superior Court to Impose, assess and recover such I sums. In determining such amount, the court shall take Into consideration all relevant clrcumsta·nces, Including. but not limited to, the extent of harm caused by the violation. the nature and persistence of the violation, the length of time over which the violation occurs, and corrective action, If any. I • I. SECTION 5.06 Falsifying of Information. Any person who knowingly r . makes any false statements, representation,_ record, report, plan or other document filed with SASM or who falsifies, tampers with, or knowingly renders Inaccurate any monitoring device or method required under this Ordinance, Is hereby declared to be In violation of this Ordinance, and subject to the Civil Liabilities Imposed under Section 5 .OS of this Ordinance, I or subject to prosecution and punishment under Section 5.06 of this Ordinance. .. L SECTION 5.07 Termination of Service. In order to effect its powers, SASM or the appropriate member Agency may enter upon private property L for the purpose of Inspection and maintenance of sanitary and waste disposal facilities and may terminate service to property In which a violation of any rule, regulation, or this Ordinance Is found to exist.

[. Prior to termination of service, however, the SASM Board shall notify, In writing, the owner and tenant, If any, of such property that service Is Intended to be so terminated and conduct a hearing theron as herein provided. Such notice shall be mailed to the owner at the address

I ~

-24- ~/22/83 shown on the records of the Assessor of the County, or as known to the Clerk, and a copy shall be dell_vered to the tenant or posted conspicuously on the property. The notice shall state the date of proposed termlnatloQ of service and the reasons therefor and the date the SASfA Board shall hold a hearing upon such Intended termination. Such hearing shall not be J • held less than ten days subsequent to the giving of notice as herein I I required.

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[. .. . l. L I. '. -25- q/22/83 I • r ••. . .

ARTICLE VI

SEVERABILITY

1 r If any provision of this Ordinance or the application to any person or I. circumstances Is held Invalid, the remainder of the Ordinance or the application of such provisions to other persons or other circumstances shall r : not be affected.

• ARTICLE VII I. AMENDMENTS AND MODIFICATIONS The Agency may, from time to time, modify the provisions of this Wastewater ,. Discharge Ordinance for any reason the Agency deems appropriate. Any changes shall be complied with by any person that Is currently or beginning dlscharg1ng to the treatment works. I~

President Sewerage Agency of Southern Marin

Countersigned:

~--r(~.. 1 t: Secretary L (Seal) t: I. I.

I • -26- qJ22/83 I. .'0 . I hereby certify that the foregoing Is a full. true. and correct copy of an . '- .... ordinance which was duly and regularly passed and adopted by the Board of Commissioners of the Sewerage Agency of Southern Marin. Marin County. California. at a meeting duly held on the 21st day of _A...:p_r_1_1___ _ I o 19.!!._. by the following vote of the Commissioners thereof; f ' I.

AYES. and In favor thereof. Commissioners: Binderup, Davies, Rein, Roberts, Sievers and Willat. ~ . NOES. Commissioners: None. I • ABSENT. Commissioners:

;a:./~ c ,.:o::L.c( Secretary

(Seal)

,. -27- 4/22/83 t.

Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

Appendix C Element 4 (Operations and Maintenance Program) Supporting Documents

Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

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RICHARDSON BAY SANITARY DISTRICT

INCOME AND EXPENSE

/REPORT/IS

Begin: 01 Jul 2018 Begin: 01 Jul 2017 Begin: 01 Jul 2017 End: 30 Jun 2019 End: 30 Jun 2018 End: 30 Jun 2018 Index: date Index: date Index: date Lin Type: amount Type: amount Type: amount Actual minus e v Description Tag: budget Tag: financial Tag: budget Budget 1 REVENUE 2 Connection charges 20,000.00 29,666.00 20,000.00 9,666.00 3 Interest 30,000.00 18,331.51 4,000.00 14,331.51 4 Taxes 1,750,000.00 1,845,789.27 1,500,000.00 345,789.27 5 Sewer Service Charges 2,524,721.80 2,420,773.51 2,421,628.80 (855.29) 6 Inspections 2,500.00 5,701.30 2,000.00 3,701.30 7 Reclaimed water 30,000.00 21,183.56 25,000.00 (3,816.44) 8 Miscellaneous Revenue 500.00 17,550.77 500.00 17,050.77 9 10 11 TOTAL REVENUE 4,357,721.80 4,358,995.92 3,973,128.80 385,867.12 13 EXPENSES 14 ADMINISTRATIVE 15 Board Members Stipend 9,000.00 6,250.00 9,000.00 (2,750.00) 16 Election Expense 250.00 0.00 250.00 (250.00) 17 Payroll Expense 533,970.00 496,823.00 518,424.00 (21,601.00) 18 Payroll Taxes 40,849.00 35,694.82 39,659.00 (3,964.18) 19 Benefits 273,751.00 228,525.20 248,547.00 (20,021.80) 20 Other Post Employment Benefits 65,753.00 0.00 68,915.00 (68,915.00) 21 Professional Fees 50,000.00 37,785.75 50,000.00 (12,214.25) 22 Permits 500.00 490.00 500.00 (10.00) 23 SASM 2,560,915.00 2,394,592.00 2,394,592.00 0.00 24 Insurance 35,000.00 33,724.31 35,000.00 (1,275.69) 25 Claims 25,000.00 0.00 1,000.00 (1,000.00) 26 Publishing Legal Notices 200.00 0.00 200.00 (200.00) 27 28 29 Administrative Subtotal 3,595,188.00 3,233,885.08 3,366,087.00 (132,201.92) 31 32 OFFICE EXPENSES 33 34 Maintenance 1,000.00 256.33 1,000.00 (743.67) 35 Computer Supplies 1,000.00 589.99 1,000.00 (410.01) 36 Office Supplies 3,500.00 3,173.47 3,000.00 173.47 37 Communications 12,000.00 15,079.09 21,500.00 (6,420.91) 38 39 Office Expenses Subtotal 17,500.00 19,098.88 26,500.00 (7,401.12) 40 44 OPERATIONS 45 Manager Petty Cash 400.00 0.00 400.00 (400.00) 47 Laundry 4,500.00 3,918.80 4,000.00 (81.20) 48 PG&E 38,000.00 29,507.50 38,000.00 (8,492.50) 49 Water 3,000.00 2,515.76 2,000.00 515.76 50 Garbage 2,500.00 2,042.37 2,700.00 (657.63) 51 Truck Expense 24,000.00 20,511.61 24,000.00 (3,488.39) 52 Education 500.00 637.06 500.00 137.06 53 Publications (Magazines) 350.00 129.50 350.00 (220.50) 54 Dues, Memberships 7,000.00 6,919.21 6,500.00 419.21 55 Sewer Repair & Maintenance 175,000.00 141,955.14 165,000.00 (23,044.86) 56 Safety 2,000.00 1,603.79 2,000.00 (396.21) 57

RICHARDSON BAY SANITARY DISTRICT 4/29/2019 1:35 PM 1 of 2 Begin: 01 Jul 2018 Begin: 01 Jul 2017 Begin: 01 Jul 2017 End: 30 Jun 2019 End: 30 Jun 2018 End: 30 Jun 2018 Index: date Index: date Index: date Lin Type: amount Type: amount Type: amount Actual minus e v Description Tag: budget Tag: financial Tag: budget Budget 59 Operations Expenses Subtotal 257,250.00 209,740.74 245,450.00 (35,709.26) 60 61 TRESTLE GLEN PLANT MAINTENANCE 25,000.00 19,731.59 25,000.00 (5,268.41) 66 67 WATER RECLAMATION 69 Repair & Maintenance 6,000.00 0.00 6,000.00 (6,000.00) 70 Chemicals - NaOCl 38,000.00 38,976.48 33,000.00 5,976.48 72 Self Monitoring 700.00 0.00 700.00 (700.00) 73 74 Water Reclamation Subtotal 44,700.00 38,976.48 39,700.00 (723.52) 75 76 PUMP STATIONS EXPENSES 78 Bel Gardens R&M 1,200.00 2,211.52 1,000.00 1,211.52 79 Del Mar R&M 1,200.00 2,211.53 1,000.00 1,211.53 81 Hawthorne Terrace R&M 1,200.00 2,211.53 1,000.00 1,211.53 82 Greenwood Beach R&M 1,200.00 9,883.60 1,000.00 8,883.60 83 Harbor Point I R&M 1,200.00 3,310.94 1,000.00 2,310.94 84 Harbor Point IIA R&M 1,200.00 2,211.53 1,000.00 1,211.53 85 Harbor Point IIB R&M 1,200.00 2,211.51 1,000.00 1,211.51 86 Harbor Point III R&M 1,200.00 4,074.56 1,000.00 3,074.56 87 HPIII Emergency Generator R&M 1,200.00 573.57 1,000.00 (426.43) 88 Cove I R&M 1,200.00 2,211.52 1,000.00 1,211.52 89 Cove II R&M 1,200.00 2,211.52 1,000.00 1,211.52 90 Strawberry Circle R&M 1,200.00 1,099.80 1,000.00 99.80 91 Harbor Cove Way R&M 1,200.00 1,099.79 1,000.00 99.79 92 Strawberry Spit I R&M 1,200.00 1,099.79 1,000.00 99.79 93 Strawberry Spit II R&M 1,200.00 1,099.79 1,000.00 99.79 94 Strawberry Spit III R&M 1,200.00 1,099.79 1,000.00 99.79 95 Seminary Cove Pump R&M 1,200.00 3,168.19 1,000.00 2,168.19 96 Emergency Generators R&M 20,000.00 14,030.64 17,000.00 (2,969.36) 97 98 Pump Stations Subtotal 40,400.00 56,021.12 34,000.00 22,021.12 99 100 TOTAL EXPENSES 3,980,038.00 3,577,453.89 3,736,737.00 (159,283.11) 101 NET INCOME 377,683.80 781,542.03 236,391.80 545,150.23

RICHARDSON BAY SANITARY DISTRICT 4/29/2019 1:35 PM 2 of 2 RICHARDSON BAY SANITARY DISTRICT 10 YEAR CAPITAL IMPROVEMENT BUDGET FISCAL YEAR 2018-2019

DESCRIPTION PROJECT YEARS Total 10 Year 18-19 19-20 20-21 21-22 22-23 23-24 24-25 25-26 26-27 27-28 Plan Pump Stations: Strawberry Spit I PS Rehab Piping & Pumps $0 Strawberry Spit II PS Rehab Piping & Pumps $0 Strawberry Spit III PS Rehab Piping & Pumps $0 Cove I PS Rehab Piping & Pumps $80,000 $80,000 Cove II PS Rehab Piping & Pumps $80,000 $80,000 Del Mar PS Rehab Piping & Pumps $100,000 $100,000 Hawthorne Terr PS Rehab Piping & Pumps $100,000 $100,000 HP III PS Rehab Piping & Pumps $0 Belveron Gardens PS Rehab Piping & Pumps $80,000 $80,000 Harbor Point 2A PS Rehab Piping & Pumps $80,000 $80,000 Harbor Point 2B PS Rehab Piping & Pumps $80,000 $80,000 Greenwood Beach Rehab Piping & Pumps $80,000 $80,000 Seminary Cove PS Rehab Piping & Pumps $80,000 $80,000 Harbor Point 1 PS Rehab Piping & Pumps $80,000 $80,000 Strawberry Circle PS Rehab Piping & Pumps $0 Harbor Cove PS Rehab Piping & Pumps $40,000 $40,000 Upgrade Pump Station Monitoring (cloud based SCADA) $230,000 $230,000 Replace Emergency Generators $600,000 $600,000

Pump Station Total $0 $430,000 $80,000 $760,000 $80,000 $80,000 $80,000 $40,000 $80,000 $80,000 $1,710,000 DESCRIPTION PROJECT YEARS Total 10 Year 18-19 19-20 20-21 21-22 22-23 23-24 24-25 25-26 26-27 27-28 Plan Sewer Lines

Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Pipeburst lines from cleaning program (2000ft.) $200,000 $200,000 Manhole Rehab (approx. 10 MH) $30,000 $30,000 $30,000 $30,000 $30,000 $30,000 $30,000 $30,000 $30,000 $30,000 $300,000 Emergency Sewer Line Repair $50,000 $50,000 $50,000 $50,000 $50,000 $50,000 $50,000 $50,000 $50,000 $50,000 $500,000

Sewer Lines Total $80,000 $280,000 $280,000 $280,000 $280,000 $280,000 $280,000 $280,000 $280,000 $480,000 $2,800,000

Trestle Glen Upgrades

Office Equipment/Furniture (new desktops,MMS software) $10,000 $10,000 $10,000 $30,000 Slurry Seal Parking Area $9,500 $11,000 $20,500 TG Facility Roof Rehab (Projected yr 2038 $70k) $0 TG Office Phone system $5,500 $5,500 TG Facility Paint $95,000 $95,000 Push Camera for Lateral TV program (purchased 2011) $18,500 $15,500 $34,000

Trucks $50,000 $50,000 $55,000 $95,000 $55,000 $55,000 $360,000

Trestle Glen,Truck & Reclaim Water Total $88,000 $50,000 $0 $55,000 $10,000 $95,000 $150,000 $70,500 $26,500 $0 $545,000 Pump Station Total $0 $430,000 $80,000 $760,000 $80,000 $80,000 $80,000 $40,000 $80,000 $80,000 $1,710,000 Sewer Lines Total $80,000 $280,000 $280,000 $280,000 $280,000 $280,000 $280,000 $280,000 $280,000 $480,000 $2,800,000

Total Capital Improvement Budget $168,000 $760,000 $360,000 $1,095,000 $370,000 $455,000 $510,000 $390,500 $386,500 $560,000 $5,055,000

Catastrophic Relief Reserve $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 $1,000,000 Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

Appendix D Element 5 (Design and Construction Standard) Supporting Documents

Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

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Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

Appendix E Element 6 (Overflow Emergency Response Plan) Supporting Documents

Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

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OVERFLOW EMERGENCY RESPONSE PLAN

Richardson Bay Sanitary Districtt Updated April 2019

Prepared by

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TABLE OF CONTENTS

LIST OF ACRONYMS ...... i LIST OF TERMS ...... ii CHAPTER 1 INTRODUCTION ...... 1-1 1.1 OERP Goals ...... 1-1 1.2 Regulatory Requirements ...... 1-1 Chapter 2 SSO Categories ...... 2-1 2.1 Category 1 SSO...... 2-1 2.2 Category 2 SSO...... 2-1 2.3 Category 3 SSO...... 2-1 Chapter 3 Notification Procedures ...... 3-1 3.1 Notification by Field Staff or the Public ...... 3-1 3.2 Notification from Pump Station SCADA Alarms ...... 3-3 3.3 SSO Reporting Procedures and Contact Numbers ...... 3-3 Chapter 4 SSO Response Program ...... 4-1 4.1 First Responder Priorities ...... 4-1 4.2 Available Equipment ...... 4-2 4.3 Initial Response ...... 4-2 4.4 Containment or Bypass ...... 4-5 4.5 Sewage Estimation ...... 4-5 4.6 Water Quality Sampling for SSOs less than 500,000 gallons ...... 4-6 4.7 Water Quality Monitoring Plan for SSOs equal to or greater than 50,000 gallons ..... 4-7 4.8 SSO Notification Signage ...... 4-7 Chapter 5 Regulatory Reporting ...... 5-1 5.1 Multiple Appearance Points – Single SSO ...... 5-1 5.2 2-Hour Notification to Regulatory Agencies of SSOs ...... 5-1 5.3 Detailed Reporting Requirements ...... 5-1 Chapter 6 Follow-up Activities ...... 6-1

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6.1 Clean Up and Disinfection ...... 6-1 6.2 Claims for Backups into a Building ...... 6-2 6.3 Impact to Waters of United States ...... 6-2 6.4 SSO Technical Report ...... 6-3 6.5 Failure Analysis ...... 6-3 Chapter 7 Communications with the Public ...... 7-1 7.1 General Communications ...... 7-1 7.2 Public Notification of Spills that do not Reach Public Waters ...... 7-1 7.3 Public Notification of Spills that Reach Waters of the United States ...... 7-2 Chapter 8 SSO Documentation ...... 8-1 8.1 Internal Documentation of SSOs ...... 8-1 8.2 Failure Analysis Investigation ...... 8-1 Chapter 9 Training ...... 9-1

TABLES Table 1-1. SSO Response Summary Table 5-1. SSO Reporting Requirements

FIGURES Figure 1-1. SSO Categories and Definitions Figure 3-1. SSO Notification Process Figure 3-2. SSO Response Chain of Communication (During Business Hours) Figure 3-3. SSO Response Chain of Communication (Non-Business Hours) Figure 4-1. SSO Response Activities

APPENDICES Appendix OERP-A SSMP and First Responder Contact List Appendix OERP-B SSO Report Form SSO Volume Estimation Methods

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Example SSO Notification Sign(s) Appendix OERP-C Water Quality Monitoring Program Template for SSO Technical Report

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LIST OF ACRONYMS

BACWA Bay Area Clean Water Agencies Cal OES Office of Emergency Services CCTV Closed-Circuit Television CFR Code of Federal Regulations CIWQS California Integrated Water Quality System FOG Fats, Oils and Grease GPM Gallons per Minute LRO Legally Responsible Official MGD Million Gallons per Day MRP Monitoring and Reporting Program NPDES National Pollution Discharge Elimination System OERP Overflow Emergency Response Plan RBSD Richardson Bay Sanitary District R/R Roto-Rooter RWQCB Regional Water Quality Control Board SASM Sewerage Agency of Southern Marin SSMP Sewer System Management Plan SSO Sanitary Sewer Overflow SWRCB State Water Resources Control Board WDR General Waste Discharge Requirements

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LIST OF TERMS

Bay Area Clean Water Association (BACWA) – Association comprised of Bay Area wastewater treatment and collection system agencies. BACWA represents the interests of public wastewater agencies in regulatory matters and to support the exchange of information. Website: http://www.bacwa.org

Blockage – An object that partially or fully hinders flow through a sewer pipelinne. The blockage can be caused by debris in the sewer, grease buildup, root intrusion, or a partial or full collapse of the pipeline. Also known as a stoppage.

California Integrated Water Quality System (CIWQS) – A computer system used by the State and Regional Water Quality Control Boards to track information about SSOs, among other information. CIWQS is the tool used for online submittal of SSO details, which are then made available to the public. Website: http://www.swrcb.ca.gov/ciwqs/

Enrollee – The legal public entity that owns a sanitary sewer system, as defined by the Statewide WDR. Also known as a sewer system agency or wastewater collection system agency.

Infiltration – The seepage of groundwater into a sewer system, including service connections. Seepage frequently occurs through defective or craccked pipes, pipe joints, connections or manhole walls and joints.

Inflow – Water discharged into a sewer system from such sources as roof leaders, cellars, yard and area drains, foundation drains, through holes in manhole covers, cross connections from the storm system or street wash waters. Inflow differs from infiltration in that it is a direct discharge into the sewer rather than a leak through defects in the sewer.

Lateral or Private Lateral – The privately-owned sewer pipeline that conveys wastewater from the premises of a user to the District’s sewer system. Thhe upper lateral extends from the building to property line (or easement line). The lower lateral extends from the property or easement line to the connection to the pipe.

Monitoring and Reporting Program – The program used by the District to monitor, maintain records, report issues and complete needed public notifications.

Overflow Emergency Response Plan – This document identifies measures that are needed to respond to sanitary sewer overflows in a way that maximizes the protection of public health and the environment.

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San Francisco Bay Regional Water Quality Control Board – Also known as Region 2 or RWQCB. This regulatory agency preserves, enhances and restores the quality of California's water resources, and ensures their proper allocation and efficient use for the benefit of present and future generations. Website: http://www.waterboardss.ca.gov/sanfranciscobay

Sanitary Sewer Overflow (SSO) – Any overflow, spill, release, discharge or diversion of untreated or partially treated wastewater from a sanitary sewer system, including overflows or releases that reach waters of the United States, overflows or releases that do not reach wateers of the United States, and backups into buildings and/or private property caused by conditions within the publicly owned portion of the sewer system.

Sanitary Sewer Systeme – Any system of pipes, pump stations, sewer lines, or other conveyances, upstream of a wastewater treatment plant headworks used to collect and convey wastewater to the wastewater treatment plant.

Sewer System Management Plan – A series of written programs that address how a collection system owner/operator conducts daily business. Each SSMP is unique for an individual discharger. The plan includes provisions to provide proper and efficient management, operation, and maintenance of sanitary sewer systems, while taking into consideration risk management and cost benefit.

State Water Resources Control Board – Also called the State Board. This agency developed and passed the Statewide Waste Discharge Requirements fofor collection systems and maintains the SSO reporting web site.

Statewide Waste Discharge Requirements – The Statewide General Waste Discharge Requirements for Sanitary Sewer Systems was adopted by the SWCRB in 2006 to provide a structure and guidance for SSMP development. Also knoown as Order No. 2006-0003-DWQ.

Wastewater Collection System – See Sanitary Sewer System.

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CHAPTER 1 INTRODUCTION

The Richardson Bay Sanitary District (RBSD or Districct) Overflow Emergency Responsee Plan (OERP) provides guidelines for responding to, cleaning, containing, and reporting SSOs that occur during the collection system service area.

1.1 OERP Goals

The District’s goals with respect to responding to SSOs are as follows:

 Respond quickly to minimize the volume of the SSO  Eliminate the cause of the SSO  Contain the spilled wastewater to the extent feasiible  Minimize public contact with the spilled wastewater  Mitigate the impact of the SSO  Meet regulatory reporting requirements

The contents of this OERP are consistent with the information that is provided in RBSD’s Sewer System Management Plan (SSMP, updated April 2019).

1.2 Regulatory Requirements

On May 2, 2006, the State Water Resources Control Board (SWRCBB) issued a directive through Order No. 2006-0003-DWQ to require all public wastewater collection system agencies in California with greater than one mile of sewers to be regulated under General Waste Discharge Requirements (Statewide WDR). Portions of this Order related to monitoring and reporting were amended by Order No. 2013-0058-EXEC, dated July 30, 2013.

The requirements for the Overflow Emergency Response Plan ellement of the SSMP are as follows:

The District shall develop and implement an overflow emergency response plan that identifies measures to protect public health and the environment. At a minimum, this plan must include the following:

 Proper notification procedures so that the primarry responders and regulatory agencies are informed of all SSOs in a timely manner;  A program to ensure appropriate response to all overflows;  Procedures to ensure prompt notification to apppropriate regulatory agencies and other potentially affected entities (e.g. health agencies, regional water boards, water suppliers,

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etc.) of all SSOs that potentially affect public health or reach the waters of the State in accordance with the Statewide Monitoring and Reporting Program (MRP). All SSOs shall be reported in accordance with this MRP,, the California Water Code, other State Law, and other applicable Regional Water Board WDR or NPDES permit requirements. The SSMP should identify the officials who will receive immediate notification;  Procedures to ensure that appropriate staff and contractor personnel are aware of and follow the emergency response plan and are appropriately trained;  Procedures to address emergency operations, such as traffic and crowd control and other necessary response activities; and  A program to ensure that all reasonable steps are taken to contain untreated wastewater and prevent discharge of untreated wastewater to waters of the United States and minimize or correct any adverse impact on the environment resulting from the SSOs, including such accelerated or additional monitoring as may be necessary to determine the nature and impact of the discharge.

Table 1-1 summarizes notification, response, and reporting requirements that are required by the Statewide WDR.

FIGURE 1-1. SSO CATEGORIES AND DEFINITIONS

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TABLE 1-1. SSO RESPONSE SUMMARY

Element Requirement Method NOTIFICATION Within two hours of becoming aware of any Category 1 SSO greater than or equal to 1,000 Call Cal OES at: (800) 852‐7550 County HHealth Officer (415) 473‐33707 and Marin County Environmental gallons discharged to surface water or spilled in a location where it probably will be discharged to Health Services (EHS) (415) 473‐6907 are allso to be contacted. During eveningss/weekends, call the Sheriff surface water, the District will notify the California Office of Emergency Services Communication Center at (415) 479‐2311. (OES) and obtain a notification control number.

REPORTING • Category 1 SSO: the District will submit draft report within three business days of becoming • Enter data into the CIWQS Online SSO DDatabase (http://ciwqs.waterboards.ca.g ov/), certified by aware of the SSO and certify wwithin 15 calendar days of SSO end date. the Legally Responsible Official(s). • Category 2 SSO: the District will submit draft report within 3 business days of becoming • All information required by CIWQS will bee captured in the Sanitary Sewer Overflow Report. aware of the SSO and certify within 15 calendar days of the SSO end date. • Certified SSO reports may be updated bby amending the report or adding an attachmennt to the SSO • C ategory 3 SSO: the District wwill submit certified report within 30 calendar days of the end of report within 120 calendar days after tthe SSO end date. After 120 days, the State SSO Program month in which SSO the occurred. Manager must be contacted to request tto amend an SSO report along with a justificationn for why the • SSO Technical Report: the District will submit within 45 calendar days after the end date of any additional information was not available prior to the end of the 120 days. Category 1 SSO in which 50,000 gallons oor greater are spilled to surface waters. • “No Spill” Certification: the District will certify that no SSOs occurred within 30 calendar days of the end of the month or, if reporting quarterly, the quarter in which no SSOs occurred. • Collection System Questionnaire: the District will update and certify every 12 months

WATER • The District will conduct water quality sampling within 48 hours after initial SSO notification Water quality results will be uploaded inttoo CIWQS for Category 1 SSOs in which 50,000 gallons or QUALITY for Category 1 SSOs in which 50,000 galllons or greater are spilled to surface waters. EHS greater are spilled to surface waters. MONITORING requires daily water quality sampling unttil compliancce is achieveed, if there is a Category I discharge of 1,000 gallons or greater and spills into surface water.

RECORD The District will maintain the following records: Self‐maintained records shall be available dduring inspections or upon request. KEEPING • SSO event records. • Records documenting Sanitary Sewer Management Plan (SSMP) implementation and changes/updates to the SSMP. • Records to document Water Quality Monitoring for SSOs of 50,000 gallons or greater spilled to surface waters. • Collection system telemetry records if relied upon to documennt and/or estimate SSO Volume.

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CHAPTER 2 SSO CATEGORIES

The responsibilities of the SSO response team depend on the volume, location, and impact of an incident. Three categories of SSOs are defined by the SWRCB, as shown in Figure 1, above.

2.1 Category 1 SSO

Discharges of untreated or partially treated wastewater of any volume resulting from an enrollee’s sanitary sewer system failure or flow condition that:

 Reach surface water and/or reach a drainage channel tributary to a surface water; or  Reach a municipal separate storm sewer system and are not fully captured and returned to the sanitary sewer system or not otherwise captured and disposed of properly. Any volume of wastewater not recovered from the municipal separrate storm sewer system is considered to have reached surface water unless the storm drain system discharges to a dedicated storm water or ground water infiltration basin (e.g., infiltration pit, percolation pond). 2.2 Category 2 SSO

Discharges of untreated or partially treated wastewater of 1,000 gallons or greater resulting from an enrollee’s sanitary sewer system failure or flow condition that do not reach surface water, a drainage channel, or a municipal separate storrm sewer system unless the entire SSO discharged to the storm drain system is fully recovered and disposed of properly.

2.3 Category 3 SSO

All other discharges of untreated or partially treated wastewater resulting from an enrollee’s sanitary sewer system failure or flow condition.

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CHAPTER 3 NOTIFICATION PROCEDURES

The District has adopted service call/SSO response procedures that assure rapid response to minimize or eliminate impacts resulting from the SSSO. The communication process from notification of an SSO through the initiation of SSO response is described in this section.

Figure 3-1 on the following page summarizes the Disttrict’s process for SSOO notification and response.

3.1 Notification by Field Staff or the Public

The District is most often notified by the public or field staff of an SSO. The public contacts the District through the main telephone number, which is (415) 388-13345 day or night, may report the SSO in person at the District offices, or may call 9-1-1. The main telephone number is included in the phone book and on the District’s website, which can be accessed through the url: http://www.richardsonbaysd.org.

Figures 3-2 and 3-3, located at the end of this Chapter, present expanded flowcharts showing the District’s chain of communication, beginning with SSO notification from the public, during normal working hours and non-working hours.

3.1.1 During Normal Business Hours (6:00 a.m. to 3:00 p.m. Monday through Thursday and; 6:00 a.m. to 1:00 p.m. Friday

During normal business hours, telephone calls reporting SSOs are received at the District, or 9-1- 1. Calls are dispatched to the District Manager, and the District Manager/Staff contacts the RBSD Collection System Operators and Contract Responder, Roto-Rooter (R/R). District and R/R crews respond to the SSO site within a target range of 60 minutes. The contract between the District and R/R includes this requirement. The Collection System Operator arrives on site and confirms that R/R personnel are responding to pipeline issues. For pump station issues, the Collection System Operators also troubleshoot the cause of the SSO and attempt to stop the spill or overflow. The Collection System Crew and/or R/R communicate SSO details to the District Manager as soon as possible after arrival on site and regularly during the SSO response. 3.1.2 During Non-Business Hours

After normal business hours, the caller is directed to press “0” and is transferred directly to R/R. R/R responds to the call within 60 minutes, reviews the situation, addresses the issue, and documents all actions. R/R also notifies the on-call operator and District Manager and provides the necessary information for SSO reporting.

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FIGURE 3-1. SSO NOTIFICATION PROCESS

If the SSO is located outside of the service area, or is related to private lateral issue, R/R takes necessary action and also contacts the appropriate jurisdiction.

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3.2 Notification from Pump Station SCADA Alarms

Pump station alarms are received by RBSD staff via telephone. The first call is received by the office. If the call is not answered within 90 seconds, the second call is received by the District Manager’s mobile phone #1, and then within another 90 seconds, phone #2. If the District Manager does not respond to the mobile phones, the call is routed to the District Manager’s home phone. The next phones in sequence are the backup responder’s cell phone, then home phone, and then the 2nd backup responder’s cell and home phones. The recipient can press “9” to temporarily silence the alarm. However, if the issue iss not addressed at the site within 1 hour, the alarms will re-ring through the phone tree.

3.3 SSO Reporting Procedures and Contact Nuumbers

Table 3-1 summarizes timelines and contact information for reportting SSOs. Contact numbers for District response staff, neighboring agencies, and regulatory agencies are also included in Appendix OERP-A.

APPENDIX OERP-A

 SSMP and First Responder Contact List

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CHAPTER 4 SSO RESPONSE PROGRAM

The following staff are responsible for responding to SSOs:

 First Responder to SSOs: District Manager and Roto-Rooter  First Responder to Pump Station Failures: District Manager and Collection System Mechanics  Claims Processing: District Manager Following are names and contact information for the designated responders.

 In Case of Emergency: 911  County Sheriff Dispatch: (415) 473-7250  Office of Emergency Services: (800) 852-7550  District Manager: (415) 388-1345  Contract Responder – Roto-Rooter: (415) 388-2740 or (415) 898-2700  Agencies: o California Regional Water Quality Control Board: (5110) 622-2300 o California Department of Fish and Wildlife Services: (707) 944-5500 o County Environmental Health Services: (415) 473-6907 o California Office of Emergency Services: (800) 852-7550 o U.S. Coast Guard : (415) 399-3530 4.1 First Responder Priorities

The first responder’s priorities are as follows:

 To follow safe work practices, including those related to traffic control, confined space, and employee and public safety  To respond promptly with the appropriate equipment  To evaluate the cause of spill and determine responsibility  To restore the flow as soon as possible  To contain the spill whenever feasible  To minimize public access to and/or contact with the spilled sewage

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4.2 Available Equipment

The District uses R/R for sewer maintenance and SSO response. All SSO response equipment is owned and maintained by R/R. This equipment is listed in Element 4 of the SSMP.

4.3 Initial Response

Figure 4-1 on the following page provides a flowchartt that shows the steps involved in initial SSO response. The First Responder reports to the location within 60 minutes of the initial SSO report with the objective of minimizing and/or eliminating an overflow. The appropriate response measure varies based on the circumstances and nature of the SSO and the information provided by the caller. Actions related to external and internal SSOs are summarized below.

The District uses the SSO Report Form that is included in Appendix OERP-B to document the contact and response for each SSO that occurs.

4.3.1 External SSO

Upon arrival at the site, the First Responder should complete the following:

 Note arrival time at spill site, and include the time in the SSO Report Form. Record basic incident information on site, and complete the form after finishing the response.  Verify the existence of the SSO  Field verify the address and nearest cross street, and confirm that the SSO is part of the RBSD sewer/conveyance system  Conduct visual monitoring to determine immediate actions, starting with documentation of SSO volume using the methods included in the OERP  Identify and clearly assess the affected area and extent of spill, including possible impacts on surface water. Where it is safe and practical, visually inspect surface water in the vicinity of the SSO and record observations on the SSO Field Report. Signs of receiving water impacts include clear signs of sewage (solids, grease, and paper), abnormal color, fish kills, etc.  Estimate spill volume using SSO reporting guideelines in the OERP  Contain, mitigate, and minimize impacts from the SSO. If the SSO is the result of a blockage, and the blockage cannot be cleared expeditiously via hydrocleaning from the downstream manhole, then clearing and vacuuming the blockage from the pipe, containment and/or bypass pumping must be initiated.

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FIGURE 4.1. INITIAL SSO RESPONSE FLOWCHART

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 If several efforts to clear blockage have failed, the District Manager must be immediately informed, who will in turn call up other employees and local contractors to initiate emergency repair to restore flow and also provide assistance to initiate spill containment or bypass pumping.  Where safe and feasible, take necessary water quality samples at the point of discharge and at upstream and downstream locations. Use best judgment and consult with the District Manager if uncertain. Water quality monitoring is not given precedence over stopping the SSO or protecting public healthh. However, if sufficient personnel are available, monitoring is conducted in parallel with these acctivities or with the cleanup effort.  Comply with all safety precautions (traffic, confinned space, etc.)  Contact caller, if time permits. Identify SSO cause, including conducting CCTV inspection as appropriate.  Document all activities through photos and written documentation

4.3.2 Internal SSO (Residential Sewage Backup)

Upon arrival at the location of a spill into a house or a building, the First Responder should evaluate and determine if the spill was caused by a blockage in the laateral or in the RBSD-owned sewer main. If a blockage is found in a property owner’s lateral, it should be clearly communicated that response and repair of private laterals is not the District’s responsibility. The homeowner is responsible for clearing any blockage or addressiing a failure in the home's plumbing system or private lateral and for any resulting flood damage to the structure.

As a courtesy, the District will assist the homeowner in coordinating for the repair. However, the District is not authorized to repair the private lateral at the District’s cost.

If a backup in the main line is found to have caused the SSO in a house or building, the First Responder should take steps to address the issue as described above..

The First Responder should be aware of the following guidelines for SSOs on private property:

 Keep all family members and pets away from the affected area  Place towels, rags, blankets, etc. between areas that have been affected and areas that have not been affected  Move any uncontaminated property away from the overflow area. Do not remove any contaminated items.  Turn off the HVAC system

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 The First Responder should follow the following steps to assiist the homeowner:  Gather information  Call a restoration company (contact numbers aree included in the OERP), and wait for the restoration firm to arrive  Forward incident reports and related documents to the District Manager

4.3.3 Pump Station SSO

The First Responder to a potential pump station or forcemain failuure should determine whether flow can be restored within a reasonable time. If it appears that flow cannot be restored within a reasonable time or if the conveyance system facility requires construction and/or repairs, then the First Responder should employ the District’s pump station contingency plan covering containment, bypass pumping, and contractual assistaannce. Pump station emergency response procedures have been developed by DKF solutions, and manuals detailing these procedures are located in every pump station. These procedures are also included by reference in this document.

In addition, other response activities discussed above should be implemented where applicable.

4.4 Containment or Bypass

The First Responder should attempt to contain as much of the spilled sewage as possible using the following steps:

 Determine the immediate destination of the overflowing sewaage  Plug storm drains using available equipment and materials to contain the spill, where feasible. If spilled sewage has made contact with the storm drainage system, attempt to contain the spilled sewage by plugging downstream storm drrainage facilities.  Contain/direct the spilled sewage using dike/dam or sandbags  Pump around the blockage/pipe failure/pump staation or vacuum flow from upstream of the blockage and dispose of downstream of the blockage to prevent further overflow  If an SSO reaches a water body, follow the requirements below for posting and SSO notification signage. Also conduct water quality sampling as discussed above.

4.5 Sewage Estimation

Use the methods outlined in Appendix OERP-B to estimate the voluumme of the spilled sewage.

Some spills may occur in locations where the wastewater can seep into the ground or flow away from the spill location. In such conditions, consider when the spill was first detected and observations from bystanders in order to determine the total spill volume.

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4.6 Water Quality Samplingn for SSOs less than 50,000 gallons

Water quality sampling and testing is required whenever the spilledd sewage enters a water body. The purpose of testing is to determine the extent and impact oof the SSO. The following guidelines must be followed:

 The First Responder should arrange for collection of samples. Samples should be collected as soon as possible after the discovery of the SSO event.  For spills less than 1,000 gallons, at a minimum, water quality samples should be collected at the discharge point, 100 feet upstream, and 100 feet downstream  If a spill is more than 1,000 gallons, additional sites shoulld be sampled, following the requirements of the County of Marin Environmental Health Services Division (EHS) and RBSD’s Water Quality Monitoring Program, which is described in Chapter 5.  The water quality sampling procedures should follow EHS procedures as follows: o Keep the sterile collection bottle closed until it is to be filled. Do not contaminate inner surface of the lid or bottle rim. o Collect water sample just below the surffaace in knee deep water, approximately 3 feet deep (full arm’s length), without rinsing. If needed, extend the sampling pole to the fullest length to reach deeper water depth. Minimize contact with bank or beach bed as water fouling may occur. o Remove cap and hold the bottle near its base andd plunge it, neck downward, below the surface o Turn bottle until neck points slightly upward and mouth is directed toward the current. Fill bottle leaving about 1 inch of air to allow lab to mix by shaking. Collect a minimum of 100 mL. (If applicable, insert sterile collection bottle into the holder on the sample pole. Extend the sample pole and plunge bottle end into the water, bottle opening downward.) o Immediately place cap securely on bottle to avoid leaakks and contamination o Dry the bottle o Label container with distinctive sample site name, date, and time collected o Complete the laboratory requisition slip with requested information (site, bottle number, collector, date and time of collection, type of sample, test requested, name and phone number of responsible person for reporting purposes, and deliverer name). Note any field observations that may have occurred during the sampling.  Samples should be tested for fecal coliform, total coliform and enterococcus (note: Ammonia sampling is also required for SSOs greater than or equal to 50,000 gallons).

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 Samples should be stored and shipped by placing the water sample bottle in a cooler with frozen blue ice. Water sample must be kept cool. Ice may be used but care must be taken so water samples are not contaminated or dilutedd by the ice.

Water samples may be taken to the SASM Laboratory at 450 Sycamore Avenue, Mill Valley, CA 94941, (415) 388-2402. The water samples must be brought to the laboratory within 8 hours of collection, before 3:00 pm, for processing.

If the SASM laboratory is closed, utilize an alternate testing laboraatory managed by Caltest Analytical Laboratory at 1885 N Kelly Rd., Napa, CA 94558 (707) 258-4000, Toll Free 888-258-TEST (8378), Fax: 707.226.1001. Records of monitoring information shall include the date, exact place, and time of sampling or measurements, the individual(s) who performed the sampling or measurements, the date(s) analyses were performed, the individual(s) who performed the analyses, the analytical technique or method used, and the results of such analyses.

4.7 Water Quality Monitoring Plan for SSOs equal to or grreater than 50,000 gallons

A Water Quality Monitoring Plan must be implemented immediately upon discovery of any Category 1 SSO of 50,000 gallons or more in order to assess impacts from SSOs to surface waters. Water quality testing must be completed within 48 hours of the District becoming aware of the SSO.

RBSD’s SSSO Water Quality Monitoring Program is incluuded in Appendix OERP-C, and includes the following:

 Protocols for water quality monitoring  Account for spill travel time in the surface water and scenarios where monitoring may not be possible (e.g. safety, access restrictions, etc.)  Requirement for water quality analyses for ammoonia and bacterial indicators to be performed by an accredited or certified laboratory  Requirement for monitoring instruments and deviices used to implement the SSO Water Quality Monitoring Program to be properly mainntained and calibrated, including any records to document maintenance and calibration, as necessarry, to ensure their continued accuracy

4.8 SSO Notification Signaga e

Barriers shall be installed to prevent the public from having contact with the sewage. Signs should be posted to keep vehicles and pedestrians away from contact with spilled sewage. A sample warning sign is included in Appendix OERP-B.

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If a creek, stream and/or beach have been contaminated as a ressult of an SSO, notifications should be posted at visible access locations until the risk of contamination has subsided to acceptable background levels. The warning signs, once posted, should be checked every day to ensure that they are still in place. “Closed” signs should be posted at the outfall and a minimum of 100 feeet upstream and 100 feet downstream of the discharge. If there is a large volume of sewage, more signs must be posted downstream.

Signs must remain posted until the removal of signs is approved by EHS and the County Public Health Officer.

APPENDIX OERP-B

 SSO Report Form  SSO Volume Estimation Methods  Example SSO Notification Sign(s)

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CHAPTER 5 REGULATORY REPORTIING

This chapter describes the requirements that have been established for reporting of SSOs to the regulatory agencies.

5.1 Multiple Appearance Points – Singn le SSO

For reporting purposes, if one SSO event of whatever category results in multiple appearrance points in a sewer system, a single SSO report is requiired in CIWQS which includes the GPS coordinates for the location of the SSO appearance point closest to the failure point, blockage or location of the flow condition that caused the SSO, and descriptions of the locations of all other discharge points associated with the single SSO event.

5.2 2-Hour Notification to Regulatory Agencies of SSOs

Cal OES is to be notified of a Category 1 SSO greater thhan or equal to 1,000 gallons discharged to surface water or spilled in a location where it probably will be discharged to surface water. In addition, both the County Health Officer and EHS are to be contacted. During regular business hours, the Health Officer can be reached at (415) 473-3707 and the main EHS phone number to call is (415) 473-6907. During evenings/weekends, calll the Sheriff Communication Center at (415) 479-2311.

The First Responder is responsible for reviewing field data for reporting to regulatory agencies. If it is determined that the criteria for OES notification was met, than the First Responder must notify OES of the event no later than two (2) hours after:

1. The District has knowledge of the SSO; 2. Notification is possible; and 3. Notification can be provided without substantially impeding cleanup or other emergency measures. The OES phone number is (800) 852-7550.

The First Responder is responsible for obtaining an OESS Control number. Following the initial notification to OES and until the SSO report is certified in the SWRCB online SSO Database, the LRO will provide updates (or provide direction for updates to be provided) to OES regarding substantial changes to estimated volume of untreated or partially treated sewage discharged and any substantial changes to known impact(s).

5.3 Detailed Reporting Requirements

Table 5-1 provides detail on the District’s regulatory reporting requirements, which are also described in the paragraphs following Table 5-1.

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TABLE 5-1. SSO REPORTING REQUIREMENTS

If SSO Then Notify Category 1 – SSO of any volume 2‐Hour Notificatioon to Cal OES: (800) 852‐7550. Ask for an that reaches surface water OES Control Nummber (for RWQCB). County Health Officer and/or a drainage channel (415) 473‐3707 annd Marin County Environmental Health tributary to surface water, or Services (EHS) (415) 473‐6907 are also to bbe contacted. reaches a municipal separate During evenings/weekends, call the Sheriff Communication storm sewer system and not Center at (415) 473‐7250. fully captured. Within 3 Businesss Days of Notification report to SWRCB using CIWQS Within 15 Calendar Days of Conclusion of Response certify by LRO using CIWQS Within 45 Calendar Days of Conclusion of Response submit SSO Technical Repport via CIWQS online database Additional Notification as Needed – California DFWS: (707)‐ 944‐5500 Category 2 SSO: SSO of 1,000 Within 3 Businesss Days of Notification report to SWRCB gallons or greater that does not using CIWQS reach surface water, a drainage Within 15 Calendar Days of Conclusion of Response certify channel, or a municipal separate by LRO using CIWQS storm sewer system, or is

otherwise fully recovered and disposed of properly. Category 3 – All other SSOs Within 30 Calendar Days past End of Month with SSO Event report to SWRCB and certify bby LRO using CIWQS Negative Reporting (no SSOs in Within 30 Calendar Days past End of Month report by LRO month) to SWRCB using CIWQS Member Agency SSO (respond • SASM: (415) 388‐2402 and then contact member • City of Mill Valley: (415) 388‐4033 agency) • Homestead Valley Sanitary District: (415) 388‐4796 • Alto Sanitary District: (415) 388‐3696 • Almonte Saniitary District: (415) 388‐8775 • Tamalpais Coommunity Services District: (415) 389‐8722 Collection System Update and certify every 12 months Questionnaire In the event that CIWQS is not available, the LRO or their dessignee will fax all required information to the RWQCB office in accordance with the time schedules identified above. In such event, the District will submit the appropriate reports using CIWQS as soon as practical. The San Francisco Bay RWQCB (Region 2) Fax number is (510) 622‐2460.

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5.3.1 SSO Reporting for Category 1 SSOs

 Cal OES and EHS shall receive notification of Category 1 SSOs greater than or equal to 1,000 gallons, as stated earlier in this Section.  The Data Submitter must then submit the initial draft report to the SWRCB’s CIWQS Online SSO database @ http://ciwqs.waterboardss.ca.gov/ciwqs within 3 business days of becoming aware of the SSO.  Within 15 calendar days of the SSO end date, the LRO must review and certify the report in the CIWQS Online SSO database @ http://ciwqs.waterboards.ca.gov/ciwqs

5.3.2 SSO Reporting for Category 2 SSOs

 Within 3 business days of becoming aware of the SSO, the District Manager must submit the initial report to the SWRCB’s CIWQS Online SSO database @ http://ciwqs.waterboards.ca.gov/ciwqs.  Within 15 calendar days of the SSO end date, the LRO must review and certify the report in the CIWQS Online SSO database @ http://ciwqs.waterboards.ca.gov/ciwqs.

5.3.3 SSO Reporting for Category 3 SSOs

 Within 30 calendar days of the end of the calendaar month in which the SSO occurred, the LRO must submit and certify a report to the SWRCB's CIWQS Online SSO database @ http://ciwqs.waterboards.ca.gov/ciwqs.

5.3.4 No Spill Certification (Monthly)

 Within 30 calendar days of the end of a calendar month that there are no SSOs, the LRO must submit and certify a “No Spill” certification to the CIWQS online SSO database.

5.3.5 CIWQS Not Available

In the event that the CIWQS online SSO database is not available, the LRO will fax or e-mail all required information to the RWQCB office at (510) 622-2460 in accordance with the time schedules identified above. In such an event, the District will suubbmit the appropriate reports using the CIWQS online SSO database when the dataabbase becomes available. A copy of all documents that certify the submittal in fulfillment of this section shall be retained in the SSO document file.

5.3.6 Amending SSO Reports

The LRO is responsible for amending SSO reports. Ceertified SSO reports may be updated by amending the report or adding an attachment to the SSO report within 120 calendar days after the SSO end date. After 120 days, the District must contact the State SSO Program Manager to request to amend an SSO report along with a justification for why the additional information was

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Armando Martinez State Water Resources Control Board Division of Water Quality 1001 I Street 15th Floor Sacramento, CA 95814 E-mail: [email protected] Phone: (916) 341-5586

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CHAPTER 6 FOLLOW-UPP ACTIVITIES

The recovery and clean up phase begins when the flow has been restored and the spilled sewage has been contained to the extent possible. Spilled sewage shall be vacuumed or pumped and discharged to the extent possible back into the sanitary sewer system.

6.1 Clean Up and Disinfection

Clean up and disinfeection procedures must be implemented to reduce the potential for human health issues and adverse environmental impacts that are associated with an SSO event. The procedures described are for dry weather conditions and should be modified as required for wet weather conditions. Clean up should proceed quickly in order to minnimize negative impact. Any water that is used in the cleanup process should be de-chlorinated prior to use.

Where cleanup is beyond the capabilities of Districtt staff, contact a cleanup contractor to complete the work. Phone numbers are provided in the emergency response list.

Spills inside houses or buildings should be cleaned by a professional cleaning company as discussed above. Contact information for professional cleaning companies can be found in the “Water Damage Restoration” section of the Yellow Pages and is also provided in the OERP. Claims by homeowners should be forwarded to the District Manager.

In the event of an SSO event during night time hours, the incident must be re-inspected as soon as possible the following day. The site shall be insspected for any signs of sewer related debris/material that may warrant additional cleanup activities.

6.1.1 Guidelines for Cleanup

On hard surface areas, collect all signs of sewage solids and sewage-related material either by hand or with the use of rakes and brooms. Take reasonaable steps to contain and vacuum up the wastewater. Disinfect all areas that were contaminated from the SSO. Apply minimal amounts of the disinfectant solution Bio-Rooter® using a hand sprayer. Document the volume and application method of disinfectant that is employed. Allow area to dry. Repeat the process if additional cleaning is required.

On landscaped or unpaved areas, collect all signs of sewage solids and sewage-related material either by hand or with the use of rakes and brooms. Alloow the area to dry. Repeat the process if additional cleaning is required.

If the SSO has reached the storm drain system, R/R should use its combination sewer cleaning truck to vacuum/pump out the catch basin and any other portion of the storm drain that may contain sewage. In the event that an overflow occurs at night, the location should be re-inspected

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6.2 Claims for Backups into a Buildingn

The responder to a sewer backup into a house or building should complete the following:

• Gather information and fill out the Sewer Backup Summary Report included in Appendix OERP-B • Notify the District Manager of the incident • Wait for restoration firm to arrive • Forward incident reports and related documents to the District Manager. For potential claims, follow the RBSD claims management process.

6.3 Impact to Waters of United States

If an SSO is confirmed to have entered waters of the United States1, the District Manager immediately notified. The response team then proceeds with the following additional activities:

 Determine the extent of the SSO by investigating downstream until there is no evidence of sewage or debris along the creek or water body  Conduct Water Quality Sampling, following the process described below. If the SSO is 50,000 gallons or greater, collect water quality samples within 48 hours of becoming aware of the SSO  Immediately post contaminated water sign(s) and protect the waterbody from public access on all sides  Photograph sign placement and evidence of the overflow in and around the waterbody to the farthest point reached by the sewage  Determines if the waterbody is safe to enter. Durring the winter storm season, cleaning the waterbody may not be feasible due to high water flows  If feasible, block the waterbody downstream of the affected area in a location that is safe to enter and is accessible to set up a pump or utilize other sewer cleaning equipment  To the extent feasible, recover and return contaminated water to the collection system  Perform follow-up sampling until the area shows no water quality impairment and the posted signs can be removed. The District Manager ultimately determines when this happens and makes any follow up calls to affected agencies

1 40 CFR 230.3(s) defines the term “waters of the United States.” This term includes all lakes, rivers, streams (including intermittent streams), mudflats, sandflats, wetlands, sloughs, or natural ponds, or waters that could be used for recreational or other purposes.

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6.4 SSO Technical Report

If 50,000 gallons or greater from an SSO reaches surfacce waters, an SSO Technical Report must be prepared and submitted to the CIWQS online SSO database within 45 calendar days of the SSO end date. The SSO Technical Report must include,, at a minimum, the following:

1. Causes and Circumstances of the SSOs 2. Complete and detailed explanation of how and when the SSO was discovered 3. Diagram showing the SSO failure point, appearance point(s), and final destination(s) 4. Detailed description of the causes(s) of the SSO 5. Copies of the original field crew records used to document the SSO 6. Historical maintenance records for the failure location 7. Response to SSO a) Chronological narrative description of all actions taken to terminate the SSO b) Explanation of how the OERP was implemented to respond to and mitigate the SSO c) Final corrective action(s) completed and/or planned to be completed, including a schedule or actions not yet completed 8. Water Quality Monitoring: a) Description of all water quality sampling actiivities conducted including analytical results and evaluation of the results b) Detailed location map illustrating all water quality sampliing points

The District Manager is responsible for managing the development of the SSO Technical Report, and for certifying and submitting the report. An outline for the SSO Technical Report is included in Appendix OERP-C.

6.5 Failure Analyl sis

For each Category 1 SSO, all District participants involved in the response, from the person who received the call to the last person to leave the site, should meet as soon as feasible after the event to review and evaluate the incident and District response procedures. The objective of the post-SSO debrief is to determine actions necessary, if any, to reduce the recurrence and better mitigate the effects of SSOs.

APPENDIX OERP-C

• Water Quality Monitoring Program • Template for SSO Technical Report

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CHAPTER 7 COMMUNICATIONS WITH THE PUBLIC

A sewer backup is a stressful event and may include interactions with an irate resident property owner. Professional presentation is important, as a homeeowner will likely become unhappy if it is perceived that District staff are indifferent, uncaring, unresponsive, and/or incompetent.

7.1 General Communications

Effective management of a sewage backup situation is critical to avoid the potential for a costly, prolonged process with the property owner. The property owner should feel assured that the District is responsive and that their best interest is RBSD’s top priority.

How you communicate, whether on the phone, in writing, or in person, is how yoou will be perceived. Good communication with the homeowner results in greater confidence in RBSD's ability to address the problem satisfactorily, and a greateer chance that the property owner will be cooperative as the District completes response and follow-up activities.

When interacting with an affected homeowner, consider the following:

 The homeowner needs ample time to explain the situation. Show interest in what the homeowner has to say. It does not matter if you have heard the story before or already understand the problem.  As soon as possible, let the homeowner know that you will determine if the source of the sewer backup is in the sewer main and, if it is, will have it corrected as quickly as you can  State that you understand their concern and then eexplain what can be done to address the issue, either by the District, if applicable, or an outside contractor  Do not admit fault. The determination of fault is handled by management staff. If it is determined that the District is at fault, the property owner has the right to file a claim for any reasonable repairs or losses resulting from the incident.  Keep the homeowner informed on what is being done and will be done to correct the problem  Keep focused on getting the job done in a very professional manner. Small talk and blame are not appropriate during the response activities.

7.2 Public Notification of Spills that do not Reach Public Waters

For spills that are contained and do not release unrecovered sewage into a storm drain, stream or a surface water body, notification to the public shall be accomplished through the use of signs at the location of the spill.

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7.3 Public Notification of Spills that Reach Waters of the United States

If sewage reaches a Waters of the United States, the EHS will determine if a field investigation of the discharge site and potentially affected areas is required. If possible, verify the extent of the contamination in the field before the water body closure decision is made.

Creeks, streams and beaches that have been contaminated as a result of an SSO should be posted at visible access locations until the risk of contamination has subsided to acceptable background levels. The warning signs, once posted, should be checked every day to ensure that they are still in place. “Closed” signs shall be posted at the outfall and a minimum of 100 feet upstream and 100 feet downstream of the discharge. If there is a large volume of sewage, more signs must be posted downstream.

Signs must remain posted until at least two consecutive days of samplings meet the Public Beach Sanitation and Ocean Water-Contact Sports standards, or as otherwise determined by EHS. EHS has the authority to close and re-open the beaches and water bodies for public water contact. The water bodies affected are determined by the following parameters and best professional judgment:

 The volume of sewage discharged  Parameters affecting flow of sewage to the wateer bodies  Direction of current  Tides  Past experience in the area; and/or  Any other pertinent information.

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CHAPTER 8 SSO DOCUMENTATION

This chapter summarizes the documentation that is prepared and retained in response to an SSO.

8.1 Internal Documentation of SSOs

The First Responder prepares the SSO Field Report, anyy needed work orders, and in the case of a residential backup, the Sewer Backup Summary Report that is included in Appendix B. The District Manager oversees preparation of a file for each individual SSO. The file includes the following information when available:

•Initial service call information • SSO Report Form including photographic evidence documenting the SSO, and all response activities including final site conditions after operations are completed. Include date, time, and location of each photograph. • Copies of the certified CIWQS report forms including volume estimate and volume estimation calculations • Closed-Circuit Television (CCTV) inspection results if completed • Water quality sampling and test results, if applicable • Results from the failure analysis investigation, if applicable • Technical Report if prepared The Statewide WDR requires that individual SSO records be maintaiined by the District for a minimum of five years from the date of the SSO. This period may be extended when requested by a RWQCB Executive Officer. All records shall be made available for review upon SWRCB, RWQCB, or EPA staff's request. In addition to the abovementioned records, the following additional records shall be retained for all SSOs where applicable:

• All original recordings for continuous monitoring instrumentation • Service call records and complaint logs of calls received by thhe District for the previous five years • Work orders, work completed, and any other maintenance records from the previous five years that are associated with SSOs • Documentation of performance and implementation measures for the previous five years 8.2 Failure Analyl sis Investigation

The objective of the failure analysis investigation is to determine the cause of the SSO and to identify corrective action(s) needed that will reduce or eliminate future potential for the SSO to recur. When this investigation is deemed necessary, the investigation includes reviewing all relevant data to determine appropriate corrective action(s). The investigation typically includes:

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• Reviewing and completing the SSO Report Form • Reviewing past maintenance records • Conducting a CCTV inspection to determine the condition of the line segment immediately following the SSO •Interviewing staff who responded to the spill. The product of the failure analysis investigation should be the determination of the root cause and the identification of the corrective actions. The Collection System Failure Analysis Form (Appendix OERP-C) can be used to document the investigation.

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CHAPTER 9 TRAINING

All District personnel and contractor employees who may have a role in responding to, reporting and/or mitigating a sewer system overflow receive trainiing on the contents of the OERP. All new employees receive training before they are placed in a position where they may have to respond. Current employees receive annual refresher training on this plan and the procedures to be followed.

Records are kept of all training that is provided in support of this plan. The records for all scheduled training courses and for each overflow emergency response training event include date, time, place, content, name of trainer(s) and names of attendees.

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Page OERP 9-2 H\015RB-14-01\WP\OERP042919

Richardson Bay Sanitary District Overflow Emergency Response Plan APPENDICES

Appendix OERP-A

SSMP and First Responder Contact List

Richardson Bay Sanitary District Overflow Emergency Response Plan APPENDICES

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RICHARDSON BAY SANITARY DISTRICT 500 Tiburon Blvd., Tiburon, CA 94920 District Phone: (415)388-1345 District Fax: (415)388-1339 E-Mail: [email protected] April 2019

DIRECTORS: SUE BENVENUTI 408 Hilary Dr. 415-435-4242 Tiburon, CA 94920 [email protected]

DAVID EKLUND 666 Hilary Drive 415-435-2279 Tiburon, CA 94920 [email protected]

RON KOSCIUSKO 402 Hilary Drive 415-435-0650 Tiburon, CA 94920 [email protected]

JEFF SLAVITZ 45 Upper North Terrace 415-310-2410 Tiburon, CA 94920 [email protected]

FRANK TRUSHEIM 42 Reed Ranch Road 415-960-4833 Tiburon, CA 94920 [email protected]

EMPLOYEES: JOHNNY TUCKER 4401 Daywalt Road 707-827-3271 (Home) District Manager Sebastopol, CA 94472 415-261-8810 (Mobile) 415-716-6746 (Verizon)

KEN OLUFS 500 Monte Vista Lane 707-762-8414 (Home) Collections Syst. Operator Petaluma, CA 94952 415-716-7461 (Verizon) 707-486-4694 (Mobile)

TREVOR SEIDLER 6540 Bloomfield Road 415-574-5786 (Home) Collections Syst. Operator Petaluma, CA 94952 415-710-0369 (Verizon)

PAULA PFEFFER 49 Bryn Mawr Drive 415-460-1004 (Home) Office Manager San Rafael, CA 94901 415-378-8139 (Mobile)

ON-CALL OPERATOR 415-710-0819 (Verizon)

OTHER: PETER BREKHUS Law Office of Peter Brekhus 415-461-1001 District Counsel 1000 Drakes Landing Rd. 415-461-7356 (Fax) Greenbrae, CA 94904

PIPPIN CAVAGNARO Nute Engineering 415-453-4480 District Engineer 907 Mission Avenue 415-453-0343 (Fax) San Rafael, CA 94901

DAVE PEROTTI Perotti & Carrade 415-461-8500 District CPA 1100 Larkspur Landing Cir. #358415-461-6342 (Fax) Larkspur, CA 94912

ROTO ROOTER Roto Rooter 415-388-2740 P.O. Box 3415 415-898-6074 San Rafael, CA 94912

GREAT WEST LIFE 121 Deerwood Rd., Ste. 356 925-855-1095 Deferred Comp San Ramon, CA 94583 800-274-8491 Richardson Bay Sanitary District Overflow Emergency Response Plan APPENDICES

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Richardson Bay Sanitary District Overflow Emergency Response Plan APPENDICES

Appendix OERP-B

SSO Report Form SSO Volume Estimation Methods Example SSO Notification Signs

Richardson Bay Sanitary District Overflow Emergency Response Plan APPENDICES

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Sanitary Sewer Overflow Service Call and Field Report Form (Field Report)

Initial Information Date: Call Received AM / PM

Received By: Caller's Name:

Caller's Phone #: Caller's Address:

Spill Location Name / Cross Street: Location of Overflow: Time and Names of Crew Members Contacted:

Description of Complaint:

This field report, gas detector, radio, system maps, personal protective equipment and camera should be collected by field crew prior to responding.

Work Order No:

Frequency of Cleaning Date of Last Program: Cleaning: Recommendations on How to Eliminate Future Problems:

Failure Analysis YES NO Date: Complete: Distribute Field Report immedately to Manager. Page 1 of 4 Sanitary Sewer Overflow Service Call and Field Report Form (Field Report)

Field Report for Response Crew's Use

Crew: Time Mobilized AM / PM

Time Arrived at Site: AM / PM

Form Completed By: Date:

Asset #: U/S Asset #: Work Area: D/S Asset #:

Size of Line: Length of Line: Easement YES NO GPS Coordinates (Latitude / Longitude, if Available):

Comments:

Sketch of Area: (Include Manholes, Intersections, Stoppage Location, Etc.)

Page 2 of 4 Sanitary Sewer Overflow Service Call and Field Report Form (Field Report)

Complete Form if an Overflow Has Occurred

Time Overflow Started: Time Overflow Stopped: Duration of SSO: Est. Spill Volume (Gallons):

Describe How Overflow Quantity was Calculated (Section 3 and Appendix OERP-B of OERP):

Eyeball Estimate Duration / Flowrate Measured Volume

Other ______Did SSO Reach Storm Drainpipe That Was Not Fully YES NO Recovered? Did SSO Discharge to Drainage Channel and/or Surface Water? YES NO

Impacted Surface Water(s) (If Applicable): Impacted Beach(es) (If Applicable): Final SSO Destination: No Water Storm Drain Building Yard/Land Surface Water Involved

Captured from Storm Drain (100%) Other ______Volume Recovered / Returned to Sewer System (Gallons): Volume to Waters & Not Recovered, Including Surface Water, Drainage Channel, or NOT Recovered from Storm Drain (Gallons): For Continuing Spills Without Complete Blockage Removal and/or Repairs (if Applicable), Current Spill Rate (Gallons per Minute): Weather: Sunny Cloudy Rainy Rain for Several Days Primary Cause: Roots Grease Debris Vandalism Pipe Failure

Construction Damage Pump Station Failure Power Failure

Capacity (Heavy Rain) Other ______Additional Information:

Page 3 of 4 Sanitary Sewer Overflow Service Call and Field Report Form (Field Report)

Spill Appearance Point / Source of SSO:

Manhole Gravity Main Forcemain Clean Out Private Lateral

Pump Station: ______(Name) Other: ______

Blockage Location: Private Lateral

Upstream MH#: ______Downstream MH#: _____ Overflow MH#: ______Photo/Video File Location: Photos/Video Taken: YES NO Samples Taken By: Location of Samples

Describe Property Damage:

Signs Posted: YES NO Neighbors Notified: YES NO CalEMA Notified: YES NO Barricaded YES NO Date/Time: ______CalEMA Contacts/Details:

CalEMA SSO#:

RWQCB Notified: YES NO Date/Time: ______

Other Agencies Notified: ______

SSO Information Faxed to Date/Time: ______RWQCB: YES NO Caller/Customer Notified re: Status: YES NO

If Not, Why:______Recommended Spill Corrective Actions:

Page 4 of 4 Methods for Estimating Spill Volume

A variety of approaches exist for estimating the volume of a sanitary sewer spill. This Appendix documents the three methods that are most often employed. The person preparing the estimate should use the method most appropriate to the sewer overflow in question and use the best information available.

Method 1: Eyeball Estimate

The volume of small spills can be estimated using an “eyeball estimate”. To use this method imagine the amount of water that would spill from a bucket or a barrel. A bucket contains 5 gallons and a barrel contains 50 gallons. If the spill is larger than 50 gallons, try to break the standing water into barrels and then multiply by 50 gallons. This method is useful for contained spills up to approximately 200 gallons.

Method 2: Measured Volume

The volume of most small spills that have been contained can be estimated using this method. The shape, dimensions, and the depth of the contained wastewater are needed. The shape and dimensions are used to calculate the area of the spills and the depth is used to calculate the volume.

Common Shapes and Dimensions

Step 1 Sketch the shape of the contained sewage (see figure above). Step 2 Measure or pace off the dimensions. Step 3 Measure the depth at several locations and select an average. Step 4 Convert the dimensions, including depth, to feet. Step 5 Calculate the area in square feet using the following formulas: Rectangle: Area = length (feet) x width (feet) Circle: Area = diameter (feet) x diameter (feet) x 0.785 Triangle: Area = base (feet) x height (feet) x 0.5 Step 6 Multiply the area (square feet) times the depth (in feet) to obtain the volume in cubic feet. Step 7 Multiply the volume in cubic feet by 7.5 to convert it to gallons Methods for Estimating Spill Volume Page 2

Method 3: Duration and Flowrate

Calculating the volume of larger spills, where it is difficult or impossible to measure the area and depth, requires a different approach. In this method, separate estimates are made of the duration of the spill and the flowrate. The methods of estimating duration and flowrate are:

Duration

The duration is the elapsed time from the time the spill started to the time that the flow was restored.

Start Time: The start time is sometimes difficult to establish. Here are some approaches:

1. Local residents can be used to establish start time. Inquire as to their observations.

Spills that occur in rights-of-way are usually observed and reported promptly. Spills that occur out of the public view can go on longer. Sometimes observations like odors or sounds (e.g. water running in a normally dry creek bed) can be used to estimate the start time.

2. Changes in flow on a downstream flowmeter can be used to establish the start time.

Typically the daily flow peaks are “cut off” or flattened by the loss of flow. This can be identified by comparing hourly flow data during the spill event with flow data from prior days. This method will likely only be effective with consistent weather.

3. Conditions at the spill site change over time and can be used to establish the start time. Initially there will be limited deposits of toilet paper and other sewage solids. After a few days to a week, the sewage solids form a light-colored residue. After a few weeks to a month, the sewage solids turn dark. The quantity of toilet paper and other materials of sewage origin increase over time. These observations can be used to estimate the start time in the absence of other information. Taking photographs to document the observations can be helpful if questions arise later in the process. This method is valid for spills that have been occurring for a long time and may be used in conjunction with either of the above methods.

4. It is important to remember that spills may not be continuous. Blockages are not usually complete (some flow continues). In this case the spill would occur during the peak flow periods (typically 10:00 to 12:00 and 13:00 to 16:00 each day). Spills that occur due to peak flows in excess of capacity will occur only during, and for a short period after, heavy rainfall.

End Time: The end time is usually much easier to establish. Field crews on-site observe the “blow down” that occurs when the blockage has been removed. The “blow down” can

2

Methods for Estimating Spill Volume Page 3 also be observed in downstream flowmeters.

Flow Rate

The flowrate is the average flow that left the sewer system during the time of the spill.

There are three common ways to estimate the flowrate:

1. The San Diego Manhole Flowrate Chart: This chart, included as at the end of this appendix, shows sewage flowing from manhole covers at a variety of flowrates. The observations of the field crew can be used to select the appropriate flowrate from the chart. If possible, photographs are useful in documenting basis for the flowrate estimate.

2. Flowmeter: Changes in flows in downstream flowmeters can be used to estimate the flowrate during the spill.

3. Counting Connections: Once the location of the spill is known, the number of upstream connections can be determined from the sewer maps. Multiply the number of connections by 200 to 250 gallons per day per connection or 8 to 10 gallons per hour per connection.

For example: 22 upstream connections * 9 gallons per hour per connection = 198 gallons per hour / 60 minutes per hour = 3.3 gallons per minute

Spill Volume

Once duration and flowrate have been estimated, the volume of the spill is the product of duration (hours or days) and the flowrate (gallons per hour or gallons per day).

For example: Spill start time = 11:00 Spill end time = 14:00 Spill duration = 3 hours 3.3 gallons per minute x 3 hours x 60 minutes per hour = 594 gallons

3

Methods for Estimating Spill Volume Page 4

WARNING WATER CONTACT MAY CAUSE ILLNESS

¡ AVISO! EL CONTACTO CON AGUA PUEDE CAUSAR ENFERMEDADES

BY ORDER OF THE HEALTH OFFICER County of Marin FOR FURTHER INFORMATION CALL: (415) 499-6907

OR CALL

PUBLIC WORKS SUPERINTENDENT CITY OF MILL VALLEY (415) 388-4033 WARNING WATER CONTACT MAY CAUSE ILLNESS

¡ AVISO! EL CONTACTO CON AGUA PUEDE CAUSAR ENFERMEDADES BY ORDER OF THE HEALTH OFFICER County of Marin FOR FURTHER INFORMATION CALL: (415) 499-6907 OR CALL

PUBLIC WORKS SUPERINTENDENT CITY OF MILL VALLEY (415) 388-4033 Richardson Bay Sanitary District Overflow Emergency Response Plan APPENDICES

Appendix OERP-C

Water Quality Monitoring Program Template for SSO Technical Report

Richardson Bay Sanitary District Overflow Emergency Response Plan APPENDICES

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RICHARDSON BAY SANITARY DISTRICT WATER QUALITY MONITORING PROGRAM

INTRODUCTION

This Water Quality Monitoring Program provides the Agency’s response activities and standard operating procedures to be utilized in the OERP, in the event a sanitary sewer overflow (SSO) exceeds 50,000 gallons. This program is reviewed periodically and may be updated as necessary.

State Water Resources Control Board Order No. WQ 2013-0058-EXEC, Amending Monitoring And Reporting Program For Statewide General Waste Discharge Requirements For Sanitary Sewer Systems (Effective September 9, 2013), requires the following:

SSO WDR Section D. Water Quality Monitoring Requirements

To comply with subsection D.7(v) of the SSS WDRs, the enrollee shall develop and implement an SSO Water Quality Monitoring Program to assess impacts from SSOs to surface waters in which 50,000 gallons or greater are spilled to surface waters. The SSO Water Quality Monitoring Program, shall, at a minimum:

1. Contain protocols for water quality monitoring. 2. Account for spill travel time in the surface water and scenarios where monitoring may not be possible (e.g. safety, access restrictions, etc.). 3. Require water quality analyses for ammonia and bacterial indicators to be performed by an accredited or certified laboratory. 4. Require monitoring instruments and devices used to implement the SSO Water Quality Monitoring Program to be properly maintained and calibrated, including any records to document maintenance and calibration, as necessary, to ensure their continued accuracy. 5. Within 48 hours of the enrollee becoming aware of the SSO, require water quality sampling for, at a minimum, the following constituents: i. Ammonia ii. Appropriate Bacterial indicator(s) per the applicable Basin Plan water quality objective or Regional Board direction which may include total and fecal coliform, enterococcus, and e-coli.

Additionally, for spills greater than 50,000 gallons, an SSO Technical Report is required and must be submitted within 45 calendar days from the SSO end date. The SSO Technical Report requirements are described in Element VI of the OERP.

RBSD Water Quality Monitoring Program Updated June 2014 Page 2

SAFETY

Be aware of safety issues and do not subject personnel to unsafe conditions in order to comply with this Water Quality Monitoring Plan. Scenarios where monitoring may not be possible may include, but are not limited to, heavy rain/storm events where access points have been compromised, flooding around low level areas, or fast-moving water. Employ the buddy system as required to maximize employee safety when sample collection is required.

ESTIMATION OF SPILL TRAVEL TIME

The follow methods are recommended to estimate spill travel time and direction:

 Method-1; use a velocity probe if available to determine the rate of flow in the surface water or  Method-2; take visual ft/sec measurement from above, based on floating debris, to estimate the number of feet the debris has traveled in seconds.

Either method will provide a means to estimate the distance traveled and identify where the SSO may be headed within the waterway.

WATER QUALITY SAMPLING PROCEDURES

 In the event an SSO reaches a surface water or (flowing) drainage channel tributary, take samples for spills less than 50,000 gallons as appropriate and within 48 hours for spills greater than 50,000 gallons. The purpose of water quality sampling is to determine the nature and extent of the impact of the SSO.  When sampling an SSO, take a minimum of three separate sample sets as conditions allow. Water quality sampling should not be given precedence over stopping the spill or protection of public health. One sample shall be located 500’ upstream of the discharge location. The second sample shall be taken at the discharge location. A third sample shall be taken 1000’ downstream of the discharge location. Distances may be adjusted by the local health authority.  Sample for Total and Fecal Coliform, eColi, and Ammonia as a minimum. Conduct additional sampling for BOD and pH if practical.  Additional follow-up samples are recommended to confirm the extent that the impact reverts back to baseline levels. Follow-up samples may be used to determine if posting of warning signs should be discontinued (if signs were posted).  Collaboration with the County Health Department should continue until closure is obtained.  Do not forget to take into account Spill Travel Time.

RBSD Water Quality Monitoring Program Updated June 2014 Page 3

WATER QUALITY SAMPLING EQUIPMENT

The following list describes equipment that should be stocked and readily available for each water quality sampling event.

 Personnel protective equipment including latex/nitrile gloves and eye protection  3 – 100 mL sterile plastic containers for coliform analysis.  3 – 1 Liter Poly containers for BOD.  3 – 500 mL Poly containers preserved with H2SO4 for Ammonia analysis.  3 – sterile funnels  1 – Sample Collection Container  Cooler with ice packs  Chain of Custody forms

Ensure that there are adequate quantities of sample containers-kits if there are more than three sample locations.

WATER QUALITY SAMPLING PROCEDURE

1. Put on all required protective equipment including latex/nitrile gloves and eye protection 2. Use the 100 mL sterile container for coliform, 1-liter poly container for BOD and 500mL poly container for ammonia. Ammonia sample requires preservation with H2SO4 . 3. Collect three sets of samples for each incident: a. 500 feet upstream b. At the SSO entry point c. 1000 feet downstream 4. Collect all grab samples approximately 3’ - 6” below the surface (or if shallower, as close as possible to this depth) to avoid sampling debris or scum from the surface. 5. Collect the sample in a safe manner in the middle of the flow, against the direction of water flow. 6. Rinse the sample collection container. 7. Collect sample in sample collection container and photo-document the locations. 8. Transfer sample from sample collection container to individual sample bottle(s). 9. Leave approximately one inch of head space in individual sample bottles. Do not overfill. 10. Once the lid is opened for the individual sample bottle, do not touch the inside surface of the bottle or lid. 11. For the sample bottles that contain a preservative, take care to keep the preservation material in the container. 12. Immediately place all sample bottles on ice.

RBSD Water Quality Monitoring Program Updated June 2014 Page 4

13. Complete Chain of Custody form and take samples to contracted environmental laboratory as described in the OERP.

Following are allowable hold times for the sample bottles:

 Ammonia - 28 days (preserved and cooled)  Bacterial Indicator (enterococcus or fecal/total coliform) - 8 hours (preserved and cooled)  Biochemical Oxygen Demand - 48 hours (cooled)  pH Field Test - Immediate

DATE

State Water Resources Control Board 1001 I Street Sacramento, CA 95814

Subject: Technical Report for Sanitary Sewer Overflow Greater than 50,000 Gallons Event ID: XXXXXX

This submittal comprises the Sanitary Sewer Overflow (“SSO”) Technical Report (“Report”) that is required by State Water Resources Control Board (“SWRCB”) Order No.WQ 2013-0058- EXEC (“Order”). The Order requires each enrollee to submit an SSO Technical Report in the California Integrated Water Quality System (“CIWQS”) online SSO database within 45 calendar days of the SSO end date for any SSO in which 50,000 gallons or greater are spilled to surface waters.

This Report comprises the following sections:

1. Causes and Circumstances of the SSO 2. Agency’s Response to SSO 3. Water Quality Monitoring

1.0 CAUSES AND CIRCUMSTANCES OF THE SSO

A. Description of how and when the SSO was discovered.

B. Figure 1 shows the SSO failure point, appearance point(s), and final destination(s).

C. Methodology and data used to calculate the volume of the SSO and any SSO volume recovered.

Richardson Bay Sanitary District Technical Report for SSO over 50,000 gallons Event ID: XXXXX Page 2

D. Detailed description of the cause(s) of the SSO.

E. Copies of original field crew records used to document the SSO are included at the end of this Report.

F. The Order requests historical maintenance records for the failure location. The associated pipe segment cleaning and CCTV history is provided in Table 1.

Table 1. Maintenance Results for Pipe Segment XXXXX-XXXX Date Action: Clean or CCTV Summary of Findings

2.0 RBSD RESPONSE TO SSO

A. The following presents a chronology of all actions taken to terminate the SSO.

B. The actions described in 2A, above, followed the RBSD Sewer System Management Plan (“SSMP”) Overflow Emergency Response Plan. Specifically, the activities related to initial response, reporting, notifications and posting, and corrective measures were followed. The RBSD SSMP includes a Water Quality Monitoring Plan that includes requirements from the Order. RBSD completed water quality sampling within 48 hours after the end of the SSO, and submitted these samples for bacteriological and ammonia testing as required by the Order.

C. Final corrective action(s) completed and/or planned to be completed, including a schedule for actions not yet completed are described below.

Richardson Bay Sanitary District Technical Report for SSO over 50,000 gallons Event ID: XXXXX Page 3

3.0 WATER QUALITY MONITORING

A. Water quality sampling activities conducted, including analytical results and evaluation of the result, are as follows.

B. Figure 2 shows a location map showing water quality sampling points.

If you have further questions or would like additional information about this Technical Report, please contact me by phone at (XXX) XXX-XXXX or by email at XXXXX@XXXX

Sincerely,

Johnny Tucker District Manager Richardson Bay Sanitary District Overflow Emergency Response Plan APPENDICES

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Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

Appendix F Element 7 (FOG Control Program) Supporting Documents

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Appendix G Element 8 (System Evaluation and Capacity Assurance) Supporting Documents

This page left intentionally blank Section 4 Sewage Spill Reduction Action Plan - Volume III Capacity Assessment

Section 4 Capacity Assessment 4.1 Introduction 4.1.1 Purpose This portion of the SSRAP submittal presents the results of the collection system capacity assessment to comply with subsection IV.B.3 of the Order. This subsection of the Order requires that the agencies identify areas, sources, and quantities of infiltration/inflow (I/I) in the collection system; identify bottlenecks to conveying wet weather flows; and discuss the impact of flows from one agency to another and on SASM’s wastewater treatment plant (WWTP). This capacity assessment for SASM and its member agencies is based on flow monitoring data obtained during the 2008/09 and 2009/10 wet weather seasons and hydraulic modeling of the SASM conveyance system and key portions of the member agency collection systems. The capacity assessment has been used to develop a Capacity Assurance Plan as required under Section V.B of the Order (see Section 5 of this report) and to complete the Pump Station Reliability Certification for Peak Wet Weather Flows as required under Section III.C of the Order (see Section 2 of this report).

4.1.2 Requirements of the EPA Amended Order for Compliance The EPA Order, Section IV.B includes the following requirements: IV. COLLECTION SYSTEM ASSESSMENTS B. Capacity Assessment: 1. By October 15, 2008, SASM and the member agencies each shall install flow meters to identify average and peak dry and wet weather flow rates generated from the overall service area for each agency. The flow meters shall be capable of measuring a full range of flows, including peak flows under surcharge conditions. An agency may use temporary flow meters to fulfill these requirements. 2. By October 15, 2009, and each year thereafter, SASM and the member agencies shall each submit a report to EPA providing the results of collection system flow monitoring, including average dry weather flow and peak wet weather flow from each of the member agency collection system. 3. By October 15, 2010, SASM and the member agencies each shall complete an assessment and submit a report to EPA on collection system flows and hydraulic capacity. The assessments shall include flow measurements, visual observations of flow levels and predictive flow modeling as needed to complete a report that: a) Identifies areas, sources and quantities of significant inflow to the sewage collection system; b) Identifies areas, sources and quantities of significant infiltration to the sewage collection system; c) Identifies any bottlenecks in the collection system which lack sufficient capacity to convey sewage flows through the collection system and to the Sewerage Agency of Southern Marin Wastewater Treatment Plant during wet weather; and d) Provides a discussion of the impact of wet weather flow from one agency to another as well as the impact on the Sewerage Agency of Southern Marin Wastewater Treatment Plant.

October 2010 6. 4-1 Section 4 Sewage Spill Reduction Action Plan - Volume III Capacity Assessment

4.2 Current and Previous Flow Monitoring Flows in the SASM system are measured by permanent meters located at four of the SASM wastewater pump stations (Rosemont, Ricardo Road, Saltworks, and Trestle Glen) and at the SASM WWTP. A temporary wet weather flow monitoring program was conducted during the 2008/09 wet weather season in compliance with subsection IV.B.1 of the Order, and the results were summarized in the Annual Report on Flow Monitoring submitted to the EPA in October 2009. A more limited flow monitoring program was also conducted by SASM in the 2009/10 wet weather season to supplement and further confirm the data collected in 2008/09. The results of the 2009/10 flow monitoring are summarized in the Annual Report on Flow Monitoring (October 2010) submitted concurrently with this document. The flow monitoring results from both programs have been used to conduct the capacity assessment presented in this section. 4.3 Hydraulic Model The modeling conducted for this capacity assessment utilized InfoWorks CS™, a fully dynamic hydraulic modeling software program that has also been used for modeling of the Sausalito-Marin City Sanitary District system. The hydraulic model consists of a representation of the SASM conveyance system and key trunk sewers in the Mill Valley, HVSD, and RBSD collection systems, plus the sewer “subbasins” (called “subcatchments” in InfoWorks) that represent the flow from unmodeled sewers in the member agency collection systems that discharge to modeled sewers. Specifically, the modeled network includes all SASM gravity sewers, pump stations, and force mains; major gravity trunk sewers (typically 10-inch and larger) in the HVSD, Mill Valley, and RBSD collection systems (other agency collection systems include smaller diameter pipes only); and the four largest pump stations and associated force mains in the RBSD system. Figure 4-1 shows the modeled SASM conveyance system and flow monitoring sites, modeled member agency trunk sewers and pump stations, and the member agency service areas. As part of the development of the 2008/09 flow monitoring program, collection system maps available in GIS format were used to delineate sewer subbasins. Sewer subbasins define areas within each agency’s collection system that typically drain to a common point or several points in close proximity on SASM pipelines or member agency trunk sewers. Figure 4-2 through Figure 4-6 show the delineation of sewer subbasins and the wet weather flow monitoring sites for each of the agencies. A total of 36 flow monitoring sites, including permanent pump station sites, were included in the 2008/09 program; and 10 sites, including permanent pump station sites, were included in the 2009/10 program. Figure 4-7 shows an overall schematic diagram of the SASM system and subbasins. Data on the physical configuration of the modeled facilities were derived from maps and available record drawings and other information about the system. For each pipe, the model includes the pipe length, diameter, and upstream and downstream invert elevations, and default values for pipe friction factor and headloss coefficients. For each manhole, the model includes the manhole diameter and rim elevation. Physical dimensions are also included for overflow weirs and pump station wet wells. Additional information for modeling of the pump stations was obtained from available pump manufacturer’s information, pump curves, and actual operating data (e.g., pump set points and drawdown test results). The model computes the flow hydrographs from each sewer subbasin based on parameters that define its wastewater flow components (discussed in next section), and routes those hydrographs through the modeled system. Any capacity deficiencies in the system can be identified through the model results as areas of the system in which the model predicts significant pipe surcharge or potential overflows, or flows in excess of the rated capacity of modeled pump stations.

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Figure 4-1: SASM Modeled Conveyance System, Member Agency Service Areas, and Flow Monitoring Sites

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Figure 4-2: TCSD and Almonte Sewer Subbasins and Flow Monitoring Sites

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Figure 4-3: HVSD Sewer Subbasins and Flow Monitoring Sites

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Figure 4-4: Mill Valley Sewer Subbasins and Flow Monitoring Sites

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Figure 4-5: Alto Sewer Subbasins and Flow Monitoring Sites

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Figure 4-6: RBSD Sewer Subbasins and Flow Monitoring Sites

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Figure 4-7: SASM System Subbasin and Flow Meter Schematic

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4.4 Wastewater Flow Components Wastewater flows include three components: base wastewater flow (BWF), groundwater infiltration (GWI), and rainfall-dependent infiltration/inflow (RDI/I), as illustrated conceptually in Figure 4-8.

Figure 4-8: Wastewater Flow Components (Not to scale)

Rainfall

RDI/I Flow

BWF

GWI

Time (24 Hours)

BWF represents the sanitary and process flow contributions from residential, commercial, institutional, and industrial users of the system. BWF varies throughout the day, but typically follows predictable diurnal patterns depending on the type of land use. GWI is groundwater that infiltrates into defects in sewer pipes and manholes, particularly in winter and springtime in low-lying areas. GWI is typically seasonal in nature and remains relatively constant during specific periods of the year. However, rainfall clearly has long-term impacts on GWI rates in some areas, as evidenced by measurable increases in GWI after prolonged periods of rainfall. RDI/I is storm water inflow and infiltration that enter the system in direct response to rainfall events. RDI/I may enter the sewer system through direct connections (termed “inflow” sources) such as holes in manhole covers, cross-connections from storm drain systems, or illegally connected roof leaders or area drains; or, more commonly, through subsurface defects in sewer pipes, manholes, and service laterals (termed “infiltration” sources). RDI/I typically results in short term peak flows that recede relatively quickly after the rainfall ends. The magnitude of RDI/I flows are related to the intensity and duration of the rainfall, the relative soil moisture at the time of the rainfall event, and the condition of the sewers. It should be noted that the inflow and infiltration components of RDI/I cannot easily be distinguished through analysis of flow monitoring data alone, as some sources of rainfall-dependent infiltration, such as

October 2010 13. 4-10 Section 4 Sewage Spill Reduction Action Plan - Volume III Capacity Assessment defects in shallow pipes and service laterals, may result in very rapid flow increases and high peak flows in a manner similar to the response from direct inflow sources. Therefore, specific inflow and infiltration sources are best identified through field investigation techniques such as manhole and sewer inspections and smoke and dye testing. For this capacity assessment, wastewater flow components were quantified based on data collected during the 2008/09 and 2009/10 flow monitoring programs. Specifically, BWF was quantified based on flows on non-rainfall days not impacted by prior rainfall. As such, BWF may include some amount of GWI that occurs year-round or early in the wet weather season. Wet weather-related GWI and RDI/I were quantified based on the flow monitoring data during and following rainfall events. A unit hydrograph approach was used to represent RDI/I response as a function of rainfall for each metered subbasin (unmetered subbasins, generally very small areas, were assigned I/I parameters based on similar, nearby metered areas). Specifically, RDI/I response to rainfall events was quantified in terms of three sets of triangular unit hydrograph parameters that represent the volume percentage of rainfall that enters the system as RDI/I and the shape of the RDI/I hydrograph as a function of each hour of rainfall. The three unit hydrographs, illustrated in Figure 4-9, represent different types of response: fast, medium, and slow. By applying the RDI/I hydrograph parameters to a design rainfall event (discussed in next section), the predicted design RDI/I response for each area of the system can be estimated.

Figure 4-9: RDI/I Hydrograph Components

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4.5 Design Event Since flow response to wet weather events varies with storm rainfall (as well as other factors), quantifying I/I in the system and identifying hydraulic constraints must be referenced to a “design” condition or “design event.” In the case of SASM, the design event has been defined as the storm of January 25, 2008, a notable event in recent memory that resulted in high flows to the SASM WWTP and a major wet weather spill. Another recent large storm event that has been used by some agencies as a design condition, the storm of December 31, 2005, caused widespread surface flooding and drainage problems in many areas of Marin County, including the SASM service area; therefore, it was not considered appropriate for SASM for use in assessing wastewater system capacity. Rainfall amounts for the January 25, 2008 storm were obtained for two rain gauges in Mill Valley and one gauge maintained by TCSD at its district offices on Bell Lane. The design event rainfall pattern is depicted in Figure 4-10 for the TCSD and one of the Mill Valley rain gauge sites.

Figure 4-10: Design Rainfall Event

Based on available rainfall depth-duration-frequency statistics, the January 25, 2008 storm is estimated to have been an approximate 20-year return frequency event in the Mill Valley area for 24-hour duration, and a 5- to 10-year frequency event for shorter (e.g., 4- to 6-hour) durations. Therefore, this storm is considered an appropriate event for assessment of both collection system and WWTP capacity. The I/I estimates and system capacity analysis results presented in the remaining sections of this Capacity Assessment are based on the analysis of the system, using the hydraulic model, for the design wet weather event.

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4.6 Areas, Sources and Quantities of Inflow and Infiltration This section discusses the areas, likely sources, and estimated quantities of I/I in the SASM and member agency collection systems. Through the model calibration process, flow estimates were developed for each sewer subbasin. Table 4-1 presents flows for the sewer subbasins, including average dry weather BWF, peak RDI/I, and model- computed design event peak wet weather flow and associated peaking factor. Because it is difficult to separate out, wet season GWI, if any, is generally included in the BWF and RDI/I estimates, with the exception of subbasin RB-TGPS. This subbasin was created to account for additional flows measured at the Trestle Glen Pump Station that could not be accounted for in the upstream metered areas that are tributary to the pump station. It is believed that this additional flow may reflect tidal influence and groundwater infiltration in low lying areas of this portion of the RBSD system. It should also be noted that I/I into SASM pipelines cannot be specifically isolated and may be included in the estimated I/I for some of the member agencies. This is especially true for Almonte, as all of the flow meters used to isolate Almonte flows were installed on SASM pipelines. The SASM pipelines upstream of the Almonte flow meters comprise 15 to 20 percent of the total length of sewers tributary to these meters. These are some of the oldest pipes in the SASM system and may be subject to significant infiltration.

Table 4-1: Estimated Wastewater Flows for Sewer Subbasins

2 3 4 1 ADWF Peak RDI/I PWWF 5 Subbasin WWPF (mgd) (mgd) (mgd) TCSD-7 0.036 0.49 0.53 15 ALM200,3006 0.059 0.82 0.88 15 ALM4006 0.010 0.14 0.15 15 ALM500,6006 0.047 1.08 1.13 24 ALM700,8006 0.025 0.36 0.39 16 HV100 0.028 0.91 0.93 33 HV200 0.015 0.32 0.33 21 HV300 0.014 0.23 0.25 18 HV400 0.065 1.09 1.15 18 HV500 0.056 1.74 1.76 32 MV-1 0.037 0.40 0.44 12 MV-2A 0.030 0.85 0.88 29 MV-2B6 0.011 0.16 0.17 15 MV-2C6 0.010 0.16 0.17 17 MV-3 0.053 1.57 1.63 31 MV-4A 0.226 1.59 1.72 8 MV-4B 0.065 1.40 1.47 23 MV-5 0.054 0.66 0.72 13 MV-6 0.088 0.99 1.03 12 MV-7 0.024 0.30 0.32 14 MV-8A 0.075 0.88 0.96 13 MV-8B 0.092 0.93 1.02 11 MV-9 0.064 0.49 0.55 9

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2 3 4 1 ADWF Peak RDI/I PWWF 5 Subbasin WWPF (mgd) (mgd) (mgd) MV-106 0.207 0.61 0.85 4 MV-EK 0.100 1.26 1.37 14 ALT1006 0.006 0.09 0.10 15 ALT200,300 0.056 1.54 1.60 29 RB-BG 0.068 1.18 1.26 18 RB-DM 0.043 0.59 0.64 15 RB-GB 0.005 0.03 0.03 6 RB-HP 0.050 0.59 0.65 13 RB-HT 0.026 0.61 0.64 24 RB-RR NORTH 0.135 1.19 1.34 10 RB-RR SOUTH 0.132 0.84 0.99 7 RB-RR WEST 0.030 0.16 0.20 7 RB-SW-EAST 0.253 1.44 1.75 7 RB-SW WEST 0.046 1.75 1.79 39 RB-TG 0.026 0.46 0.49 19 RB-TGPS7 0.100 0.13 0.23 N/A Notes: 1. Flows for some small and/or adjacent subbasins are combined. 2. ADWF = Average Dry Weather Flow (based on non rainfall periods during January 2009 and 2010). 3. RDI/I = rainfall-dependent I/I (for design event). 4. PWWF = Peak Wet Weather Flow (for design event). 5. WWPF = Wet Weather Peaking Factor (ratio of design event PWWF to ADWF). 6. Flow estimates for these subbasins were derived from meters installed on SASM lines and may therefore include flow (infiltration and inflow) from SASM pipelines as well as member agency sewers (see discussion in the paragraph preceding this table). 7. Represents unidentified flow in vicinity of Trestle Glen PS.

As part of the condition assessment work summarized in Section 2, the SASM agencies have conducted extensive CCTV inspection of sewers in their collection systems. The inspections identified defects that are common to most sewer systems in the San Francisco Bay Area that experience significant I/I during wet weather, including cracks in pipes, offset and open joints, and root intrusion. It can be assumed that similar defects in laterals are also sources of infiltration in these systems. In 2009, SASM conducted a limited smoke testing program in two areas of HVSD and one area of Mill Valley as part of its Supplemental Environmental Project to provide grants and loans for private lateral replacement. The tested areas, comprising approximately 19,000 feet of sewer mains, were portions of subbasins identified as having high wet weather peaking factors based on the 2009 wet weather flow monitoring program. The smoke testing resulted in 18 observations of smoke coming from potential pipeline defects or inflow connections, including one storm drain cross-connection, one roof leader, six missing or defective cleanout caps, eight defective laterals, and two sources that could not be determined. Based on these very limited results, it can be concluded that most sources of I/I in the SASM systems are likely defective sewer pipes, laterals, and cleanouts; but some direct inflow sources (storm drain cross connections and directly connected roof and area drains) are also likely to exist.

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4.7 Hydraulic Bottlenecks The hydraulic model was used to assess the performance of the SASM and member agency collection systems under peak wet weather flow conditions. The model was calibrated using the flow monitoring data collected during the 2008/09 and 2009/10 flow monitoring programs to determine the components of wastewater flows for each sewer subbasin, as described in subsection 4.4. The model was then run for the design event to identify bottlenecks in the system. Bottlenecks represent pipelines or pump stations that have insufficient capacity to convey the peak wet weather flows from the design event, resulting in model-predicted overflows or significant upstream surcharging. The model software was used to display hydraulic profiles of the modeled lines, indicating the relative depth of flow with respect to the sewer pipes and ground surface. Areas where the hydraulic gradeline (HGL) or water surface is close to or potentially above the ground (for gravity sewers) indicate hydraulic bottlenecks due to localized or downstream capacity deficiencies. It should be noted that the location of the surcharge or potential overflow is not necessarily the location of the bottleneck but may be caused by a backwater effect from a hydraulic bottleneck further downstream. The relative slope of the HGL is an indicator of the severity of the capacity deficiency. The following subsections describe the identified hydraulic bottlenecks in the SASM system and modeled portions of the member agency collection systems. The bottlenecks are illustrated on the hydraulic profiles presented in the figures. In the profiles, the green line represents the ground surface, the pink lines represent the pipe, the blue line is the water surface or HGL, and the vertical black lines are manholes or other structures. The node (manhole) IDs and distance along the pipe are presented underneath the profiles. It should be noted that the conditions displayed on the profiles, as simulated by the hydraulic model, are not necessarily proof of any or all of the hydraulic conditions that actually occurred in the SASM system during the January 25, 2008 storm event (in fact, the agencies reported no collection system overflows associated with that event), or any or all conditions that would actually occur during other large wet weather events. Rather, the model represents a best-available assessment of areas of the system that are potentially at risk for wet weather overflows due to insufficient capacity. Other mitigating factors, such as the availability of storage capacity in unmodeled upstream pipes, may prevent actual overflows from occurring.

4.7.1 SASM System The SASM conveyance system consists of three major sections: the Southside system, Northside system, and Richardson Bay system. Each of these systems is described briefly below, followed by a discussion of the identified hydraulic bottlenecks. Southside System The Southside system includes sewers that convey flow from TCSD, Almonte, HVSD, and the majority of Mill Valley to the SASM WWTP. Flows from TCSD and the southern portion of Almonte are conveyed via a 12-inch gravity sewer in Almonte Boulevard (SASM “upper T line”) to the SASM Rosemont Pump Station, from where they are pumped through a force main directly to the WWTP. (Note: This new force main was constructed in 2007. Prior to that time, the Rosemont PS force main discharged to a gravity sewer (SASM “lower T line”) that paralleled the Almonte trunk sewer in Almonte Boulevard and connected into it just upstream of Stadium Way.) The remaining flows from Almonte and flows from portions of HVSD are tributary to 12- and 15-inch trunks sewers that flow northwest along Almonte Boulevard (SASM Almonte Trunk Sewer or “A line”), through Tamalpais High School, and along Miller Avenue (SASM “M line”) to the junction with SASM’s 30-inch Sycamore trunk sewer just west of Reed Street. Flows from the major portion of Mill Valley and the remainder of HVSD flow southeast along Miller Avenue in a 21-inch sewer to the same junction with the Sycamore trunk sewer.

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The Sycamore trunk sewer (SASM “S line”) runs northeast through an easement in Sycamore Park and then east along Sycamore Avenue to the WWTP. The Southside system has historically experienced severe wet weather issues, and a number of previous projects have provided capacity relief to the system. These projects included a relief sewer located east of Tamalpais High School (SASM Almonte Relief or “AR line”), constructed in 1986, that allows flows that surcharge the trunk sewer in Almonte Boulevard to be diverted over a weir to a 15-inch pipe that discharges to SASM’s Camino Alto Pump Station (CAPS). (Note: An overflow weir to the Almonte Relief line was also constructed from the lower T line at that time. However, although normal flows are no longer conveyed through the lower T line, the line has not been plugged off, so it is still possible for flow to back up into the line from the Almonte trunk sewer and potentially overflow to the Almonte Relief line.) Another weir overflow with a diversion sewer to the CAPS is located further downstream at the intersection of Miller Avenue and Camino Alto. The CAPS was upgraded in 1998 to increase pumping capacity for wet weather flows. Flows from the CAPS are conveyed directly to the WWTP through a force main and gravity line. Another relief line (21-inch) (SASM “SR line”), also constructed in 1986, parallels the 30-inch Sycamore trunk sewer from Camino Alto to the WWTP. Although the previous Southside system improvements have largely eliminated the historical overflows in this area, the hydraulic modeling indicates that the high wet weather flows may still pose a risk of overflow, particularly at the upstream end of the Almonte trunk sewer near Helen Avenue (see Figure 4-11). The 30-inch Sycamore trunk sewer is also a known capacity restriction in the Southside system. This sewer is laid on a very flat slope, and does not have sufficient capacity to convey peak wet weather flows without surcharging. The backwater impact of the surcharged trunk extends upstream into the sewers in Miller Avenue (see Figure 4-12), both south toward Camino Alto and north toward Montford Avenue. Northside System The Northside system includes sewers that convey flow from Alto and the northeastern portion of Mill Valley south to the WWTP. The system includes a 12-inch trunk sewer located on East Blithedale and Ashford Avenues (SASM “SM line”) that conveys primarily Alto and some Mill Valley flows west to Lomita Drive, where they discharge to SASM’s Sutton Manor Pump Station (SMPS). Another sewer collects flows tributary to Lomita Drive north of Ashford. The SMPS is a lift station that discharges into a 15-inch trunk sewer in Lomita Drive that runs southwest to Camino Alto, transitioning to a 21-inch pipe at East Blithedale Avenue (SASM “L line”). The 21-inch line connects to the Sycamore trunk sewer at Sycamore Avenue. The sewer in Ashford Avenue was replaced in 1990 (it was previously 8-inch diameter) due to overflows that had occurred in the area of Tower Drive and Dorset Lane. The most downstream segment of the 8- inch pipe, just upstream of Lomita Drive, is very deep, so that line was not replaced at the time; rather, a parallel 12-inch pipe was installed at a higher elevation to allow the 8-inch pipe to overflow when the flow level reached approximately 4 feet above the 8-inch pipe crown at its upstream end. The 8-inch pipe was subsequently pipe burst to a 14-inch HDPE pipe (approximate 12.3-inch inside diameter) in about 2001. The current hydraulic modeling indicates that the Ashford line still represents a capacity restriction and poses a risk of overflow under peak wet weather conditions (see Figure 4-13). Although the 12-inch overflow line does provide some relief, it is too high to reduce the surcharge enough to prevent the upstream backwater from potentially extending almost to the ground elevation under a design wet weather flow event. The wet weather flows generated upstream appear to be higher than they were originally estimated when the 1990 relief project was constructed.

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Figure 4-11: Hydraulic Profile of SASM Almonte Trunk Sewer (Design Event PWWF)

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Figure 4-12: Hydraulic Profile of SASM Miller Avenue and Sycamore Trunk Sewers (Design Event PWWF)

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Figure 4-13: Hydraulic Profile of SASM Sutton Manor System Trunk Sewers (Design Event PWWF)

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Due to the high flows generated upstream, the SMPS also does not have sufficient firm capacity (but does have adequate total capacity) to convey the design event peak wet weather flows (see Section 2, Pump Station Reliability Certification for Peak Wet Weather Flows, for further discussion). Richardson Bay System The SASM facilities serving RBSD consist of three pump stations (Trestle Glen, Salt Works, and Ricardo Road) that discharge to a common force main (14- through 21-inch) that extends east parallel to Tiburon Boulevard and along Belvedere Drive, south along the Highway 101 east frontage, and then east across the highway and along Hamilton Drive to the SASM WWTP. Approximately 1,000 feet east of the WWTP, flows from the Enchanted Knolls area of Mill Valley discharge via a 12-inch sewer into the last (downhill) segment of the force main. There are no identified capacity deficiencies in the Richardson Bay portion of the SASM system.

4.7.1 Mill Valley Collection System The major facilities in the City of Mill Valley collection system include a 15- and 18-inch trunk sewer that extends southwest along Miller Avenue from Throckmorton Avenue to Montford Avenue/La Goma Street, connecting into the 21-inch SASM sewer in Miller Avenue at its downstream end. A 10- and 18- inch Mill Valley trunk sewer also parallels the 21-inch SASM L line in Camino Alto from East Blithedale Avenue to Sycamore Avenue. A 15-inch sewer in Sycamore Avenue connects to the 30-inch SASM trunk near Nelson Avenue. The hydraulic modeling indicates that the 15-inch trunk sewer in Miller Avenue from Millwood Street to Willow Street is undersized for the projected peak wet weather flows, resulting in a potential risk of overflows in the vicinity of Millwood Street (see Figure 4-14). The two most downstream 21-inch segments in the profile shown in the figure are SASM lines that are surcharged under peak wet weather conditions due to backwater from the 30-inch Sycamore trunk.

4.7.2 Richardson Bay Sanitary District Collection System The modeled facilities in the RBSD collection system include the Hawthorne Terrace, Del Mar, and Belveron Gardens pump stations and downstream force mains and gravity sewers that convey flow to the SASM Trestle Glen Pump Station. The system also includes gravity sewers that convey flow to the Salt Works Pump Station from the northeast and southwest, and to the Ricardo Road Pump Station from the north and southeast. The RBSD Harbor Point 3 pump station serves the southern portion of the district and pumps flow through a force main in Seminary Drive into the gravity sewer that discharges to the Ricardo Road Pump Station from the south. Although the modeling identified some sewers in the RBSD system that may be surcharged under peak design event wet weather flow conditions, none of the surcharge is severe enough to present a significant risk of overflow. The Belveron Gardens Pump Station (BGPS) has been identified as not having sufficient firm capacity to convey the predicted peak wet weather flows based on the calibration of the hydraulic model to 2009 flow monitoring data. However, the District completed a sewer rehabilitation project in the BGPS tributary area this past year that included rehabilitation or replacement of over 7,000 feet of sewer mains, lower laterals, and some upper laterals. This project comprised over 25 percent of the total area tributary to the pump station in a low-lying area believed to be a significant source of infiltration. Assuming that the area rehabilitated contributed 50 percent of the total I/I in the pump station tributary area, and that the rehabilitation work reduced the I/I by 50 percent, resulting in an overall 25 percent I/I reduction in the pump station tributary area, the pump station should now have adequate firm capacity (proposed follow-up monitoring to confirm the post-rehabilitation flows is discussed in under Pump Station Reliability Certification for Peak Wet Weather Flows in Section 2 of this report).

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Figure 4-14: Hydraulic Profile of Mill Valley/SASM Miller Avenue Trunk Sewer (Design Event PWWF)

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4.7.3 Homestead Valley Sanitary District Collection System The HSVD collection system discharges into SASM’s Miller Avenue trunk sewer at several locations. The main trunk sewer in the District’s collection system extends west along Evergreen Avenue from Miller Avenue to Melrose Avenue, with a branch sewer extending south along Scott Street to Laverne Avenue. Over the past few years, most of the Evergreen Avenue trunk sewer has been replaced with 12- inch PVC and 14-inch HDPE (approximate 12.3-inch inside diameter) pipe. The hydraulic modeling indicates that the lower portion of the Evergreen Avenue trunk sewer from east of Linden Avenue to Miller Avenue is undersized for the projected design event peak wet weather flows, resulting in a potential risk of overflows (see Figure 4-15). The potential surcharge is increased due to backwater from SASM’s Miller Avenue trunk sewer. 4.8 Impact to SASM from Member Agency Collection Systems The peak wet weather flow to the SASM WWTP for the design event is predicted by the model to be approximately 31 mgd. This is very close to the original design peak wet weather flow capacity of the WWTP of 32.7 mgd and slightly lower than the peak influent of flow of 33 mgd that was recorded at the plant during the January 25, 2008 storm event (the actual influent flow may have been slightly lower based on 2009 influent meter calibration records). To validate the predicted modeled peak flow, the model was also run for a synthetic rainfall event assumed to have a total 24-hour rainfall amount of 4.82 inches, representing a 20-year return frequency event for the Mill Valley area1, and an SCS Type IA temporal rainfall distribution. (Note: for this model run, the rainfall was assumed to be the same throughout the SASM service area. While this assumption does not reflect the actual variation of rainfall with location and elevation, it provides a reasonable approach for assessing the total flow in the system.) The peak flow to the WWTP based on the synthetic 20-year return frequency rainfall event was approximately 32 mgd, again very close (within 3 percent) to the original WWTP design flow and the model-predicted and recorded flow for the January 25, 2008 event. These results indicate that the flows to the SASM WWTP are similar to those projected during the design of the system, and that overall flows do not appear to have changed significantly over the past 25 to 30 years. However, the peak wet weather flows in the SASM system are still very high, representing a design event peak flow to the WWTP of about 15 times summertime average dry weather flow. These high peak flows result in surcharging of SASM pipelines and, in some cases, adverse backwater impacts on member agency sewers. Furthermore, it appears that the distribution of flows within the system may be different than originally estimated, resulting in more severe capacity deficiencies in some areas of the system than had been previously calculated. Flows from Alto, Almonte, HVSD, and Mill Valley have the most significant capacity impacts on the SASM system, as indicated by the areas of predicted high surcharge during peak wet weather conditions. Table 4-2 summarizes the contribution by agency to the average dry weather and total design event peak wet weather flow to the SASM WWTP. Note that in this table, the peak flows by agency represent the sum of the subbasin peak flows, which is about 5 percent higher than the modeled peak flow to the WWTP due to flow attenuation and existing capacity restrictions in the system. It should also be noted that I/I into SASM pipelines cannot be specifically isolated and may be included in the estimated flow values for some of the member agencies, most notably Almonte. As noted previously, all of the flow meters used to isolate Almonte flows were installed on SASM pipelines. The SASM pipelines upstream of the Almonte flow meters comprise 15 to 20 percent of the total length of sewers tributary to these meters and may be subject to significant infiltration.

1 California Department of Water Resources precipitation depth-duration-frequency data for Mill Valley (Table C-1, Sewerage Agency of Southern Marin, Sewer System Evaluation Survey, Black & Veatch, 1980)

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Figure 4-15: Hydraulic Profile of HVSD Evergreen Avenue Trunk Sewer (Design Event PWWF)

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Table 4-2: Flows from Member Agencies 2 3 1 ADWF Percent of PWWF Percent of Overall Agency 4 (mgd) Total (mgd) Total WWPF TCSD 0.04 1.5% 0.5 1.6% 15 Almonte 0.14 5.7% 2.6 7.9% 18 HVSD 0.18 7.2% 4.4 13.6% 25 Mill Valley 1.14 46.0% 13.3 40.9% 12 Alto 0.06 2.5% 1.7 5.2% 27 RBSD 0.91 37.1% 10.0 30.8% 11 Notes: Flows based on sum of individual subbasin flows from Table 4-1. 1. Flow estimates for all or portions of some agencies, most notably Almonte, were derived from meters installed on SASM lines and may therefore include flow (infiltration and inflow) from SASM pipelines as well as member agency sewers (see discussion in the paragraph preceding this table). 2. ADWF = Average Dry Weather Flow during flow monitoring periods (January 2009 and 2010) 3. PWWF = Peak Wet Weather Flow for design event 4. WWPF = Wet Weather Peaking Factor (ratio of design event PWWF to ADWF)

The SASM WWTP can handle a PWWF of approximately 24.7 mgd (limited by effluent discharge and outfall capacity), with flows exceeding this amount diverted to an on-site equalization storage basin. The equalization pond was expanded in 2008 following the overflow events that occurred in January of that year. The pond capacity was increased to 3.3 million gallons (MG) through that project. The estimated overflow equalization volume required for a 20-year design event based on the modeling conducted for this capacity assessment ranges from 2 to 3 MG, indicating that the pond would have sufficient capacity to handle the flows from an event comparable to the January 25, 2008 storm assuming similar antecedent conditions as those that occurred during that period.

October 2010 20. 4-24 Section 5 Sewage Spill Reduction Action Plan - Volume III Capacity Assurance Plan

Section 5 Capacity Assurance Plan 5.1 Introduction 5.1.1 Purpose This portion of the SSRAP submittal presents the proposed Capacity Assurance Plan to comply with subsection V.B of the Order. This subsection of the Order requires that the agencies develop short- and long-term capital improvement plans that provide for improvements to the system as needed to ensure that there is sufficient capacity to convey peak wet weather flows to the SASM WWTP without overflows from collection system pipelines or pump stations or bypasses of flow from the SASM WWTP.

5.1.2 Requirements of the EPA Amended Order for Compliance The EPA Order, Section V.B includes the following requirements: V. CAPACITY ASSURANCE B. Capacity Assurance Plan: 1. By October 15, 2010, SASM and the member agencies shall propose and schedule short-term (five years and less) and long-term (beyond five years) improvements identified from the condition and capacity assessments completed in Paragraph IV. The plan(s) shall consider the effects that existing capacity limitations and future upgrades may have on the Sewerage Agency of Southern Marin Wastewater Treatment Plant and other collection systems. The plan(s) should be sufficient to eliminate spills from the collection systems and wastewater treatment plant during peak wet weather. The plan may be submitted along with the plan that addresses the requirements under Paragraph VI.A for repair, rehabilitation and replacement of sewer pipes. 2. By October 15, 2013, SASM and the member agencies shall complete short-term improvements pursuant to Paragraph V.B.1. The improvements shall address preliminary I&I control, conveyance of peak flows, storage of peak flows, and improvements to treatment plant capacity. 3. SASM and the member agencies shall implement the long-term improvements pursuant to Paragraph V.B. 1 in accordance with the approved schedule. The improvements shall address long-term I&I control, rehabilitation and repair of sewer mains, and as needed, rehabilitation of private laterals.

5.2 Basis of Capacity Assurance Plan The Capacity Assurance Plan is based on the results of the capacity assessment presented in the previous section of this report. The capacity assessment estimated the peak wet weather flows in the SASM conveyance system and member agency collection systems for a design peak wet weather flow event, considered to be equivalent to an approximate 20-year frequency, 24-hour rainfall event with a peak 4- to 6-hour rainfall comparable to a 5- to 10-year frequency return period. The goal of the Capacity Assurance Plan is to alleviate capacity deficiencies in the system that pose the most significant risk of overflows under such rainfall conditions. It should be emphasized that the identification of potential locations of overflows and predictions of overflow reduction or elimination are based on the estimated flow conditions as simulated in the hydraulic model, and reflect the relative accuracy and limitations of the model as described in Section 4.

October 2010 21. 5-1 Section 5 Sewage Spill Reduction Action Plan - Volume III Capacity Assurance Plan

For purposes of identifying needed improvements, any model-predicted surcharge within one foot of the ground surface or HGL exceeding the ground surface elevation, flow exceeding the capacity of system pump stations, or flow exceeding the hydraulic capacity of the plant and available equalization storage, are considered to represent unacceptable risks of overflow that should be addressed as part of the short- term capital improvement plan (CIP). In the long-term, the goal of the agencies is to further reduce system surcharge and ensure that all pump stations are equipped with firm capacity (capacity with the largest pumping unit out of service) to convey design event peak wet weather flows. Options for provided needed capacity assurance include: x Replacement of sewer pipelines with larger lines x Construction of new relief sewer pipelines x Expansion of pump station capacity x Diversion of flows from capacity-deficient pipelines or pump stations to other existing facilities with available capacity x Construction of upstream flow storage facilities x I/I reduction in member agency collection systems Construction of upstream storage basins in the collection systems is not considered a viable alternative for the SASM agencies because of the highly developed service area and challenging topography. I/I reduction is considered the optimal solution but may require a longer timeline to implement and a program that involves rehabilitation of sewer laterals on private property as well as public sewer mains. Therefore, the Capacity Assurance Plan includes some conveyance improvements to be implemented in the short-term to address the most severe capacity issues in the system, combined with I/I reduction efforts to meet the agencies’ long-term capacity assurance goals. 5.3 Proposed Short-term Capacity Improvement Projects The proposed short-term capacity improvement projects are described below.

5.3.1 SASM Projects The following projects are proposed for the SASM system: x Construct an overflow flow diversion from the Almonte trunk sewer just downstream of Rosemont Avenue to the TCSD trunk sewer just upstream of the Rosemont Pump Station (there may be an existing connection in this area that could be used or modified for this purpose). This diversion would significantly reduce the predicted surcharge and risk of overflow in the Almonte trunk sewer. The Rosemont Pump Station would still have adequate firm capacity to handle the increased flows during peak flow periods. x Lower the weirs on the overflow connections to the Almonte relief sewer and the Miller/Camino Alto diversion to the Camino Alto Pump Station (CAPS). Lowering the weirs at these locations would allow diversion of more flow to the Almonte relief sewer and to the CAPS. This would reduce the flows to the Miller Avenue and Sycamore trunk sewers, maximize use of existing CAPS wet weather pumping capacity, and thereby minimize risk of overflows in the Almonte and Miller Avenue trunk sewers. x Upgrade Sutton Manor Pump Station to provide 1,300 gpm (1.87 mgd) firm capacity for design event PWWF (see discussion in Section 2, Pump Station Reliability Certification for Peak Wet Weather Flows).

October 2010 21. 5-2 Section 5 Sewage Spill Reduction Action Plan - Volume III Capacity Assurance Plan x To alleviate the potential risk of overflow from the Ashford Avenue/East Blithedale Avenue trunk sewer (SASM SM line), Alto Sanitary District would need to conduct sewer rehabilitation (see subsection on Alto Projects below) in order to lower the predicted HGL to more than one foot below the ground surface under design event peak wet weather flow conditions.

5.3.2 Mill Valley Projects The following project is proposed for the Mill Valley system: x Construct a high overflow diversion to divert flow from the 18-inch trunk sewer in Miller Avenue at Millwood Street to the parallel 8-inch sewer. This project would address the potential overflow. and significantly reduce the predicted surcharge, in the 15-inch trunk sewer between Millwood Street and Willow Street.

5.3.3 HVSD Projects The following project is proposed for the HVSD system: x Perform sewer system rehabilitation in Subbasin HV500 sufficient to reduce I/I by 10 percent (or sufficient rehabilitation in Subbasins HV300, 400, and/or 500 to achieve an equivalent amount of I/I reduction). Rehabilitation of approximately 20 percent of the sewers and associated lower laterals in Subbasin HV500 (~5,200 feet) would be required (this assumes that a 50 percent reduction in I/I can be achieved through rehabilitation of mainlines and lower laterals). This project would reduce the predicted surcharge in the Evergreen Avenue trunk sewer to about 2 feet below the ground under design event peak wet weather flow conditions.

5.3.4 Alto Projects The following project is proposed for the Alto system: x Reduce I/I by approximately 10 percent in the Alto subbasins tributary to the Ashford Avenue trunk sewer by rehabilitating or replacing approximately 20 percent (~2,600 feet) of the sewers and associated lower laterals in Subbasins ALT200 and ALT300 (this assumes that a 50 percent reduction in I/I can be achieved through rehabilitation of mainlines and lower laterals). This project would further alleviate the surcharging in the Ashford/East Blithedale trunk sewer by lowering the model- predicted HGL to about 2 feet below ground, as well as reduce the surcharge in the relatively shallow SASM trunk sewer in Lomita Drive downstream of Sutton Manor Pump Station.

5.3.5 Smoke Testing All agencies will conduct smoke testing in subbasins with wet weather peaking factors greater than 20 to identify and eliminate direct inflow connections, including storm drain cross-connections; open or defective cleanouts; manholes subject to surface inflow through covers or defective frames; and roof leaders and area drains that are directly connected to the sanitary sewer system.

5.3.6 Flow Monitoring Projects that involve I/I reduction goals would include follow-up flow monitoring to verify that the anticipated I/I reductions have been achieved. If the results indicate that the I/I reduction goals have not been met, then more extensive rehabilitation would be undertaken or other improvements (e.g., construction of relief sewers) may be needed to provide the required capacity assurance measures. 5.4 Proposed Long-Term Capacity Assurance Plan The SASM agencies’ long-term capacity assurance plan involves further I/I reduction in the system to further reduce surcharge under peak wet weather flow conditions and reduce flows to the WWTP. I/I reduction would be achieved through targeted sewer rehabilitation in subbasins identified as having high wet weather flow contributions, and would be coordinated with infrastructure renewal needs identified

October 2010 21. 5-3 Section 5 Sewage Spill Reduction Action Plan - Volume III Capacity Assurance Plan through sewer system inspection and condition assessment findings (see Section 6, Sewer Repair, Rehabilitation, and Replacement Plan). The SASM agencies plan to achieve these I/I reduction goals through a combination of targeted mainline and manhole repairs, rehabilitation, and replacement; some lower lateral rehabilitation and replacement in conjunction with mainline work; and potential rehabilitation incentives and additional regulations for private laterals. Progress in achieving flow reductions in the system would be evaluated through annual review of WWTP influent flow records and periodic (approximately every five years) temporary flow monitoring programs conducted in the collection system in areas where rehabilitation work has been conducted. 5.5 Capital Improvement Program The estimated costs and proposed schedule for the short-term capacity assurance plan projects described above are presented in Table 5-1. Long-term I/I reduction projects are included in the Sewer Repair, Rehabilitation, and Replacement Plan presented in Section 6.

Table 5-1: Short-term (5-Year) Capacity Assurance Plan Responsible Est. Capital Project Agency Cost1 Schedule Overflow diversion from Almonte trunk to SASM $53,000 FY2012 Rosemont Pump Station Lower weirs at existing Almonte trunk SASM $33,000 FY2013 overflow diversions Sutton Manor PS pump upgrade SASM TBD FY2015 Overflow diversion to 8-inch sewer in Mill Valley $37,000 FY2012 Miller Avenue at Millwood St. I/I reduction in Evergreen Ave. trunk HVSD $1,320,000 FY2012-2015 sewer tributary area I/I reduction in East Blithedale Ave./Ashford Ave. trunk sewer tributary Alto $475,000 FY2012-2015 area Almonte $9,000 FY2012-2015 Alto $7,000 FY2012-2015 Smoke testing in high I/I subbasins3 HVSD $22,000 FY2012-2015 Mill Valley $26,000 FY2012-2015 RBSD $21,000 FY2012-2015 1. Costs are presented in 2010 dollars and include allowances for construction contingencies, technical services, and administration. 2. Estimated cost to be determined based on a planned predesign study to determine most viable approach for upgrading the pump station (see discussion in Section 2). 3. Subbasins with wet weather peaking factors greater than 20. Cost based on $0.50/ft. for smoke testing.

October 2010 21. 5-4 Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

Appendix H Element 9 (Monitoring, Measurement & Modifications Placeholder for Future Supporting Documents

This page left intentionally blank Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

Appendix I Element 10 (SSMP Program Audits) Supporting Documents

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Richardson Bay Sanitary District Change Log

Richardson Bay Sanitary District SSMP Change Loog

SSMP Change Authorized Date Description of Change/Revision Made Element by

4/29/2019 Acronyms Removed Acronyms & Terms that aree not used in District Manager &Terms document 4/29/2019 All Sections Removed reference to RWQCB SSMP Guidelines District Manager 4/29/2019 Element 2 Updated District contact information added to District Manager appendix. 4/29/2019 Element 4 Updated all sections to reflect current practices, as District Manager existing language was outdated. There were no substantive changes in the overall approach. Updated budget added to appendix. 4/29/2019 Element 4 Updated repair and replacement language to District Manager reflect that a substantial length of existing VCP pipe has been replaced, supporting a change in approach for future inspections and repairs. 4/29/2019 Element 4 Expanded training section. District Manager 4/29/2019 Element 6 Minor changes to OERP language. Alsso updated District Manager SWRCB contact information and District contact information. Updated OERP added to appendix. 4/29/2019 Element 7 Updated number of grease interceptors. District Manager 4/29/2019 Element 8 Provided update on Belveron Gardens pump District Manager station, which was previously identified as having potential capacity needs but performed without SSOs during the February 13, 2019 wet weather event. 4/29/2019 Element 9 Minor changes to performance indicators and District Manager updated table showing 5‐year trend in SSOs. 4/29/2019 Element 10 Minor changes to wording and reference to recent District Manager SSMP audits. Updated appendix to include recent audits and this Change Log. 4/29/2019 Element 11 Minor changes to wording to improve description District Manager of public interactions as related to SSMP development and implementation.

Appendix J

Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

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Richardson Bay Sanitary District SSMP Audit Report Form

Audit Period Covered: Month day, Year through Month day, Year Audit completed by: Name of firm or person on MM/DD/YYYY

Introduction Yes No

Is the current system description complete and up to date? Are all infrastructure statistics current and complete?

Discussion:

Element 1 – Goals Yes No

A Are the goals stated in the SSMP still appropriate and accurate?

Discussion:

Element 2 -- Organization Yes No

A Is the Contact Information current?

B Is the Sanitary Sewer Overflow Responder List current?

C Is the Organization Chart in Figure 2-1 of the SSMP current?

D Are the position descriptions an accurate portrayal of staff responsibilities?

E Is the chain of communication for reporting and responding to SSOs accurate and up-to-date?

Discussion:

Richardson Bay Sanitary District 1 2012-13 SSMP Audit Element 3 – Legal Authority Yes No

Does the SSMP contain current references to the District’s Code documenting it’s legal authority to:

A Prevent illicit discharges?

B Require proper design and construction of sewers and connections?

C Ensure access for maintenance, inspection, or repairs for portions of the lateral owned or maintained by the District?

D Limit discharges of fats, oil and grease?

E Enforce any violation of its sewer ordinances?

F Were any changes or modifications made in the past year or since the last SSMP audit to District Ordinances, Regulations, or standards?

Discussion:

Element 4 – Operations and Maintenance Yes No

Collection System Maps

A Does the SSMP reference the current process and procedures for maintaining the District’s sanitary sewer system maps?

B Are the District’s wastewater collection system maps complete, current, and sufficiently detailed?

Prioritized Preventive Maintenance

C Does the SSMP describe current preventive maintenance activities and the system for prioritizing the cleaning of sewer lines?

D Based upon the SSO information in CIWQS and the Annual SSO Report, are the District’s preventive maintenance activities sufficient and effective in minimizing SSOs and blockages?

Richardson Bay Sanitary District 2 2012-13 SSMP Audit Element 4 – Operations and Maintenance Yes No

Rehabilitation and Replacement Program

E Is there an ongoing condition assessment program sufficient to rank the condition of sewer pipes and schedule rehabilitation? Are the current components of this program documented in the SSMP?

F Does the rehabilitation and replacement plan include a capital improvement plan that addresses proper management and protection of the infrastructure assets? Does the plan include a time schedule for implementing the short and long-term plans plus a schedule for developing the funds needed for the capital improvement plan?

Contingency Equipment and Replacement Inventory

G Does the SSMP list the major equipment currently used in the operation and maintenance of the collection system?

H Are contingency equipment and replacement parts sufficient to respond to emergencies and properly conduct regular maintenance?

Training

I Are the training records current?

J Does the SSMP document current training expectations and programs?

Discussion:

Element 5 – Design and Performance Standards Yes No

A Does the SSMP reference current design and construction standards for the installation of new sanitary sewer systems, pump stations and other appurtenances and for the rehabilitation and repair of existing sanitary sewer systems?

B Does the SSMP document current procedures and standards for inspecting and testing the installation of new sewers, pumps, and other appurtenances and the rehabilitation and repair of existing sewer lines?

Richardson Bay Sanitary District 3 2012-13 SSMP Audit Element 5 – Design and Performance Standards Yes No

Discussion:

Element 6 – Overflow and Emergency Response Plan Yes No

A Does the District’s Overflow Emergency Response Plan (OERP) contain proper notification procedures so that the primary responders and regulatory agencies are informed of all sanitary sewer overflows (SSOs) as required by the WDR and MRP?

B Does the OERP have a program to ensure an appropriate response to all overflows?

C Does the OERP contain procedures to ensure prompt notification to appropriate regulatory agencies and other potentially affected entities of all SSOs that potentially affect public health or reach waters of the State in accordance with the MRP? Does the SSMP identify the officials who will receive immediate notification of such SSOs?

D Are staff and contractor personnel aware of and appropriately trained on the procedures of the OERP?

E Does the OERP contain procedures to address emergency operations such as traffic and crowd control and other necessary response activities?

F Does the OERP ensure that all reasonable steps are taken to contain and prevent the discharge of untreated and partially treated wastewater to waters of the United States and to minimize or correct any adverse impact on the environment resulting from SSOs, including such accelerated or additional monitoring as may be necessary to determine the nature and impact of the discharge?

G Considering SSO performance data, is the OERP effective in handling SSOs in order to safeguard public health and the environment?

H Is the Water Quality Monitoring Plan current and has it been trained on and practiced by staff that would be involved in a SSO of large volume?

Richardson Bay Sanitary District 4 2012-13 SSMP Audit Element 5 – Design and Performance Standards Yes No

I Was sampling conducted within 48 hours for all SSOs greater than 50,000 gallons and were results entered for these SSOs through the CIWQS website?

J Has the District prepared a Technical Report for all SSOs larger than 50,000 gallons? Have all Technical Reports been filed on the CIWQS website as required?

Discussion:

Element 7 – Fats, Oils, and Grease (FOG) Control Program Yes No

A Does the Fats, Oils, and Grease (FOG) Control Program include a description of public education outreach efforts that promote proper handling and disposal of FOG?

B Does the FOG program include a plan for the disposal of FOG generated within the sewer system service area?

C Does the District have sufficient legal authority to prohibit discharges to the system and identify measures to prevent SSOs and blockages caused by FOG?

D Are there requirements to install grease removal devices (such as traps or interceptors), best management practices (BMP) requirements, record keeping, maintenance requirements and reporting requirements established in the District’s FOG Control Program?

E Does the District have authority to inspect grease producing facilities and have sufficient staff to inspect and enforce the FOG ordinance?

F Does the FOG control program identify sections of the collection system subject to FOG blockages, establish a cleaning schedule and address source control measures to minimize these blockages?

G Does the FOG control program implement source control measures for all sources of FOG discharged to the collection system?

H Is the current FOG program effective in minimizing blockages of sewer lines resulting from discharges of FOG to the system?

Richardson Bay Sanitary District 5 2012-13 SSMP Audit Element 7 – Fats, Oils, and Grease (FOG) Control Program Yes No

Discussion:

Element 8 – System Evaluation and Capacity Assurance Plan Yes No

A Does the System Evaluation and Capacity Assurance Plan evaluate hydraulic deficiencies in the system and provide estimates of peak flows associated with conditions similar to those causing overflow events, if applicable?

B Does the District’s capital improvement program (CIP) establish a schedule of approximate completion dates for both short-term and long- term improvements and is the schedule reviewed and updated to reflect current budgetary capabilities and activity accomplishment?

C Does the District take steps needed to establish a short and long-term CIP to address hydraulic deficiencies, including prioritization, alternatives analysis, and schedules? Are repair and replacement projects developed based upon condition assessment and/or field maintenance results?

Discussion:

Element 9 – Monitoring, Measurement, and Program Modifications Yes No

A Does the District maintain relevant information that can be used to establish and prioritize appropriate SSMP activities?

B Does the District monitor the implementation and, where appropriate, measure the effectiveness of each element of the SSMP?

C Does the District assess the success of the preventive maintenance program?

D Does the District update program elements, as appropriate, based upon monitoring or performance evaluations?

Richardson Bay Sanitary District 6 2012-13 SSMP Audit Element 9 – Monitoring, Measurement, and Program Modifications Yes No

E Does the SSMP identify and illustrate SSO trends, including frequency, location and volume of SSOs?

Discussion:

Element 10 – SSMP Audits Yes No

A Does the audit focus on the effectiveness of the SSMP? If not, what needs to be changed to increase the effectiveness of the overall collection system program?

B Were the audit results shared with the District Board? And the public, via the District website?

C Will the SSMP Audit be completed, reviewed, and filed as an Appendix to the SSMP on a biennial basis?

D Do any proposed changes to the SSMP require Board approval as they have a substantial change in the policies and procedures for collection system operations and maintenance?

Discussion:

Element 11 – Communication Program Yes No

A Does the District communicate on a regular basis with the public and other agencies about the development and implementation of the SSMP? Does the communication system provide the public the opportunity to provide input as the program is developed and implemented? Were annual progress reports and metrics of implementation of the SSMP provided to the District Board?

Discussion:

Richardson Bay Sanitary District 7 2012-13 SSMP Audit Change Log Yes No

A Is the SSMP Change Log current and up to date?

Discussion:

Richardson Bay Sanitary District 8 2012-13 SSMP Audit

Richardson Bay Sanitary District SSMP Change Log

SSMP Change Authorized Date Description of Change/Revision Made Element by

This page left intentionally blank Richardson Bay Sanitary District SSMP Audit Report Form

Audit Period Covered: January 1, 2012 through December 31, 2013 Audit completed by: V. W. Housen & Associates, Inc. on 4/30/2014

Introduction Yes No

Is the current system description complete and up to date? Are all infrastructure statistics current and complete? X

Discussion: RBSD’s SSMP was updated in 2014 to reflect the new WDR Monitoring and Reporting requirements. This SSMP audit is based on the 2014 SSMP update.

Element 1 – Goals Yes No

A Are the goals stated in the SSMP still appropriate and accurate? X

Discussion:

Element 2 -- Organization Yes No

A Is the Contact Information current? X

B Is the Sanitary Sewer Overflow Responder List current? X

C Is the Organization Chart in Figure 2-1 of the SSMP current? X

D Are the position descriptions an accurate portrayal of staff X responsibilities?

E Is the chain of communication for reporting and responding to SSOs X accurate and up-to-date?

Discussion:

Richardson Bay Sanitary District 1 2012-13 SSMP Audit Element 3 – Legal Authority Yes No

Does the SSMP contain current references to the District’s Code documenting it’s legal authority to:

A Prevent illicit discharges? X (Note 1)

B Require proper design and construction of sewers and connections? X

C Ensure access for maintenance, inspection, or repairs for portions of the X lateral owned or maintained by the District? (Note 2)

D Limit discharges of fats, oil and grease? X

E Enforce any violation of its sewer ordinances? X

F Were any changes or modifications made in the past year or since the X last SSMP audit to District Ordinances, Regulations, or standards?

Discussion: 1. RBSD has legal authority to enforce SSMP requirements through the Sewer Use Code, and also through SASM Ordinance 83-1. 2. The District does not own any part of the lateral

Element 4 – Operations and Maintenance Yes No

Collection System Maps

A Does the SSMP reference the current process and procedures for X maintaining the District’s sanitary sewer system maps?

B Are the District’s wastewater collection system maps complete, X current, and sufficiently detailed?

Prioritized Preventive Maintenance

C Does the SSMP describe current preventive maintenance activities and X the system for prioritizing the cleaning of sewer lines?

Richardson Bay Sanitary District 2 2012-13 SSMP Audit Element 4 – Operations and Maintenance Yes No

D Based upon the SSO information in CIWQS and the Annual SSO X Report, are the District’s preventive maintenance activities sufficient and effective in minimizing SSOs and blockages?

Rehabilitation and Replacement Program

E Is there an ongoing condition assessment program sufficient to rank the X condition of sewer pipes and schedule rehabilitation? Are the current components of this program documented in the SSMP?

F Does the rehabilitation and replacement plan include a capital X improvement plan that addresses proper management and protection of the infrastructure assets? Does the plan include a time schedule for implementing the short and long-term plans plus a schedule for developing the funds needed for the capital improvement plan?

Contingency Equipment and Replacement Inventory

G Does the SSMP list the major equipment currently used in the X operation and maintenance of the collection system?

H Are contingency equipment and replacement parts sufficient to respond X to emergencies and properly conduct regular maintenance?

Training

I Are the training records current? X

J Does the SSMP document current training expectations and programs? X (Note 1)

Discussion: 1. RBSD will receive training on the updated SSMP and OERP in mid-2014.

Element 5 – Design and Performance Standards Yes No

A Does the SSMP reference current design and construction standards for X the installation of new sanitary sewer systems, pump stations and other appurtenances and for the rehabilitation and repair of existing sanitary sewer systems?

Richardson Bay Sanitary District 3 2012-13 SSMP Audit Element 5 – Design and Performance Standards Yes No

B Does the SSMP document current procedures and standards for X inspecting and testing the installation of new sewers, pumps, and other appurtenances and the rehabilitation and repair of existing sewer lines?

Discussion: 1. RBSD utilizes the expertise of professional consultants, in addition to current design standards, to establish design criteria and inspection/testing standards for the pump station, force main, and gravity interceptor rehabilitation projects.

Element 6 – Overflow and Emergency Response Plan Yes No

A Does the District’s Overflow Emergency Response Plan (OERP) X contain proper notification procedures so that the primary responders and regulatory agencies are informed of all sanitary sewer overflows (SSOs) as required by the WDR and MRP?

B Does the OERP have a program to ensure an appropriate response to all X overflows?

C Does the OERP contain procedures to ensure prompt notification to X appropriate regulatory agencies and other potentially affected entities of all SSOs that potentially affect public health or reach waters of the State in accordance with the MRP? Does the SSMP identify the officials who will receive immediate notification of such SSOs?

D Are staff and contractor personnel aware of and appropriately trained on Note 1 the procedures of the OERP?

E Does the OERP contain procedures to address emergency operations X such as traffic and crowd control and other necessary response activities?

F Does the OERP ensure that all reasonable steps are taken to contain and X prevent the discharge of untreated and partially treated wastewater to waters of the United States and to minimize or correct any adverse impact on the environment resulting from SSOs, including such accelerated or additional monitoring as may be necessary to determine the nature and impact of the discharge?

G Considering SSO performance data, is the OERP effective in handling X SSOs in order to safeguard public health and the environment?

Richardson Bay Sanitary District 4 2012-13 SSMP Audit Element 5 – Design and Performance Standards Yes No

H Is the Water Quality Monitoring Plan current and has it been trained on Note 1 and practiced by staff that would be involved in a SSO of large volume?

I Was sampling conducted within 48 hours for all SSOs greater than n/a 50,000 gallons and were results entered for these SSOs through the (Note 2) CIWQS website?

J Has the District prepared a Technical Report for all SSOs larger than n/a 50,000 gallons? Have all Technical Reports been filed on the CIWQS (Note 2) website as required?

Discussion: 1. The District will receive training on the updated SSMP and OERP in mid-2014. 2. No SSOs over 50,000 gallons in volume occurred after the updated WDR requirements became effective on September 9, 2013. Therefore, RBSD did not complete any Technical Reports and no samples were taken or recorded in CIWQS.

Element 7 – Fats, Oils, and Grease (FOG) Control Program Yes No

A Does the Fats, Oils, and Grease (FOG) Control Program include a n/a description of public education outreach efforts that promote proper (Note 1) handling and disposal of FOG?

B Does the FOG program include a plan for the disposal of FOG n/a generated within the sewer system service area? (Note 1)

C Does the District have sufficient legal authority to prohibit discharges to n/a the system and identify measures to prevent SSOs and blockages caused (Note 1) by FOG?

D Are there requirements to install grease removal devices (such as traps n/a or interceptors), best management practices (BMP) requirements, record (Note 1) keeping, maintenance requirements and reporting requirements established in the District’s FOG Control Program?

E Does the District have authority to inspect grease producing facilities n/a and have sufficient staff to inspect and enforce the FOG ordinance? (Note 1)

Richardson Bay Sanitary District 5 2012-13 SSMP Audit Element 7 – Fats, Oils, and Grease (FOG) Control Program Yes No

F Does the FOG control program identify sections of the collection n/a system subject to FOG blockages, establish a cleaning schedule and (Note 1) address source control measures to minimize these blockages?

G Does the FOG control program implement source control measures for n/a all sources of FOG discharged to the collection system? (Note 1)

H Is the current FOG program effective in minimizing blockages of sewer n/a lines resulting from discharges of FOG to the system? (Note 1)

Discussion: 1. RBSD does not have FOG-related SSOs, and has not established a formal FOG Program. However, RBSD does have the authority to control and/or prohibit the discharge of deleterious substances into the sewer system through its Sewer Use Code.

Element 8 – System Evaluation and Capacity Assurance Plan Yes No

A Does the System Evaluation and Capacity Assurance Plan evaluate X hydraulic deficiencies in the system and provide estimates of peak flows associated with conditions similar to those causing overflow events, if applicable?

B Does the District’s capital improvement program (CIP) establish a X schedule of approximate completion dates for both short-term and long- (Note 1) term improvements and is the schedule reviewed and updated to reflect current budgetary capabilities and activity accomplishment?

C Does the District take steps needed to establish a short and long-term X CIP to address hydraulic deficiencies, including prioritization, alternatives analysis, and schedules? Are repair and replacement projects developed based upon condition assessment and/or field maintenance results?

Discussion: 1. The District’s capacity assurance plan identified no capacity issues in the RBSD system.

Richardson Bay Sanitary District 6 2012-13 SSMP Audit Element 9 – Monitoring, Measurement, and Program Modifications Yes No

A Does the District maintain relevant information that can be used to X establish and prioritize appropriate SSMP activities?

B Does the District monitor the implementation and, where appropriate, Note 1 measure the effectiveness of each element of the SSMP?

C Does the District assess the success of the preventive maintenance X program?

D Does the District update program elements, as appropriate, based upon monitoring or performance evaluations? X

E Does the SSMP identify and illustrate SSO trends, including frequency, X location and volume of SSOs?

Discussion: 1. Although progress in maintaining and managing the sewer collection system is monitored and discussed, this assessment does not specifically identify progress related to the individual SSMP Elements. This level of monitoring will be implemented during the 2014/2015 audit cycle.

Element 10 – SSMP Audits Yes No

A Does the audit focus on the effectiveness of the SSMP? If not, what X needs to be changed to increase the effectiveness of the overall collection system program?

B Were the audit results shared with the District Boardl? And the public, X via the District website? (Note 1)

C Will the SSMP Audit be completed, reviewed, and filed as an Appendix X to the SSMP on a biennial basis?

D Do any proposed changes to the SSMP require Board approval as they X have a substantial change in the policies and procedures for collection system operations and maintenance?

Discussion: 1. Audit results will be included in Appendix I of the SSMP, which will be uploaded to RBSD’s website by June 2014.

Richardson Bay Sanitary District 7 2012-13 SSMP Audit

Element 11 – Communication Program Yes No

A Does the District communicate on a regular basis with the public and X other agencies about the development and implementation of the (Note 1) SSMP? Does the communication system provide the public the opportunity to provide input as the program is developed and implemented? Were annual progress reports and metrics of implementation of the SSMP provided to the District Board?

Discussion: 2. RBSD does not currently have a formal communication plan in place for the communication of SSMP elements, performance or updates. The SSMP will be added to the RBSD website in early 2014, and the most recent SSMP: update will be discussed at a Board meeting, which is a forum that encourages public participation and comment.

Change Log Yes No

A Is the SSMP Change Log current and up to date? X

Discussion:

Richardson Bay Sanitary District 8 2012-13 SSMP Audit

Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

Appendix J Element 11 (Communication Plan) Placeholder for Future Supporting Documents

Richardson Bay Sanitary District Sewer System Management Plan APPENDICES

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