Chapter 1. Inventory

Chapter One Inventory Chapter One

H. A. CLARK MEMORIAL FIELD Inventory

The initial step in the preparation of the and development that has taken place airport master plan for H.A. Clark recently at the airport. Memorial Field (CMR) is the collection of information pertaining to the airport and • Population and other significant the area it serves. The information socioeconomic data which can summarized in this chapter will be used provide an indication of future in subsequent analyses in this study. It trends that could influence aviation includes: activity at the airport.

• Physical inventories and descriptions • A review of existing local and regional of the facilities and services currently plans and studies to determine their provided at the airport, including the potential influence on the regional airspace, air traffic control, development and implementation of and aircraft operating procedures. the airport master plan.

• Background information pertaining to The information in this chapter was Coconino County and the Williams obtained from several sources, including community, including descriptions on-site inspections, interviews with City of the regional climate, surface trans- staff and airport tenants, airport records, portation systems, H.A. Clark related studies, the Federal Aviation Memorial Field's role in the regional, Administration (FAA) and a number of state, and national aviation systems, internet sites.

1-1 A complete listing of the data sources of Williams. An Airport Advisory is provided at the end of this chapter. Committee provides recommendations to the City Council on the administration and development of the airport. AIRPORT SETTING The Airport Advisory Committee is made up of ten members and is The City of Williams, founded in 1880, headed by the Chairman who is ap- is located in the north central portion pointed by the Mayor and serves a of Arizona, approximately 35 miles term of one year. The City of Williams west of Flagstaff and 110 miles east of currently employs a part-time airport Kingman. Williams is easily accessi- manager. The airport manager han- ble off Interstate 40, which crosses dles the administrative duties at the northern Arizona. H.A. Clark Memo- airport. rial Field is located approximately three miles north of the City on approximately 303 acres in the Kaibab AIRPORT DEVELOPMENT National Forest in west-central Cocon- HISTORY ino County. Exhibit 1A illustrates the location of H.A. Clark Memorial To assist in funding capital improve- Field in its regional setting. The air- ments, the FAA has provided funding port is accessible via Airport Road. assistance to H.A. Clark Memorial Field through the Airport Improve- ment Program (AIP). The AIP is REGIONAL ACCESS funded through the Aviation Trust Fund, which was established in 1970 Interstate 40 provides automobile ac- to provide funding for aviation capital cess to the City of Williams. Amtrak investment programs (aviation devel- currently provides rail service to the opment, facilities and equipment, and City of Williams. The Amtrak plat- research and development). The Trust form has been in operation since its Fund also finances a portion of the op- construction near the Fray Marcos Ho- eration of the FAA. It is funded by tel in 1999. The platform is located user fees, taxes on airline tickets, approximately two miles south of H.A. aviation fuel, and various aircraft Clark Memorial Field. There are cur- parts. rently no bus services to the City of Williams. Table 1A summarizes FAA AIP grants received by H.A. Clark Memo- rial Field since 1999. The FAA has OWNERSHIP provided more than $5.7 million for AND MANAGEMENT airport improvements at H.A. Clark Memorial Field over the past seven H.A. Clark Memorial Field is owned, years. operated, and maintained by the City

1-2 VINICITY MAP 04MP12-1A-4/13/06

160

191 64 H.A. Clark 89

180 Memorial Airfield 40 WilliamsWilliams FlagstaffFlagstaff

191 93 180

Forest Rd. Airport Rd. 60

10 PhoenixPhoenix ScottsdaleScottsdale

191 60 95 10 70

8 180 64 10

89 40 RodeoRodeo Rd.Rd. NF-124 LOCATION MAP Cooper Rd. 40

Williams Country Club Cataract Rd.

HAVASUPAI GRAND CANYON Tuba City 160 INDIAN NATIONAL PARK RESERVATION HUALAPAI INDIAN 264 RESERVATION 64 NAVAJO NATION KAIBAB 180 NATIONAL FOREST NORTH COCONINO 89 HOPI INDIAN RESERVATION H.A.H.A. CLARKCLARK NOT TO SCALE MEMORIALMEMORIAL WUPATKI AIRFIELDAIRFIELD KAIBAB NATIONAL 64 NATIONAL 180 MONUMENT NAVAJO FOREST

40 Williams FFlagstafflagstaff 40 180 PRESCOTT NATIONAL Winslow FOREST 89 Sedona Holbrook Chino Valley PRESCOTT COCONINO NATIONAL NATIONAL FOREST 89A FOREST 87 Prescott Valley APACHE- Prescott SITGREAVES Camp Verde NATIONAL FOREST YAVAPAI 17 277 69 260 AGUA FRIA 260 89 NATIONAL MONUMENT MAZATZAL Payson FORT APACHE WILDERNESS GILA AREA INDIAN RESERVATION H. A. CLARK MEMORIAL FIELD

Exhibit 1A LOCATION MAP TABLE 1A AIP Grants Offered to City of Williams AIP Grant Project Total Fiscal Year Number Description Grant Funds Rehabilitate Runway 18-36; Runway 1999 AIP-10 Gradient Modifications and Widening $779,492 (Phase I) Rehabilitate Runway 18-36; Runway 2000 AIP-11 Gradient Modifications and Widening $1,932,839 (Phase II); Install Wildlife Fence 2001 AIP-12 Airport Rescue Fire Fighting Equipment $227,650 2002 AIP-13 Airport Apron Expansion (Phase I) $292,056 2002 AIP-14 Airport Apron Expansion (Phase II) $590,000 Airport Rescue Fire 2003 AIP-15 $150,000 Fighting Building (Phase I) Airport Rescue Fire Fighting Building 2004 AIP-16 $364,240 (Phase II); PAPI; REILs Runway 18-36 2004 AIP-17 Update Airport Master Plan $122,931 2005 AIP-18 Airport Apron Expansion (Phase III) $1,187,500 Environmental Assessment – Land Ac- 2006 AIP-19 $150,000 quisition Total Grant Funds $5,796,708 Source: Airport Records PAPI – Precision Approach Path Indicator REIL – Runway End Identifier Lights

Between 1994 and 2005, the Arizona feet, to develop an airport terminal fa- Department of Transportation cility and apron, to develop a general (ADOT), Aeronautics Division, in- aviation apron for aircraft parking, vested $3.3 million in improvements and the development of T-hangar and at H.A. Clark Memorial Field. Table fixed base operator (FBO) facilities. 1B summarizes these projects and Since the last master plan, the termi- their total expenditures over this pe- nal facility has been constructed, a riod. general aviation apron is currently in the process of being constructed, and an FBO conventional hangar was con- THE AIRPORT’S SYSTEM ROLE structed.

Airport planning exists on many lev- At the state level, H.A. Clark Memo- els: local, regional, and national. Each rial Field is included in the Arizona level has a different emphasis and State Aviation System Plan (SASP). purpose. This master plan is the pri- The purpose of the SASP is to ensure mary local airport planning document. that the State has an adequate and efficient system of airports to serve its The previous H.A. Clark Memorial aviation needs. The SASP defines the Field Airport Master Plan was com- specific role of each airport in the pleted in 1995. The primary recom- State’s aviation system and estab- mendations from this master plan lishes funding needs. Through the were to extend Runway 18-36 to 8,000 State’s continuous aviation system 1-3 planning process, the SASP is updated to implement the plan. H.A. Clark every five years. The most recent up- Memorial Field is one of 112 airports date to the SASP was in 2000, when included in the 2000 SANS, which in- the State Aviation Needs Study cludes all airports and heliports in (SANS) was prepared. The SANS Arizona that are open to the public, provides policy guidelines that pro- including American Indian and rec- mote and maintain a safe aviation sys- reational airports. The SANS classi- tem in the State, assess the State’s fies H.A. Clark Memorial Field as a airport’s capital improvement needs, general aviation airport. and identify resources and strategies

TABLE 1B State Grants Offered to City of Williams ADOT Grant Project Total Fiscal Year Number Description Grant Funds Grade, Drain & Surface Parallel 1994 N439 $44,179 Taxiway; Fire Protection Grade, Drain & Surface Runway 18/36; 1995 N542 $472,200 AWOS; Environmental Assessment Grade, Drain & Surface Runway 18/36 1995 N562 Width & Extension & Taxiway; MIRL; $54,534 AWOS 1998 EN854 Terminal $315,000 Grade, Drain & Surface Runway, Apron, 1998 EN874 Access Road; Taxiway Signage; Security $270,000 Fence; Utilities Grade, Drain & Surface Apron; Fencing; 1999 E9031 $591,750 AWOS Runway Construction; Runway Structural 2000 E0126 $760,000 Upgrade; Terminal; AWOS Widen & Overlay Runway 18/36; Runway Gradient Modifications; Install Taxiway 2001 E1134 $94,880 Guidance Signs; Construct General Avia- tion Parking Apron; Wildlife Fence 2002 E3F36 Airport Rescue Fire Fighting Equipment $11,175 2002 E3F37 Airport Apron Expansion (Phase I) $14,337 2002 E3F78 Airport Apron Expansion (Phase II) $28,962 Airport Rescue Fire Fighting Building 2003 E4F50 $7,363 (Phase I) Airport Rescue Fire Fighting 2004 E5F74 Building (Phase II); PAPI; REIL Runway $9,585 18-36 2004 E5F75 Update Airport Master Plan $90,000 2004 E5S22 Pave Terminal Parking Lot $90,000 2004 E5S23 Drainage/Fire Protection Upgrade Study $90,000 Construct Helicopter Parking Apron; Fire Protection Facilities & ARFF Building; 2005 E6S09 $405,000 Runway Drainage and Erosion Control; Parallel Taxiway Extension; Total State Grant Funds $3,348,965 Source: Airport Records

AWOS – Automated Weather Observation System PAPI – Precision Approach Path Indicator REIL – Runway End Identifier Lights

1-4 At the national level, H.A. Clark Me- AIRPORT FACILITIES morial Field is designated within the FAA’s National Plan of Integrated Airport facilities can be functionally Airport Systems (NPIAS). Inclusion classified into two broad categories: within the NPIAS allows the airport to airside and landside. The airside be eligible for Federal Airport Im- category includes those facilities di- provement Program (AIP) funding. rectly associated with aircraft opera- H.A. Clark Memorial Field is classi- tions. The landside category includes fied as a general aviation airport in those facilities necessary to provide a the NPIAS. A total of 3,489 airports safe transition from surface to air across the country are included in the transportation and support aircraft NPIAS. This number includes exist- servicing, storage, maintenance, and ing and proposed airports. H.A. Clark operational safety. Memorial Field is one of 59 airports in the State of Arizona that are included in the NPIAS and one of 37 airports in AIRSIDE FACILITIES Arizona classified as a General Avia- tion Airport. Airside facilities include runways, taxiways, airfield lighting, and navigational aids. Airside facilities are identified on Exhibit 1B. Table 1C summarizes airside facility data.

TABLE 1C Airside Facility Data H.A. Clark Memorial Field Runway 18-36 Length (ft.) 6,000 Width (ft.) 100 Surface Material Asphalt Load Bearing Strength (SWL) 15,000 Instrument Approach Procedures None Runway Edge Lighting Medium Intensity Pavement Markings Nonprecision Taxiway Edge Lighting None Approach Aids Rwy 18 Rwy 36 Global Positioning System (GPS) No No Precision Approach Path Indicators (PAPI) Yes Yes Runway End Identifier Lights Yes Yes Elevation 6,624.5 6,684.7 Fixed Wing Aircraft Traffic Pattern Left Left Weather or Navigational Aids AWOS-III; Segmented Circle Lighted Wind Cone; Rotating Beacon Source: 1996 Airport ALP, 5010 Airport Master Record AWOS – Automated Weather Observing System

1-5 04MP12-1B-3/23/06 d Roa ort AirportAirp Road

8 ConventionalConventional HHangarsangars EquipmentEquipment BBuildinguilding WaterWater TankTank 10 ThreemileThreemile Fence Line ConventionalConventional HHangarangar LakeLake 7 T-HangarT 4 RotatingRotating BBeaconeacon

GasG Line 9 CConventionalonventional HHangarangar a 1 TerminalTerminal s

L i n 5 WilliamsWilliams AAirir AAdventuredventure 3 Fuel Storageoraoraragegeg e 35’35’ TaxiwayTaxiway A 6 ConventionalConventional HHangarangar

C 400’400’ E F D G 50’50’

RRunwayunway 18-3618-36 (6,000’(6,000’ x 1100’)00’)

2 SegmentedSSe Circle/Wind Sock AWOSAWOS AAirportirport PPropertyroperty LLineine

0 500 1000 1 TERMINALT 2 SEGMENTEDSEGMENTED CCIRCLE/IRCLE/ 3 FUELF STORAGE 4 ROTATINGR BEACON 5 WILLIAMSW AIR ADVENTURE WINDWIND SSOCKOCK SCALE IN FEET

NORTH

6 CONVENTIONALCONVENTIONAL HHANGARSANGARS 7 CONVENTIONALC HANGARS 8 CONVENTIONALC HANGARS 9 CONVENTIONALC HANGARS 10 WATERW TANK & EQUIPMENTE BUILDING

H. A. CLARK MEMORIAL FIELD

Exhibit 1B EXISTING FACILITIES Runway funds for pavement improvement projects implement a pavement mainte- H.A. Clark Memorial Field is served nance management program. by a single asphalt runway. Runway 18-36 is 6,000 feet long and 100 feet Part of the pavement maintenance wide. Runway 18-36 is oriented in a management program is to develop a north-south manner and has a load Pavement Condition Index (PCI) rat- bearing strength of 15,000 pounds ing. The rating is based on the guide- single wheel loading (SWL). SWL re- lines contained in FAA Advisory Cir- fers to the design of certain aircraft cular 150/5380-6, Guidelines and Pro- landing gears having a single wheel on cedures for Maintenance of Airport each main landing gear. The runway Pavements. slopes upward from south to north. The Runway 36 elevation is 60.6 feet The PCI procedure was developed to higher than the Runway 18 end. This collect data that would provide engi- equates to a runway gradient (differ- neers and managers with a numerical ence in runway elevations divided by value indicating overall pavement the length of the runway) of 1.0 per- conditions and that would reflect both cent. pavement structural integrity and operational surface condition. A PCI survey is performed by measuring the Taxiways amount and severity of certain dis- tresses (defects) observed within a The existing taxiway system at H.A. pavement sample unit. Clark Memorial Field is shown on Exhibit 1B. Taxiway A is the full- In July 2000, a pavement inspection length parallel taxiway located on the was conducted at H.A. Clark Memorial east side of Runway 18-36 and con- Field by the Arizona Department of nects to the main public apron areas. Transportation. Runway 18-36 was Taxiway A is located 400 feet from the found to have a PCI rating of 69 out of Runway 18-36 centerline. Taxiway A a possible 100. The runway had has an additional five exit taxiways cracking, weathering/raveling dis- serving Runway 18-36 (Taxiways C, D, tress. Taxiway A was found to have a E, F and G); all are 35 feet wide. The PCI rating of 99 out of a possible 100. taxiway system at H.A. Clark Memo- The terminal apron was found to have rial Field is not currently equipped a PCI rating of 100, and the hangar with any type of lighting. apron area was found to have a PCI rating of 76 out of a possible 100 with cracking distress. Pavement Condition

As a condition of receiving federal Airfield Lighting funds for the development of the airport, the Federal Aviation Administra- Airfield lighting systems extend an tion requires the airport sponsor re- airport’s usefulness into periods of ceiving and/or requesting federal darkness and/or poor visibility. A va-

1-6 riety of lighting systems are installed indication of whether their approach is at the airport for this purpose. These above, below, or on-path, through a lighting systems, categorized by func- pattern of red and white light visible tion, are summarized as follows. from the light units.

Identification Lighting: The loca- Airfield Signs: Airfield identification tion of an airport at night is univer- signs assist pilots in identifying their sally identified by a rotating beacon. location on the airfield and directing A rotating beacon projects two beams them to their desired location. Cur- of light, one white and one green, 180 rent airfield signage includes a mix- degrees apart. The rotating beacon at ture of lighted and unlighted signs in- H.A. Clark Memorial Field is located stalled at all taxiway and runway in- on the east end of the field adjacent to tersections. Airport Road and the equipment building as shown on Exhibit 1B. Runway Threshold Lighting: Runway threshold lights identify the Pavement Edge Lighting: Pave- runway end. Runway threshold lights ment edge lighting utilizes light fix- have specially designed lights that are tures placed near the edge of the green on one side and red on the other. pavement to define the lateral limits The green side is oriented towards the of the pavement. This lighting is es- landing aircraft. There are eight sential for safe operations during threshold lights at each runway end. night and/or times of low visibility in order to maintain safe and efficient Runway End Identification Light- access to and from the runway and ing: Runway end identifier lights aircraft parking areas. Runway 18-36 (REILs) provide rapid and positive is equipped with medium intensity identification of the approach end of a runway lighting (MIRL). runway. REILs are typically used on runways without more sophisticated Pilot-Controlled Lighting: Airfield approach lighting systems. The REIL lighting systems can be controlled system consists of two synchronized through a pilot-controlled lighting sys- flashing lights, located laterally on tem (PCL). A PCL allows pilots to each side of the runway facing the ap- turn on or increase the intensity of the proaching aircraft. REILs are in- airfield lighting systems from the air- stalled at each runway end. craft with the use of the aircraft’s radio transmitter. The Runway 18-36 MIRL is connected to the PCL system Pavement Markings at H.A. Clark Memorial Field. Pavement markings aid in the move- Visual Approach Lighting: A preci- ment of aircraft along airport surfaces sion approach path indicator (PAPI-2) and identify closed or hazardous areas is available for Runways 18 and 36. on the airport. The nonprecision The PAPIs provide approach path markings on Runway 18-36 identify guidance with a series of light units. the runway centerline, threshold, des- The two-unit PAPIs give the pilot an 1-7 ignation, touchdown point, and air- Area Airspace and craft holding positions. Air Traffic Control

Taxiway and apron taxilane centerline The Federal Aviation Administration markings are provided to assist air- (FAA) Act of 1958 established the FAA craft using these airport surfaces. as the responsible agency for the con- Centerline markings assist pilots in trol and use of navigable airspace maintaining proper clearance from within the United States. The FAA pavement edges and objects near the has established the National Airspace taxilane/taxiway edges. Pavement System (NAS) to protect persons and markings also identify aircraft park- property on the ground and to estab- ing positions. lish a safe and efficient airspace environment for civil, commercial, and military aviation. The NAS covers the Weather Reporting common network of U.S. airspace, including air navigation facilities; air- H.A. Clark Memorial Field is equipped ports and landing areas; aeronautical with an Automated Weather Observ- charts; associated rules, regulations, ing System (AWOS). The AWOS-III and procedures; technical information; provides automated aviation weather and personnel and material. The sys- observations 24 hours per day. The tem also includes components shared system updates weather observations jointly with the military. every minute, continuously reporting significant weather changes as they occur. The AWOS system reports Airspace Structure cloud ceiling, visibility, temperature, dew point, wind direction, wind speed, Airspace within the United States is altimeter setting (barometric pres- broadly classified as either Acontrolled@ sure), and density altitude (airfield or “uncontrolled.” The difference be- elevation corrected for temperature). tween controlled and uncontrolled air- The AWOS is located west of the seg- space relates primarily to require- mented circle and wind cone. ments for pilot qualifications, ground- to-air communications, navigation and H.A. Clark Memorial Field is equipped air traffic services, and weather condi- with a lighted wind cone and seg- tions. Six classes of airspace have mented circle. The wind cone provides been designated in the United States wind direction and speed information as shown on Exhibit 1C. Airspace to pilots. The segmented circle pro- designated as Class A, B, C, D, or E is vides aircraft traffic pattern informa- considered controlled airspace. Air- tion. All this equipment is located craft operating within controlled air- west of the runway and apron. space are subject to varying require-

1-8 04MP12-1C-3/31/06

LEGEND AGL - Above Ground Level FL - Flight Level in Hundreds of Feet MSL - Mean Sea Level

NOT TO SCALE

Source: "Airspace Reclassification and Charting Changes for VFR Products," National Oceanic and Atmospheric Administration, National Ocean Service. Chart adapted by Coffman Associates from AOPA Pilot, January 1993.

CLASSIFICATION DEFINITION CLASS A Generally airspace above 18,000 feet MSL up to and including FL 600 .

CLASS B Generally multi-layered airspace from the surface up to 10,000 feet MSL surrounding the nation's busiest airports.

CLASS C Generally airspace from the surface to 4,000 feet AGL surrounding towered airports with service by radar approach control.

CLASS D Generally airspace from the surface to 2,500 feet AGL surrounding towered airports.

CLASS E Generally controlled airspace that is not Class A, Class B, Class C, or Class D.

CLASS G Generally uncontrolled airspace that is not Class A, Class B, Class C, Class D, or Class E.

H. A. CLARK MEMORIAL FIELD

Exhibit 1C AIRSPACE CLASSIFICATION ments for positive air traffic control. air traffic control. To operate within Airspace in the vicinity of H.A. Clark the Class B airspace of Phoenix Sky Memorial Field is depicted on Exhibit Harbor International Airport, a pilot 1D. must have at least a private pilot’s certificate or be a student pilot who Class A Airspace: Class A airspace has met the requirements of F.A.R. includes all airspace from 18,000 feet Part 61.95, which requires special mean sea level (MSL) to flight level ground and flight training for the (FL) 600 (approximately 60,000 feet Class B airspace. Helicopters do not MSL). This airspace is designated in need special navigation equipment or Federal Aviation Regulation (F.A.R.) a transponder if they operate at or be- Part 71.193 for positive control of air- low 1,000 feet and have made prior craft. The Positive Control Area arrangements in the form of a Letter (PCA) allows flights governed only of Agreement with the FAA controlling under IFR operations. The aircraft agency. Aircraft are also required to must have special radio and naviga- have and utilize a Mode C trans- tion equipment, and the pilot must ob- ponder within a 30-nautical-mile (NM) tain clearance from an air traffic con- range of the center of the Class B air- trol (ATC) facility to enter Class A airspace. A Mode C transponder allows space. In addition, the pilot must pos- the ATCT to track the location of the sess an instrument rating. aircraft.

Class B Airspace: Class B airspace The Phoenix Terminal Radar Ap- has been designated around some of proach Control Facility (TRACON) the country’s major airports to sepa- controls all aircraft operating within rate arriving and departing aircraft. the Phoenix Class B airspace. The Class B airspace is designed to regu- TRACON operates 24 hours per day. late the flow of uncontrolled traffic, above, around, and below the arrival Class C Airspace: The FAA has es- and departure airspace required for tablished Class C airspace at 120 air- high-performance, passenger-carrying ports around the country as a means aircraft at major airports. This air- of regulating air traffic in these areas. space is the most restrictive controlled Class C airspace is designed to regu- airspace routinely encountered by pi- late the flow of uncontrolled traffic lots operating under visual flight rules above, around, and below the arrival (VFR) in an uncontrolled environment. and departure airspace required for The nearest Class B airspace to H.A. high-performance, passenger-carrying Clark Memorial Field is located at aircraft at major airports. In order to Phoenix Sky Harbor International fly inside Class C airspace, the aircraft Airport. must have a two-way radio, an encod- ing transponder, and have established In order to fly within Class B airspace, communication with ATC. Aircraft an aircraft must be equipped with may fly below the floor of the Class C special radio and navigational equip- airspace or above the Class C airspace ment and must obtain clearance from ceiling without establishing communi-

1-9 SOURCE:SOURCE: PhoenixPhoenix SSectionalectional CChart,hart, USUS DepartmentDepartment ofof Commerce,Commerce,

04MP12-1D-3/31/06 NationalNational OOceanicceanic aandnd AtmosphericAtmospheric AAdministrationdministration Oct.Oct. 27,27, 22005005 VVallealle SUNNYSUNNY MOAMOA

WWUPATKIUPATKI NATIONALNATIONAL NORTHNORTH MONUMENTMONUMENT

NOTNOT TTOO SSCALECALE H.A. Clark Memorial KENDRICKKENDRICK MOUNTAINMOUNTAIN V 291 Airfield 291 WILDERNESSWILDERNESS AREAAREA

KKACHINAACHINA PEAKSPEAKS WILDERNESSWILDERNESS AREAAREA

V 257

R-2302R-2302 FFlagstafflagstaff VOR-DMEVOR-DME PPulliamulliam NDBNDB FlagstaffFlagstaff PulliamPulliam

SYCAMORESYCAMORE CANYONCANYON REDRED ROCKROCK WILDERNESSWILDERNESS AREAAREA SECRETSECRET MOUNTAINMOUNTAIN WILDERNESSWILDERNESS AREAAREA

-264 V 12-26412 SSedonaedona MMUNDSUNDS MOUNTAINMOUNTAIN WILDERNESSWILDERNESS AREAAREA

WOODCHUTEWOODCHUTE

WILDERNESSWILDERNESS AREAAREA 2

3 WWETET BEAVERBEAVER DrakeDrake V 327 WILDERNESSWILDERNESS AREAAREA VORTACVORTAC LoveLove RimrockRimrock

GRANITEGRANITE MOUNTAINMOUNTAIN WILDERNESSWILDERNESS AREAAREA WESTWEST CLEARCLEAR CREEKCREEK MMontezumaontezuma WILDERNESSWILDERNESS AREAAREA

Airport with other than hard-surfaced Compass Rose Victor Airways runways Class D Airspace Wilderness Area L Airport with hard-surfaced runways Class E Airspace Military Operations Area - E 1,500' to 8,069' in length MOA Class E Airspace with floor G Airports with hard-surfaced runways E 700 ft. above surface Prohibited, Restricted, greater than 8,069' or some multiple Warning, and Alert Areas N runways less than 8,069' Class E Airspace with floor D 1200 ft. or greater above surface Non-Directional Radiobeacon (NDB) Differentiates floors of Class E VORTAC Airspace greater than 700 ft. above surface H. A. CLARK MEMORIAL FIELD

Exhibit 1D VICINITY AIRSPACE cation with ATC. There is no Class C space. While aircraft conducting vis- airspace in the vicinity of H.A. Clark ual flights in Class E airspace are not Memorial Field. required to be in radio communications with air traffic control facilities, Class D Airspace: Class D airspace visual flight can only be conducted if is controlled airspace surrounding air- minimum visibility and cloud ceilings ports with an airport traffic control exist. tower (ATCT). The Class D airspace typically constitutes a cylinder with a H.A. Clark Memorial Field is in Class horizontal radius of four or five nauti- E airspace. This area of controlled cal miles (NM) from the airport, ex- airspace has a floor of 1,200 feet above tending from the surface up to a des- the surface and extends to Class A ignated vertical limit, typically set at airspace. This transition area is in- approximately 2,500 feet above the tended to provide protection for air- airport elevation. If an airport has an craft transitioning from enroute instrument approach or departure, the flights to the airport for landing. Class D airspace sometimes extends along the approach or departure path. Class G Airspace: Airspace not designated as Class A, B, C, D, or E is Flagstaff Pulliam Airport is the near- considered uncontrolled, or Class G, est Class D airspace airport to H.A. airspace. Air traffic control does not Clark Memorial Field. The Class D have the authority or responsibility to airspace extends for approximately exercise control over air traffic within three nautical miles around the air- this airspace. Class G airspace lies port, from the surface to 9,500 feet between the surface and the overlay- MSL. The Flagstaff Pulliam Airport ing Class E airspace (700 to 1,200 feet Class D airspace is effective between above ground level [AGL]). Class G April 1st and September 30th starting airspace extends below the floor of the at 6:00 a.m. to 9:00 p.m. October 1st to Class E airspace transition area in the March 31st, it is effective between 7:00 H.A. Clark Memorial Field area. a.m. to 7:00 p.m. At all other times, the airport is in Class E airspace. While aircraft may technically operate within Class G airspace without any Class E Airspace: Class E airspace contact with ATC, it is unlikely that consists of controlled airspace de- many aircraft will operate this low to signed to contain instrument flight the ground. Furthermore, federal rules (IFR) operations near an airport regulations specify minimum altitudes and while aircraft are transitioning for flight. F.A.R. Part 91.119, Mini- between the airport and enroute envi- mum Safe Altitudes, generally states ronments. Unless otherwise specified, that except when necessary for takeoff Class E airspace terminates at the or landing, pilots must not operate an base of the overlying airspace. Only aircraft over any congested area of a aircraft operating under IFR are re- city, town, or settlement, or over any quired to be in contact with air traffic open air assembly of persons, at an control when operating in Class E air- altitude of less than 1,000 feet above

1-10 the highest obstacle within a horizon- letters VR and a four digit number or tal radius of 2,000 feet of the aircraft. with IR and a three digit number. The Over less congested areas, pilots must arrows on the route show the direction maintain an altitude of 500 feet above of travel. Military aircraft travel on the surface, except over open water or these routes below 10,000 feet MSL sparsely populated areas. In those and at speeds in excess of 250 knots. cases, the aircraft may not be operated closer than 500 feet to any person, Wilderness Areas: As depicted on vessel, vehicle, or structure. Finally, Exhibit 1D, a number of wilderness this section states that helicopters areas are located in the Williams area. may be operated at less than the Aircraft are requested to maintain a minimums prescribed above if the op- minimum altitude of 2,000 feet above eration is conducted without hazard to the surface of designated National persons or property on the surface. In Park areas, which includes wilderness addition, each person operating a heli- areas and designated breeding copter shall comply with any routes or grounds. FAA Advisory Circular 91- altitudes specifically prescribed for 36C defines the "surface" as the high- helicopters by the FAA. est terrain within 2,000 feet laterally of the route of flight or the uppermost rim of a canyon or valley. Special Use Airspace Victor Airways: For aircraft arriv- Special use airspace is defined as air- ing or departing the regional area us- space where activities must be con- ing very high frequency omnidirec- fined because of their nature or where tional range (VOR) facilities, a system limitations are imposed on aircraft not of Federal Airways, referred to as Vic- taking part in those activities. These tor Airways, has been established. areas are depicted on Exhibit 1D by Victor Airways are corridors of air- blue and purple-hatched lines, as well space eight miles wide that extend as with the use of green shading. upward from 1,200 feet AGL to 18,000 feet MSL and extend between VOR Military Operating Areas: Military navigational facilities. Victor Airways Operations Areas (MOAs) are depicted are shown with solid blue lines on in Exhibit 1D with the purple- Exhibit 1D. V291 passes to the south hatched lines. The MOA in the vicin- of H.A. Clark Memorial Field and ex- ity of H.A. Clark Memorial Field is the tends from the Flagstaff VOR/DME to Sunny MOA to the northeast. A No- the west. V257 passes to the west of tice to Airmen (NOTAM) will be H.A. Clark Memorial Field and ex- posted 24 hours prior to the MOA’s tends from the Drake very high fre- use. The Sunny MOA has operations quency omnidirectional range facility at an altitude of 12,000 feet MSL. with military tactical air navigation aid (VORTAC) to the north. Military Training Routes: Military training routes near H.A. Clark Me- Restricted Areas: Restricted areas morial Field are identified with the are depicted on Exhibit 1D with blue-

1-11 hatched lines. There is one restricted aids available for aircraft flying to or area to the southeast of H.A. Clark from H.A. Clark Memorial Field in- Memorial Field near Flagstaff. Re- clude the VOR, the nondirectional stricted airspace is off-limits for public beacon (NDB), global positioning sys- use unless granted permission from tem (GPS), and Loran-C. the controlling agency. These restricted areas are used by the military The VOR provides azimuth readings for training purposes. to pilots of properly equipped aircraft by transmitting a radio signal at every Restricted area R-2302 includes alti- degree to provide 360 individual navi- tudes from the surface to 10,000 feet gational courses. Frequently, distance MSL and is operational Monday measuring equipment (DME) is com- through Saturday from 8:00 a.m. to bined with a VOR facility to provide 12:00 a.m. The controlling agency for distance as well as direction informa- this restricted area is the Albuquerque tion to the pilot. Military tactical air Air Route Traffic Control Center navigation aids (TACANs) and civil (ARTCC). VORs are commonly combined to form a VORTAC. A VORTAC provides distance and direction information to Airspace Control civil and military pilots.

The FAA is responsible for the control The Flagstaff VOR/DME, located ap- of aircraft within the Class A, Class C, proximately 27 nautical miles east of Class D, and Class E airspace de- the field, serves H.A. Clark Memorial scribed above. The Albuquerque Field area. This facility is identified ARTCC controls aircraft operating in on Exhibit 1D. Class A airspace. The Albuquerque ARTCC located in Albuquerque, New The NDB transmits nondirectional ra- Mexico, controls IFR aircraft entering dio signals, whereby the pilot of a or leaving the H.A. Clark Memorial properly equipped aircraft can deter- Field area. The area of jurisdiction for mine the bearing to or from the NDB the Albuquerque center includes most facility and then Ahome@ or track to or of the states of New Mexico and Ari- from the station. The nearest NDB to zona, and portions of Texas, Colorado, H.A. Clark Memorial Field is the and Oklahoma. Pulliam NDB, located approximately 27 nautical miles east of the field.

Navigational Aids Loran-C is a ground-based enroute navigational aid which utilizes a sys- Navigational aids are electronic de- tem of transmitters located in various vices that transmit radio frequencies locations across the continental which pilots of properly equipped air- United States. Loran-C allows pilots craft translate into point-to-point to navigate without using a specific guidance and position information. facility. With a properly equipped air- The types of electronic navigational craft, pilots can navigate to any air-

1-12 port in the United States using Loran- In most situations, under VFR and ba- C. sic radar services, the pilot is responsible for navigation and choosing the GPS was initially developed by the arrival and departure flight paths to United States Department of Defense and from the airport. The results of for military navigation around the individual pilot navigation for se- world. However, GPS is now used ex- quencing and collision avoidance are tensively for a wide variety of civilian that aircraft do not fly a precise flight uses, including the civil aircraft navi- path to and from the airport. There- gation. fore, aircraft can be found flying over a wide area around the airport for se- GPS uses satellites placed in orbit quencing and safety reasons. around the globe to transmit electronic signals, which pilots of properly While aircraft can be expected to op- equipped aircraft use to determine al- erate over most areas of the airport, titude, speed, and navigational infor- the density of aircraft operations is mation. This provides more freedom higher near the airport. This is the in flight planning and allows for more result of aircraft following the estab- direct routing to the final destination. lished traffic patterns for the airport. The traffic pattern is the traffic flow that is prescribed for aircraft landing Instrument Approach Procedures or taking off from an airport. The components of a typical traffic pattern Instrument approach procedures are a are upwind leg, crosswind leg, down- series of predetermined maneuvers wind leg, base leg, and final approach. established by the FAA, using electronic navigational aids that assist pi- a. Upwind Leg - A flight path parallel lots in locating and landing at an air- to the landing runway in the direc- port, especially during instrument tion of landing. flight conditions. H.A. Clark Memo- rial Field currently does not have any b. Crosswind Leg - A flight path at published instrument approach proce- right angles to the landing runway dures. off its upwind end.

c. Downwind Leg - A flight path par- Visual Flight Procedures allel to the landing runway in the direction opposite to landing. The All flights into and out of H.A. Clark downwind leg normally extends be- Memorial Field are currently con- tween the crosswind leg and the ducted under VFR. Under VFR flight, base leg. the pilot is responsible for collision avoidance. Typically, the pilot will d. Base Leg - A flight path at right make radio calls announcing his/her angles to the landing runway off its intentions and the position of the air- approach end. The base leg nor- craft relative to the airport. mally extends from the downwind

1-13 leg to the intersection of the ex- The FAA has established that piston- tended runway centerline. powered aircraft operating in the traffic pattern fly at 1,000 feet above the e. Final Approach - A flight path in ground (or 7,700 feet MSL) when on the direction of landing along the the downwind leg. Turbine-powered extended runway centerline. The aircraft fly the downwind leg at 8,800 final approach normally extends feet MSL. The traffic pattern altitude from the base leg to the runway. is established so that aircraft have a predictable descent profile on base leg Essentially, the traffic pattern defines to final for landing. the side of the runway on which aircraft will operate. For example, at H.A. Clark Memorial Field, Runway Area Airports 18 and Runway 36 have an established left-hand traffic pattern. For A review of public-use airports within these runways, aircraft make a left the vicinity of H.A. Clark Memorial turn from base leg to final for landing. Field has been made to identify and Therefore, aircraft operating to Run- distinguish the type of air service pro- way 18 remain east of the runway. vided in the area surrounding the air- For Runway 36, aircraft remain west port. Information pertaining to each of the runway. airport was obtained from FAA records. While the traffic pattern defines the direction of turns that an aircraft will Valle Airport is located approxi- follow on landing or departure, it does mately 21 nautical miles north of H.A. not define how far from the runway an Clark Memorial Field. Valle Airport is aircraft will operate. The distance lat- privately owned and operated by the erally from the runway centerline an Grand Canyon Valle Corporation; aircraft operates or the distance from however, it is open to the public. the end of the runway is at the discre- There is a single runway available for tion of the pilot, based on the operat- use. Runway 1-19 is 4,199 feet long ing characteristics of the aircraft, and 45 feet wide. Valle Airport does number of aircraft in the traffic pat- not have an operating ATCT. There tern, and meteorological conditions. are two published GPS instrument The actual ground location of each leg approaches and a single VOR/DME of the traffic pattern varies from op- instrument approach into Valle Air- eration to operation for the reasons of port. There are five based aircraft at safety, navigation, and sequencing, as Valle Airport. A full range of general described above. The distance that aviation services are available at the the downwind leg is located laterally airport. from the runway will vary based mostly on the speed of the aircraft. Flagstaff Pulliam Airport is located Slower aircraft can operate closer to approximately 27 miles southeast of the runway as their turn radius is H.A. Clark Memorial Field. Flagstaff smaller. Pulliam Airport is owned and operated by the City of Flagstaff. A single run- 1-14 way 6,999 feet long by 150 feet wide is feet. Seven of the hangar facilities are available for use. The Flagstaff open conventional hangars, with the Pulliam ATCT is in operation from remaining two hangars configured as 6:00 a.m. to 9:00 p.m. between April 1st T-hangars. The two T-hangars are and September 30th, and from 7:00 able to house a single aircraft. All of a.m. to 7:00 p.m. between October 1st the hangar facilities are located off and March 31st. There are 134 based Taxiway E on the east side of the air- aircraft at Flagstaff Pulliam Airport. port. A full range of general aviation services are available at the airport. Fixed Base Operators (FBOs)

LANDSIDE FACILITIES Aviation Services of Northern Arizona serves as the airport’s full-service Landside facilities are the ground- FBO. Aviation Services of Northern based facilities that support the air- Arizona currently occupies the 5,530 craft and pilot/passenger handling square foot conventional hangar north functions. These facilities typically of the fuel storage facility. The follow- include aircraft storage/maintenance ing is a list of services provided by hangars, aircraft parking aprons, and Aviation Services of Northern Arizona. support facilities such as fuel storage, automobile parking, and roadway ac- Aviation Fuel (100LL) cess. Landside facilities were previ- Line Services ously identified on Exhibit 1B. Aircraft Parking (Ramp or Tie- down) Aircraft Maintenance Terminal Building Courtesy Transportation Pilots Lounge The existing terminal building is lo- Public Telephone cated on the southeast side of the airport, adjacent to Airport Road. The terminal building was constructed in Apron and Aircraft Parking 2000 and encompasses approximately 3,000 square feet. It contains office The aircraft parking aprons at H.A. space, restrooms, and waiting areas Clark Memorial Field are located east for passengers. There are no tenants of Runway 18-36. The general avia- in the building; however, the City of tion apron area encompasses ap- Williams Airport Manager’s office is proximately 10,200 square yards, in- located in the terminal. cluding 15 tiedown spaces and access to the hangar facilities. A new section of apron is currently being constructed Aircraft Hangar Facilities and will encompass approximately 19,500 square yards. This new apron There are nine separate hangar build- will have locations for future T-hangar ings at H.A. Clark Memorial Field, to- development and aircraft parking. taling approximately 21,400 square The main apron adjacent to the termi-

1-15 nal facility encompasses approxi- Utilities mately 11,000 square yards and provides approximately 16 transient tie- The availability of utilities at the air- down spaces. port is an important factor in determining the development potential of the airport property. Of primary con- Fueling Facilities cern in the inventory investigation is the availability of water, sanitary Fuel storage tanks at H.A. Clark Me- sewer, and electricity. Some, if not all, morial Field are located above ground of these utilities will be necessary for on the main apron, as previously any future development. Water is shown on Exhibit 1B. The fuel island provided by the City of Williams via a consists of one self-serve storage tank, water storage tank located at the ter- which holds 8,000 gallons of 100LL minus of Airport Road. This tank is fuel. The fuel island is privately replenished by trucks as a dedicated owned by Aviation Services of North- water line is not available to the air- ern Arizona. port. Sanitary sewer is provided util- izing individual septic tank systems. Electrical power is supplied to the City Maintenance and Aircraft of Williams by Arizona Public Service. Rescue and Fire Fighting Telephone service is provided by Qwest. A natural gas pipeline runs Maintenance at H.A. Clark Memorial east to west through the airport prop- Field is performed by the City of Wil- erty, approximately 300 feet south of liams. City-owned equipment is used the Runway 36 end. This gas line is to perform maintenance when needed. owned by El Paso Gas Corporation. This equipment is maintained off the airport. Security Fencing and Gates There are no aircraft rescue and fire fighting (ARFF) facilities located on The airport perimeter and apron areas the airport. An ARFF vehicle was re- are equipped with 8-foot chain-link cently purchased and personnel are fencing with three strands of barbed- currently in the process of being wire. An automated access gate is lo- trained to respond to on-airport emer- cated near the Aviation Services of gencies using the ARFF equipment. Northern Arizona hangar at the ter- The local fire station located two miles minus of Airport Road. In addition to from the airport in Williams responds the automated access gate, there are to on-airport emergencies. A new five manual lock gates around the air- ARFF facility is planned to be con- port. structed adjacent to the north hangars.

1-16 ACCESS & CIRCULATION POPULATION

GENERAL ACCESS TO Population is a basic demographic H.A. CLARK MEMORIAL FIELD - element to consider when planning for SURROUNDING ROADS future needs of the airport. The State of Arizona has been one of the fastest The airport is located approximately growing states in the country. Table three miles north of Interstate High- 1D shows the total population growth way 40, and is accessible via Airport since 1990 for the State of Arizona, Road. Airport Road is a rural two- Coconino County, and the City of Wil- lane road in good condition, which liams. Arizona has grown at an an- runs from north to south and ap- nual average rate of 3.4 percent since proaches the airport from the south- 1990. Since 1990, the State of Arizona east. population has increased by 2.3 million. The population of the City of A designated paved vehicle parking lot Williams grew at an average annual providing 25 vehicle parking spaces is rate of 1.5 percent between 1990 and located east of the airport terminal 2005, increasing by more than 600 building. residents. During the same period, Coconino County’s population grew by more than 33,600 and at an average SOCIOECONOMIC PROFILE annual rate of 2.0 percent.

The socioeconomic profile provides a Population growth in Williams has general look at the socioeconomic been behind Coconino County and the makeup of the community that utilizes State of Arizona, historically. Be- H.A. Clark Memorial Field. It also tween 1990 and 2005, the state popu- provides an understanding of the dy- lation grew by 64.2 percent and the namics for growth and the potential county population grew by 34.7 per- changes that may affect aviation de- cent, whereas the Williams population mand. Aviation demand forecasts are grew by 24.3 percent. often directly related to the population base, economic strength of the region, and the ability of the region to sustain EMPLOYMENT a strong economic base over an extended period of time. Current demo- Employment opportunities affect mi- graphic and economic information was gration to the area and population collected from the Arizona Depart- growth. As shown in Table 1E, the ment of Economic Security, the City of City of Williams’ unemployment rate Williams, and the 1990 and 2000 cen- has been well below county, state, and sus reports. national levels over the last 14 years. Williams’ unemployment rate for 2005 was not available at the time of this study.

1-17 TABLE 1D Total Population State of Arizona, Coconino County, City of Williams State of Percent Coconino Percent City of Percent Year Arizona Change County Change Williams Change 1990 3,680,800 N/A 96,900 N/A 2,530 N/A 1991 3,767,000 2.3% 99,150 2.3% 2,620 3.6% 1992 3,858,825 2.4% 101,350 2.2% 2,625 0.2% 1993 3,958,875 2.6% 104,700 3.3% 2,635 0.4% 1994 4,071,650 2.8% 107,500 2.7% 2,680 1.7% 1995 4,228,900 3.9% 109,400 1.8% 2,690 0.4% 1996 4,462,300 5.5% 113,475 3.7% 2,705 0.6% 1997 4,600,275 3.1% 117,475 3.5% 2,735 1.1% 1998 4,764,025 3.6% 121,625 3.5% 2,800 2.4% 1999 4,924,350 3.4% 122,825 1.0% 2,845 1.6% 2000 5,130,632 4.2% 116,320 -5.3% 2,842 -0.1% 2001 5,319,895 3.7% 122,770 5.5% 2,885 1.5% 2002 5,472,750 2.9% 125,420 2.2% 2,910 0.9% 2003 5,629,780 2.9% 128,925 2.8% 2,910 0.0% 2004 5,833,685 3.6% 129,570 0.5% 2,940 1.0% 2005 6,044,985 3.6% 130,530 0.7% 3,145 7.0% Arizona Population Growth Rates 1990 – 2005 Change in Total 1990 – 2005 Average Annual Population Population Growth Rate 2,364,185 3.4% Coconino County Population Growth Rates 1990 – 2005 Change in Total 1990 – 2005 Average Annual Population Population Growth Rate 33,630 2.0% Williams Population Growth Rates 1990 – 2005 Change in Total 1990 – 2005 Average Annual Population Population Growth Rate 615 1.5% Source: Arizona Department of Economic Security, 2005

TABLE 1E Unemployment Rates City of Williams, Coconino County, State of Arizona, The United States Year City of Williams Coconino County State of Arizona United States 1990 3.5% 7.8% 5.5% 5.6% 1991 3.5% 7.3% 5.8% 6.8% 1992 4.5% 9.4% 7.6% 7.5% 1993 4.1% 8.7% 6.3% 6.9% 1994 4.4% 9.2% 6.4% 6.1% 1995 3.6% 7.8% 5.1% 5.6% 1996 4.1% 8.7% 5.5% 5.4% 1997 4.0% 8.4% 4.6% 4.9% 1998 3.4% 7.3% 4.1% 4.5% 1999 3.2% 6.7% 4.4% 4.2% 2000 2.7% 5.8% 4.0% 4.0% 2001 2.5% 5.4% 4.7% 4.7% 2002 2.7% 5.9% 6.2% 5.8% 2003 3.0% 6.4% 5.6% 6.0% 2004 2.8% 6.1% 4.8% 5.5% 2005 N/A 5.1% 4.7% 5.1% Source: Arizona Department of Economic Security, 2005

1-18 Table 1F summarizes total employ- were the mining and construction sec- ment by sector for Coconino County tor (9.6 percent annually), manufac- from 2001 to 2005. As shown in the turing (7.2 percent annually), and ser- table, with the exception of 2003, Co- vices and miscellaneous (3.5 percent conino County recorded growth in to- annually). The only sector experienc- tal employment each year. Over the ing a negative growth rate was the four-year period, total employment government sector, which declined 1.6 grew by 4,500, a 7.7 percent increase. percent annually over the same four- The sectors that experienced the year time period. greatest average annual growth rate

TABLE 1F Employment By Sector (Non-Farm) Coconino County Average Annual Growth Sector 2001 2002 2003 2004 2005 Rate Manufacturing 2,800 2,800 3,000 3,200 3,700 7.2% Mining and Construction 2,700 2,800 2,900 3,400 3,900 9.6% Trade, Transportation, and Utilities 9,100 9,400 9,200 9,200 9,500 1.1% Information 500 500 500 500 500 0.0% Financial Activities 1,500 1,500 1,500 1,600 1,600 1.6% Services and Miscellaneous 21,800 21,900 22,500 23,700 25,000 3.5% Government 20,200 20,000 18,600 18,400 18,900 -1.6% Total Employment* 58,600 58,900 58,200 60,000 63,100 1.9% Source: Arizona Department of Economic Security, 2005

PER CAPITA CLIMATE PERSONAL INCOME Weather plays an important role in Per capita personal income (PCPI) for the operational capabilities of an air- Coconino County is summarized in port. Temperature is an important Table 1G. PCPI is determined by di- factor in determining runway length viding total income by population. For required for aircraft operations. The PCPI to grow significantly, income percentage of time that visibility is growth must outpace population impaired due to cloud coverage is a growth. As shown in the table, PCPI major factor in determining the use of has grown significantly in Coconino instrument approach aids. County since 1990, growing at an average annual rate of 4.8 percent be- Temperatures typically range from 46 tween 1990 and 2003. The State of to 83 degrees Fahrenheit (F) during Arizona has also seen an increase in the summer months. The hottest PCPI, at 3.7 percent annually over the month is typically July with an aver- same time period. age high of 83 degrees. August is the

1-19 wettest month averaging 3.21 inches Williams averages 12.5 inches of of precipitation annually. January is snowfall annually. Table 1H summa- the coldest month with average mini- rizes typical temperature and precipi- mum temperatures around 19 degrees. tation data for the region.

TABLE 1G Per Capita Personal Income Coconino County and Arizona Year Coconino County Arizona 1990 $13,847 $17,005 1991 $14,386 $17,260 1992 $15,314 $17,777 1993 $15,573 $18,293 1994 $16,422 $19,212 1995 $17,034 $19,929 1996 $17,975 $20,823 1997 $18,883 $21,861 1998 $20,191 $23,216 1999 $21,232 $24,057 2000 $22,814 $25,660 2001 $23,710 $26,214 2002 $24,331 $26,680 2003 $25,345 $27,232 Average Annual Growth Rate 1990-2003 4.8% 3.7% Source: U.S. Department of Commerce, Bureau of Economic Analysis

TABLE 1H Temperature and Precipitation Data Williams, Arizona Temperature (Fahrenheit) Precipitation Snow Fall Mean Maximum Mean Minimum (Inches) (Inches) January 45.1 19.6 2.03 16.2 February 47.5 21.8 2.21 13.6 March 52.2 25.4 2.10 13.6 April 61.0 31.4 1.32 5.8 May 70.0 38.5 0.71 1.3 June 80.4 46.2 0.47 0.0 July 83.7 53.0 2.84 0.0 August 80.9 52.0 3.21 0.0 September 75.8 46.0 1.75 0.0 October 66.3 35.6 1.47 0.9 November 55.0 26.1 1.44 5.4 December 47.1 20.6 2.05 12.5 Annual 63.7 34.7 21.58 69.3 Source: Western Regional Climate Center

1-20 ENVIRONMENTAL WETLANDS INVENTORY The U.S. Army Corps of Engineers Available information about the exist- (ACOE) regulates the discharge of ing environmental conditions at H.A. dredge and/or fill material into waters Clark Memorial Field has been de- of the United States, including adja- rived from the 1997 Environmental cent wetlands, under Section 404 of Assessment for Proposed Development, the Clean Water Act. as well as from internet resources, agency maps, and existing literature. Wetlands are defined by Executive Or- The intent of this task is to inventory der 11990, Protection of Wetlands, as potential environmental sensitivities “those areas that are inundated by that might affect future improvements surface or groundwater with a fre- at the airport. quency sufficient to support and under normal circumstances does or would support a prevalence of vegetation or HISTORIC AND aquatic life that requires saturated or CULTURAL RESOURCES seasonally saturated soil conditions for growth and reproduction.” Catego-

ries of wetlands includes swamps, Previous coordination with the State marshes, bogs, sloughs, potholes, wet Historic Preservation Office (SHPO) meadows, river overflows, mud flats, and the Hopi Tribe indicated that po- natural ponds, estuarine area, tidal tential presence of cultural resources overflows, and shallow lakes and in the area is highly likely. As part of ponds with emergent vegetation. Wet- the 1997 Environmental Assessment lands exhibit three characteristics: (EA), a cultural resource assessment hydrology, hydrophytes (plants able to was conducted on portions of airport tolerate various degrees of flooding or property proposed for development, as frequent saturation), and poorly well as land proposed for acquisition. drained soils. Results of the study identified three historic archaeological sites, one iso- Correspondence included in the 1997 lated feature, and 15 isolated occur- EA received from the Arizona Game rences. None of these sites were de- and Fish Department and the North- termined to be to be potentially eligi- ern Arizona Council of Governments ble for inclusion to the National Regis- indicated that Threemile Lake is a ter. A copy of this report was for- naturally occurring wetland. No other warded to the Forest Service, SHPO, wetland areas are known. and the Hopi Tribe. The SHPO and the Forest Service concurred with the findings; no response was received from the Hopi Tribe. FLOODPLAINS

As defined in the FAA Order 5050.4A, floodplains consist of “lowland and

1-21 relatively flat areas adjoining inland Domestic sewage is currently handled and coastal water including flood by one individual sewage disposal sys- prone areas of offshore islands, includ- tem which is connected to the general ing at a minimum, that area subject to aviation terminal facility. one percent or greater chance of flooding in any given year.” Federal agen- The airport is considered an industrial cies are directed to take action to re- facility and therefore is required to be duce the risk of flood loss, minimize covered under a National Pollutant the impact of floods on human safety, Discharge Elimination System health and welfare, and restore and (NPDES) general permit. Previous preserve the natural and beneficial concerns expressed by the Arizona values served by floodplains. Flood- Department of Environmental Quality plains have natural and beneficial (ADEQ) indicated that a surface hy- values, such as providing ground wa- draulic connection exists between the ter recharge, water quality mainte- Colorado River and the airport via nance, fish, wildlife, plants, open Havasu Creek, Cataract Creek, and space, natural beauty, outdoor recrea- other unnamed washes. The ADEQ tion, agriculture and forestry. FAA has submitted recommendations for Order 5050.4A (12) (c) indicates that the airport to lessen water quality im- “if the proposed action and reasonable pacts to these tributaries. alternatives are not within the limits of a base floodplain (100-year flood area),” that it may be assumed that BIOTIC RESOURCES there are no floodplain impacts. The limits of base floodplains are deter- Biotic resources refer to those flora mined by Flood Insurance Rate Maps and fauna (i.e., vegetation and wild- (FIRM) prepared by the Federal Emer- life) habitats which are present in an gency Management Agency (FEMA). area. Impacts to biotic communities As the airport is surrounded by land are determined based on whether a which is managed by the Forest Ser- proposal would cause a minor perma- vice, floodplain mapping has not been nent alteration of existing habitat or completed. Within the 1997 EA, it whether it would involve the removal was determined through conversations of a sizable amount of habitat, habitat with the Forest Service that the air- which supports a rare species, or a port does not fall within a 100-year small, sensitive tract. floodplain. A search of the U.S. Fish and Wildlife Service website indicated 20 species WATER SUPPLY AND QUALITY that are listed as threatened or endangered or as a candidate species. An The airport has an on-airport tank initial review of the habitat of these which holds 250,000 gallons of water. species indicated that four species This tank is used as both fire protec- have habitat in close vicinity of the tion and potable water. airport. Table 1J summarizes these species.

1-22

TABLE 1J Listed Threatened and Endangered Species in Coconino County Common Name Status Habitat Bald eagle Threatened Large trees or cliffs near water Black-footed ferret Endangered Grassland Plains; usually associated with prairie dogs Mexican spotted owl Threatened Nests in canyons and dense forests with multi-layered foliage structure. Yellow-billed cuckoo Candidate Large blocks of riparian woodlands Source: U.S. Fish and Wildlife Service

AIR QUALITY on crops, vegetation, wildlife, visibility, and climate, as well as affects on The Environmental Protection Agency materials, economic values, and on (EPA) has adopted air quality stan- personnel comfort and well-being. dards that specify the maximum per- missible short-term and long-term According to the EPA ‘Greenbook’ concentrations of various air contami- website, Coconino County is in at- nants. The National Ambient Air tainment for all criteria pollutants. Quality Standards (NAAQS) consist of primary and secondary standards for six criteria pollutants which include: Public Airport Disclosure Map

Ozone (O3), Carbon Monoxide (CO),

Sulfur Dioxide (SOx), Nitrogen Oxide Arizona Revised Statutes (ARS)

(NOx), Particulate Matter (PM10), and 28-8486, Public Airport Disclosure, Lead (Pb). provides for a public airport owner to publish a map depicting the "territory Primary air quality standards are es- in the vicinity of the airport." The ter- tablished at levels to protect the public ritory in the vicinity of the airport is health and welfare from any known or defined as the traffic pattern airspace anticipated adverse effects of a pollut- and the property that experiences 60 ant. All areas of the country are re- day-night noise level (DNL) or higher quired to demonstrate attainment in counties with a population of more with NAAQS. Arizona has adopted than 500,000, and 65 DNL or higher the federal ambient air quality stan- in counties with less than 500,000 dards. residents. The DNL is calculated for the 20-year forecast condition. ARS Air contaminants increase the aggra- 28-8486 provides for the State Real vation and the production of respira- Estate Office to prepare a disclosure tory and cardiopulmonary diseases. map in conjunction with the airport The standards also establish the level owner. H.A. Clark Memorial Field of air quality which is necessary to does not have a public airport disclo- protect the public health and welfare, sure map on file. including among other things, affects 1-23 Storm Water Pollution does not currently have a SWPPP Prevention Plan (SWPPP) plan.

Stormwater runoff is simply rainwater or snowmelt that runs off the land and Spill Prevention Control into streams, rivers, and lakes. When and Countermeasure (SPCC) Plan stormwater runs through sites of industrial or construction activity it may Title 40 of the Code of Federal Regula- pick up pollutants and transport them tions (CFR) Part 112, defines the into national waterways and affect EPA’s Oil Pollution Prevention Rule. water quality. The purpose of the rule is to prevent the discharge of oil into the navigable Mandated by Congress under the waters of the United States or adjoin- Clean Water Act, the National Pollut- ing shorelines as opposed to response ant Discharge Elimination System and cleanup after a spill occurs. The (NPDES) Stormwater Program is a EPA revised these prevention rules on comprehensive two-phased national July 17, 2002, to establish the Spill program for addressing the non- Prevention, Control and Countermea- agricultural sources of stormwater sure (SPCC) Plan to meet the purpose discharges which adversely affect the of this rule. All SPCC Plans were to quality of our nation's waters. The be completed by August 18, 2003. program uses the NPDES permitting mechanism to require the implemen- Before a facility is subject to the SPCC tation of controls designed to prevent rule, it must meet the following three harmful pollutants from being washed criterions: by stormwater runoff into local water bodies. 1) It must be non-transportation- related, The State of Arizona has been dele- gated the authority to administer the 2) It must have an aggregate above- NPDES program. Administratively, ground storage capacity greater this is the responsibility of the Arizona than 1,320 gallons or a completely Department of Environmental Quality buried storage capacity greater (ADEQ). The ADEQ’s Arizona Pollut- than 42,000 gallons, and ant Discharge Elimination System (AZDES) program now has regulatory 3) There must be a reasonable expec- authority over discharges of pollutants tation of a discharge into or upon to Arizona surface water. navigable waters of the United State or adjoining shorelines. Under the regulations, separate permits are required for construction ac- H.A. Clark Memorial Field does not tivities that disturb one or more acres currently have an SPCC plan. of land and for general stormwater permits. H.A. Clark Memorial Field

1-24 Table 1K provides a summary of the administrative plans and studies dis- status of the various regulatory and cussed above.

TABLE 1K Summary of Regulatory and Administrative Plans, Studies, and Facility Improvements Description Status Storm Water Pollution and Prevention Plan (SWPPP) No plan currently in place. Spill Prevention, Control and Countermeasure No plan currently in place. (SPCC) Plan Minimum Standards No minimum standards in place. Airport Rules and Regulations No published airport rules and regulations. Height Zoning Ordinance There is currently no height zoning ordinance in place for the airport. Public Airport Disclosure Map There is currently no public airport disclosure map. Aircraft Wash Rack There is no aircraft wash rack at the airport.

LAND USE specific to new construction near the airport or within the runway ap- Exhibit 1E depicts the existing land proaches. use around the airport as derived from the 2003 Williams General Plan. The majority of the land surrounding the SUMMARY airport is designated as national forest land. Most of the developed areas of The information discussed on the pre- Williams are located south of the air- vious pages provides a foundation port. Future land use is also depicted upon which the remaining elements of on Exhibit 1E; however, land use in the planning process will be con- the vicinity of the airport is shown to structed. Information on current air- continue to be reserved as national port facilities and utilization will serve forest land. as a basis, with additional analysis and data collection, for the development of forecasts of aviation activity HEIGHT AND HAZARD ZONING and facility requirement determina- tions. The inventory of existing condi- Height and hazard zoning establishes tions is the first step in the process of height limits for new construction determining those factors which will near an airport and within the runway meet projected aviation demand in the approaches. Height and hazard zon- community and the region. ing ordinances are typically based on Federal Aviation Regulation (FAR) Part 77, which defines imaginary sur- DOCUMENT SOURCES faces surrounding the airport that are to remain free of obstructions for the A variety of sources were used in the purpose of safe air navigation. Cur- inventory of existing facilities. The rently, the City of Williams has no following listing presents a partial list height and hazard zoning restrictions of reference documents. The list does 1-25 City of Williams, AZ 04MP12-1E-3/31/06 H.A.H.A. ClarkClark MemoricalMemorical FieldField

NORTH

NOT TO SCALE

SOURCE: City of Williams General Plan, 2003

EXISTING LAND USE FUTURE LAND USE Residential Lakes/Reservoirs Rural Residential (0-2 du/ac) Industrial L Multi-Family National Forest Land Residential (3-5 du/ac) Mixed Resort/Residential E Commercial City Limits Multi-Family (6-15 du/ac) Mixed Use/Commercial G Public/Industrial Roads Commerical E N Recreational/Open Space Trails Public/Institutional D Industrial Railroad Recreational/Open Space H. A. CLARK MEMORIAL FIELD

Exhibit 1E EXISTING & FUTURE LAND USE not reflect some information collected City of Williams General Plan; 2003 by airport staff or through interviews with airport personnel. FAA 5010 Form, Airport Master Re- cord; 2005 Aircraft & Airmen CD, Avantex, Inc. (February 2004) H.A. Clark Memorial Field Airport Master Plan; 1995 AirNAV Airport information, website: http://www.airnav.com National Plan of Integrated Airport Systems (NPIAS), U.S. Department of Airport/Facility Directory, Western Transportation, Federal Aviation Ad- U.S., U.S. Department of Transporta- ministration, 2001-2005 tion, Federal Aviation Administration, National Aeronautical Charting Of- U.S. Department of Commerce, Bu- fice, edition, December 22, 2005 Edi- reau of Economic Analysis tion Western Regional Climate Center; Arizona Department of Economic Se- 2005 curity; 2005

Arizona Department of Transportation

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