Request For Proposal -- Scope of Work Orchard Beach Utility Systems Replacement -- 751/12053.GAG

OVERVIEW

Provide complete design and engineering, bidding and construction documents, and construction administration services to replace and upgrade all Utility Systems at Orchard Beach State Park (see Attachment #1 & #2 below). Orchard Beach State Park is located on a bluff overlooking Lake with 167 modern campsites and two cabins available to the public. A full park staff manages the facility during the summer months. The utility systems to be included in this work are: sanitary sewers, collection, pumping, and drain field; potable water, supply wells and distribution; electrical power distribution; storm water, collection and retention. This work is to include a Phase 100 Study, Phase 400 Preliminary Design, Phase 500 Final Design and Bidding Documents, Phase 600 Construction Administration Office Services, and Phase 700 Construction Administration Field Services.

SANITARY SEWER SYSTEM

The sanitary sewer system consists of approximately 4400 lineal feet of vitrified clay tile as well as various collection points and manholes. The sewer lines are gravity fed into a pump station that transfers the waste material into a sanitary drain field located 400 feet to the south of the campground. A plan of the existing sanitary system is shown on Attachment #3 below.

The sanitary sewer system lines and pump station were constructed in the WPA era and have been in use since that time. The half dozen sewer line failures during each use season have become a maintenance burden for the park staff. Current septic tank, splitter box, wet pit/dry pit pump station and absorption field were also constructed in 1940. The pump station has confined space entry requirements in both the wet well and dry well, the pumps are 30 plus years old, and the wet well entry hatch from the dry well area is not sealed.

Manistee County Health Department annual inspections of the sanitary drain field have not indicated any problems to date and it seems to handle the current pumped flow without any treatment issues. An assessment of the drain field is to be conducted under the Phase 100 Study portion of this work in cooperation with the County Health Department. This assessment will determine the actual status of the drain field, evaluate its ability to continue to properly treat waste material from the campground, and provide a recommendation on replacing the absorption field.

Since the number of campsites has been reduced since the park was originally built, the assumption has been that the sanitary loading on the system has not increased and the piping size, treatment area, and pumping capacity are adequate to handle the waste treatment requirements. This should be evaluated in the Phase 100 Study using current standards and codes with recommendations given regarding system sizing equirements. The existing septic tanks should also be included in this evaluation, both for capacity and structural integrity.

The two major known components of the sanitary sewer system work scope are replacement of the wastewater pump station and sewer distribution lines. Preliminary proposed plans call for constructing a new submersible pump station adjacent to the existing station; connecting the

Page 1 of 9 new station to the existing septic tank outlet box; re-using the existing septic tanks, splitting box and absorption beds.The existing pump station structure to be retained for other use by the park. Sewer distribution lines to be replaced using open trench construction to obtain the necessary slope lines for effective sewage flow. This is subject to change per findings and recommendations from the Phase 100 evaluations of the existing drain field, capacity requirements, septic tank condition, and site topographic survey. Additional sanitary sewer and site work associated with relocating the Sanitation Dump Station is discussed below in the Other Design Tasks section.

POTABLE WATER SYSTEM

The water supply system consists of a variety of sizes of galvanized steel pipe feeding the campground drinking fountains, park offices, toilet/shower buildings, sewer pump house and sanitation dump station. The water system is supplied by a 6” submersible water well with above ground pressure storage tanks housed in a building on site. A plan of the existing water distribution system is shown on Attachment #4 below.

The water distribution system is also old and should be replaced as soon as possible. The well house has undergone recent modifications with the replacement of an underground storage tank with new above ground water storage/pressure tanks. The water well and water lines have been updated throughout recent years.

According to the City of Manistee Manager, there are no plans to run water supply lines from the city of Manistee to the park site in the forseeable future. The park is located about two miles outside of the city limits and the parks water supply system will remain self-contained.

New water lines constructed from HDPE material are proposed to replace the existing galvanized steel lines. Piping will be “jack and bored” in place to minimize disturbance to the existing campground as much as possible. The park would like to add an additional supply well to support the park Headquarters area. This system should be interconnected with the campground system to provide mutual backup capability in case of failure or shutdown. A new water supply line is needed to the headquarters.

Since the number of campsites has been reduced since the park was originally built, the assumption has been that the potable water requirement has not increased and the exisitng systems sizing and capacity are adequate. This should be evaluated in the Phase 100 Study using current standards and codes with recommendations given regarding system sizing requirements. These recommendations will be included in the final system design as required.

ELECTRICAL DISTRIBUTION SYSTEM

The campground currently has a total of 167 camping sites all with access to 20Amp/30Amp electrical hookups. Most electrical hookup pedestal are shared by two or more adjacent sites. The campround does not currently have any 50Amp electrical hookups required for larger recreational vehicles. Utility distribution lines serving the area and the site run along M-110 adjacent to the park. A plan of the existing Electrical distribution system is shown on Attachment #5 below.

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The work scope for the electrical distribution system includes: upgrade and modernize the electrical power distribution system throughout the campground; provide individual electrical hookups for each campsite; upgrade between 12 and 20 sites to 50Amp hookups; all remaining sites will get new 20Amp/30Amp hookups.The exact campsite locations for 50Amp hookups will be defined during the design process.

The existing primary electrical service must be evaluated in the Phase 100 Study for adequate capacity per the above changes and recommendations for upgrades given. The newer electrical feed to the wellhouse should also be evaluated for suitability for an additional well. The quantity of 50Amp hookups to be added will be addressed in the Study through evaluation of the Campground Reservation System (CRS) statistics for current usage and anticipated revenues versus utility costs for increasing service and site fees.

STORM WATER

The park experiences a continuous problem with flooding in large areas of the campground. The campground is located on a valley over clay soil and is difficult to adequately drain. It is supected that the lack of storm water control combined with the sites characteristics may be contributing to lake bank and bluff erosion.

An assessment of the sites Storm Water runoff and retention problems with recommendations for constructing control measures will be included in the Phase 100 Study. The recommended control measures will be evaluated on their cost and schedule impact and permitting requirements. Design and construction of reasonably cost effective storm water controls from the Study may be added to the project scope. Extensive control and remediation of lakeshore erosion problems is outside the scope of this project however.

OTHER DESIGN TASKS

Full Hookup Sites Design: Full hook up sites (water & sewer & 50Amp electrical) for up to 12 sites including the Campground Host site. This aspect will be budget dependent on whether or not funding allows for construction.

Relocate the Sanitation Dump Station: Move the sanitation station towards the contact / registration building (to the north towards the day use parking lot). This will include some road and circulation layouts and possible park entrance and drive reconfiguration. The Phase 100 Study will include two or three concepts for evaluation and selection per budget constraints.

GENERAL

Funding and Budget: We are confident that the construction funding is adequate.

Project Delivery: The Project will be a standard Design—Bid--Construction process.

Site Survey: a complete Topographic Site Survey should be included in the scope of work. This information will be necessary for the sanitary sewer design and storm water evaluation.

Site Conditions: Material staging area is available on site.

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Permits: Include all required permits and coordination including State of Michigan DLARA Bureau of Construction Codes, DEQ Campground Construction Permit, Manistee County Health Department, etc…

Documentation: Complete as-built record drawings exist on-site, mostly in paper form, some in Auto CAD. We will require all new as-built record drawings to be supplied in Auto CAD format.

Safety and Security: Contractors and professionals need business ID’s while on site. All site visits to be arranged through the park staff. Contractor must keep work and staging areas clean and secured.

Schedule: Target for construction is approximately October 2013 to May 2014 with Substantial Completion before Memorial Day to be ready for the summer camping season.

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Attachment #1 – Orchard Beach State Park Site Map

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Attachment #2 – Campground Map

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Attachment #3 – Sanitary Sewer Layout

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Attachment #4 – Potable Water Distribution Layout

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Attachment #5 – Electrical Distribution Layout

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