2 Technical Specifications.pdf

Technical Specifications Shasta-Trinity NF Critical Water System Repairs – Ph 1

2 – TECHNICAL SPECIFICATIONS

ACKERMAN CAMPGROUND

2.1 Demolish and Remove Existing Dump Station, Pump Existing Septic Tanks and

Prepare Site.

Work includes saw-cutting and removal of existing pavement for new pad, removing existing concrete dump pad & pedestal, removing and disposal of interfering existing waste line. Locate point of connection (POC) and snake and clear existing 6” ACP waste line from POC to existing 8,000 gallon septic. Pump out & remove waste in upstream chamber of 8000 gallon septic tank and re-fill as described on Project Plans.

Locate existing 1,500 gallon septic tank (near campsite #19), remove and dispose riser/lid and pump out and remove waste in holding chamber. Backfill tank with sand complete and to within 6-inches of existing grade. Place remaining backfill to grade with native material and compact.

Prepare and cmpact subgrade for base/sand material at new pavement and for new septic tank.

2.2 Furnish and Install 2500 Gallon Septic Tank, Waste Line Plumbing, Connections, and Dump Hatch

Work includes furnishing and installing 2500 gallon pre-cast concrete septic tank, plus risers & lids, and all waste and vent piping, transitions and connections for a complete system.

Excavation for septic tank shall be only as is required for safe installation. Side walls of excavation should not be more than 12” from tank wall nor less than 6”. A minimum of 6” sand shall be placed and compacted and leveled for bedding of tank. Bottom of tank shall be set on bed of sand and shall be leveled in place. Backfill around tank shall be clean sand up to within 6” of top of tank. Remaining backfill shall be placed as described for pipe backfill on the Project Plans. Do not exceed backfill limitations as stated by the septic tank manufacturer. Excess excavation spoils shall be disposed of off Government Land.

2,500 gallon pre-cast septic tank shall be Jensen Precast Model JS2500, two chamber, fully plumbed with 4” sanitary Tees and 4” Optional Side Inlets. Access risers shall include tank adaptors, risers and safety lids as manufactured by Tuf-Tite, Inc. Upper rim of riser shall not be less than 1” above grade nor more than 4” above grade.

Waste and vent piping and fittings shall be ABS solid wall Schedule 40 DWV with ABS compatible glued joints. 2” GSP vent pipe shall be schedule 40. Connections to existing systems or dissimilar materials shall be made with standard industry transition/connection couplings. Maintain uniform gradients and smooth pipe flow lines to avoid waste “catch” points.

Cleanouts to be two-way and installed in accordance with City of Redding Standard 302.00 “Lateral Cleanout”.

4” cast iron waste dump hatch body to be cast iron, epoxy coated, for exposure to corrosive environment. Lid cover shall be cast bronze, foot operated, self-closing, and when foot operated shall open fully to allow for unimpeded connection of RV hookup to dump. Rim of hatch to be set to allow flush (no lip) adjacency to new concrete apron.

2.3 Furnish and Install Hydrant Tower, Related Plumbing & Signage

Work includes furnishing and installing hydrant tower wash down system as manufactured by Murdock Model M-275-RV with double ball check valve, vacuum breaker assemblies and all related plumbing and signage. Hydrant shall be Murdock-Super Secure mode M- 275-RV with (BFH) double ball check valve and vacuum breaker. Unit shall be capable of year-round use in freezing weather. Unit shall extend below grade level so that centerline of supply inlet is positioned at or below frost line (minimum 24”). Inlet shall have 3/4" NPT male connection. Water shall be gravity-evacuated from inner supply column when valve is shut off. Valve shall be lever operated. Lever shall be fabricated of one-piece iron casting finished with a heavy grade of oil-based green enamel. Stock, top, and base shall be fabricated of heavy, one-piece iron castings finished with a heavy grade of oil-based green enamel. Inner supply assembly shall incorporate solid-brass castings.

All solid brass castings shall conform to ASTM standards B61 and B62. Lead-free castings are used in all waterways. Outer casing shall be black iron pipe, finished with a heavy grade of oil-based green enamel. Hydrant shall consist of internal supply line and a surrounding outer casing pipe for protection of waterway. Nozzle shall be solid brass casting, threaded for 3/4” NPS hose connection.

Self-coiling hose shall be provided with the hydrant.

All plumbing from existing supply line to connection to hydrant shall be standard galvanized steel pipe (GSP) for potable water systems, except that valves to be brass ball valves for potable water systems. Valve Boxes shall be of the size and type indicated on the Project Plans.

Signage shall consist of the following:

Furnish and Install 24”x24” aluminum sign white on brown background with the following:

• Dump Station Symbol

• Wording: “DANGER - Water not to be used for drinking or domestic purposes.

“Instructions:

1. Secure drain hose to RV holding tank.

2. Place drain end of hose into sewer opening while holding cover open with foot or device.

3. Open RV tank drain valve until empty.

4. When finished, rinse concrete apron to drain into sewer opening and close cover.

Furnish and Install 12”x9” aluminum sign Blue or Black on White with the following:

• Non-Potable Water

Wording and symbology shall be factory machine lettered and mounted to aluminum backing, and appropriately sized and spaced as to maximize letter visibility within the available sign dimensions. Signs shall be installed and mounted as shown on drawings.

2.4 Furnish and Install Reinforced Concrete Pad, Concrete Curbing and Related

Concrete Work

Work includes furnishing and placing reinforcing steel, concrete formwork; furnishing placing and finishing concrete all as shown on the plans and as described herein.

Concrete to be minimum 3000 psi concrete. Reinforcing shall be Grade 60 No. 4 bars.

Concrete apron for dump hatch drainage shall be as indicated on the plans and drain towards the dump hatch. Concrete shall be cast and finished smooth and provide a no-lip flush connection with the rim of the dump hatch.

2.5 Furnish and Install Yard Water Faucet and System Drain

Excavate, remove and dispose interfering portions of existing water system associated with the work to be installed. Furnish and install GSP piping, fittings, unions, bushings and valve boxes as shown on the plans and as described herein. Shot off valves to be full port brass ball valves for portable water systems. Swing check valve to be brass. All materials shall be NSF approved for potable water systems.

Trenching in paved areas, across paved roadways or parking stalls shall be backfilled with 2-sack sand cement slurry to within 6” of final grade. Final cap to be concrete placed to flush with adjacent existing grade and broom finished. See Project Plans for related and backfill requirements

Wood posts, risers and paddle valves to be as shown on the Project Plans.

2.6 Furnish and Install 1/2” Brass Paddle Valve

½” paddle valves shall be self-closing, no thread spigot as manufactured by HAWS Model 6252EHLF and meeting ADA/ABA requirements and NSF requirements for potable water systems.

2.7 Furnish and Install 6” Diameter GSP Bollard Protection

Bollard protection shall consist of 6” GSP set in concrete and filled with concrete and marked with yellow reflective tape, all as shown on the Project Plans. .

2.8 Disinfect, Sample & Test Potable Water System.

Disinfection shall include chlorinating storage tank with NSF 60 approved sodium hypochlorite to a minimum of 10 mg/l concentration in the tank and distribution system.

Allow 24 hours set time, dechlorinate, flush, sample and test for presence of total Coliform and E. Coli. Repeat as necessary until results indicate the absence of bacteria.

Sampling and testing shall be in accordance with California Code of Regulations, Title 22 Social Security, Division 4 Environmental Health. Water sampling and testing laboratory shall be certified by the State of California for public water systems.

TANNERY GULCH CAMPGROUND

2.9 Furnish and Install Three (3) – 2” Brass Ball Valves in 24x36” Valve Box.

Excavate, remove and dispose interfering portions of existing water system associated with the work to be installed. Furnish and install 2” full port brass ball valves for potable water along with GSP unions (3 min), GSP pipe nipples, bushings and connections to existing and proposed systems as shown on the Project Plans. Furnish and install valve boxes and bed/backfill be as shown on the Project Plans.

2.10 Furnish and Install 2” Parallel Water Supply Line.

Excavate trench adjacent to existing 3” PVC water supply line. Protect existing 3” line and maintain 12” clearance. Furnish and install 2” Schedule 80 PVC water line along with fittings, couplings, unions, and adaptors all as shown on the plans and as required for a complete system. Remove and dispose interfering portions of existing water lines and fittings.

Note equipment access is limited along the pipe alignment/hillside and Contractor is alerted that small earth moving equipment is likely necessary in order to effectively excavate, bed, place pipe and backfill trench.

2.11 Furnish and Install 2” Nutating Disc Flow Meter & Meter Box.

Excavate, furnish and install 2” meter, flange adaptors, GSP nipples, unions (two min), and couplings to connect to existing and new system. Remove and dispose interfering portions of existing water lines and fittings.

2” nutating disc flow meter shall be Badger Meter RCDL, Part No. M170-200ENSG-RA- GAXX, 2” line size, lead-free bronze meter & elliptical w/test plug, chamber to be Noryl with stainless steel thrust roller, flange adaptor to be lead-free elliptical with 316SS hardware, meter mounted mechanical register, RCDL non-resettable totalizer, units in US gallons.

Furnish and install meter box, bed/backfill be as shown on the Project Plans.

2.12 Furnish and Install Yard Water Faucet and System Drain.

Excavate, remove and dispose interfering portions of existing water system associated with the work to be installed. Furnish and install GSP piping, fittings, unions, bushings and valve boxes as shown on the plans and as described herein. Shot off valves to be full port brass ball valves for portable water systems. Swing check valve to be brass. All materials shall be NSF approved for potable water systems.

Wood posts, risers and paddle valves to be as shown on the Project Plans.

2.13 Furnish and Install 2” Brass Ball Valve and Valve Box.

Excavate, remove and dispose interfering portions of existing water system associated with the work to be installed. Furnish and install 2” full port brass ball valves for potable water along with GSP unions (2 each), GSP pipe nipples, bushings and connections to existing water system as shown on the Project Plans. Furnish and install valve boxes and bed/backfill be as shown on the Project Plans.

2.14 Disinfect, Sample & Test Potable Water System.

Allow 24 hours set time, dechlorinate, flush, sample and test for presence of total Coliform and E. Coli. Repeat as necessary until results indicate the absence of bacteria.

Sampling and testing shall be in accordance with California Code of Regulations, Title 22

CLARK SPRINGS CAMPGROUND

2.15 Furnish and Place Clean Fill (Estimated 25 cubic yards).

Work includes furnishing and clean fill dirt as indicated on the Project Plans. Dirt shall be placed and compacted in lifts not to exceed 12 inches. Finished slope should not exceed 2.5:1 and groomed smooth. Contractor to provide vendor certification of weed free fill to Gov’t representative for inspection prior to placement.

Note equipment access is limited and Contractor is alerted that small earth moving equipment is likely necessary in order to effectively place and compact material and avoid damage to existing spring box system and related plumbing.

2.16 Furnish and Place Clean 1” Crushed Stone (Estimated 10 cubic yards).

Work includes furnishing and clean 1” crushed stone as indicated on the Project Plans.

Material shall be placed and leveled around the spring box, adjacent ditch, and gate entrance area. Contractor to provide vendor certification of weed free crushed stone to Gov’t representative for inspection prior to placement.

Note equipment access is limited and Contractor is alerted that small earth moving equipment is likely necessary in order to effectively place and compact material and avoid damage to existing spring box system and related plumbing.

2.17 – Furnish and Install 6’ CL Fence & Gates w/3-Strand Barbwire

Furnish and install approximately 36 lineal feet of 6-foot chain link (CL) fence plus 3-strand barbwire atop 6’ CL fence, Furnish and install two 6-foot high CL fence gates: 10-foot wide double gate and 8-foot wide double gate plus 3-strand barbwire atop 6-foot high chain link gates. Fencing and gates shall be as described herein, and as shown on plan and per Caltrans Std Plans A85, A85A and A85B. Connect to existing gate system with hot dipped galvanized hardware, including bracing rails, stretcher bars, truss tighteners, couplers, strapping, and tensioning wires.

All steel fence elements to be galvanized. Unless noted herein, primary fencing and gates shall conform to Section 80 of the Caltrans Standard Specifications (latest edition).

FABRIC: 72" 9 GA. galvanized (2" Mesh) GBW (KT) chain link fabric.

TOP RAIL: 1 5/8" O.D. SWEDGE END PF-10-MEDIUM WEIGHT, 1.11 lbs. per foot. Top rail 21' in length.

LINE POSTS: Use round line posts, bracing members, and concrete footings for 6’ high fence as indicated on Caltrans Std Plans A85 & A85A.

TERMINAL POSTS: Use round terminal posts, bracing members, and concrete footings for 6’ high fence as indicated on Caltrans Std Plans A85 & A85A.

BRACING &

TRUSS RODS: See Caltrans Std Plan A85, A85A & A85B. Steel truss rods and turn buckles to be minimum 3/8”.

GATES & POSTS: Round posts. Walk gates and double gated vehicle gates, including barb wire, shall be sized for 6’ high chain fence as well as the width of the gate as shown on Caltrans Std Plans A85, A85A & A85B.

BARB-WIRE: Barbed wire must:

1. Comply with ASTM A121

2. Have 2 point barbs

3. Be one of the following:

• 12-1/2 gauge, Class 1

• 13-1/2 gauge, Class 3

• 15-1/2 gauge, Class 3

Vertical stays must:

1. Comply with ASTM A641

2. Be 12-1/2 gauge

3. Have a Class 3 zinc coating

TENSION WIRE: 7 GA. coil spring class iii tension wire attached to bottom only of fence fabric with 9 GA. steel hog ring spaced 24" on center.

FITTINGS: Regular brace band & carriage bolt, pressed steel rail-end, pressed steel eye-top, pressed steel cap, 3/16" x 5/8" tension bar, regular tension band & carriage bolt.

TIE WIRE: 8 1/4" 9 GA. aluminum tie wire spaced 15" on center for line posts & 24" on center for rails.

POST FOOTINGS: Hand mixed sack Portland Cement Concrete, dimensions to conform to the referenced Caltrans Std Plans and Specifications.

2.18 Furnish and Place Three (3) ½-Ton to 3/4"-Ton Boulders

Work includes furnishing and placing three (3) boulders in the range of half-ton to three-quarter ton size. Boulders should be from the general area to reflect area characteristics.

Placement of boulders will be where shown on Project Plans and at the direction of the Government representative.

STONEY POINT CAMPGROUND/STONEY SWIM AREA

2.19 Furnish, Install, Operate and Maintain Caltrans Traffic Control System on State

Hwy 3

Work includes furnishing, installing, operating and maintaining traffic control system for lane closure on State Highway 3 in accordance with Caltrans Standard Plans T9 & T13, and as required by the Caltrans Encroachment Permit for this project.

2.20 Locate, Remove, Install 2.5” Water Line Repair

Excavate, bed and backfill repair for potable water line as described herein and on the Project Plans. Locate, remove and install 2.5” GSP water line repair with standard 2.5” GSP water pipe and dresser couplings for potable water systems, as described herein and as shown on the Project Plans.

2.21 Disinfect, Sample & Test Potable Water System.

Allow 24 hours set time, dechlorinate, flush, sample and test for presence of total Coliform and E. Coli. Repeat as necessary until results indicate the absence of bacteria.

Sampling and testing shall be in accordance with California Code of Regulations, Title 22