D5_SOW.pdf

D5 WATER SYSTEM UPGRADES (CIM!0305!69F)

SANTA CATALINA RANGER DISTRICT

STATEMENT of WORK

Coronado National Forest

February 16, 2010 dmollet@fs.fed.us and bpayne@fs.fed.us

Throughout the campgrounds and recreation areas of the Coronado National Forest, water systems have been constructed to serve the recreating public with safe, clean potable water. A list of regular and deferred maintenance items are associated with each of these water systems – this project seeks to bring the systems up!to!date, and fix any current issues with the water distribution lines and tanks.

Regular and deferred maintenance items are also present for the water systems that serve Forest Service administrative sites through the National Forest. This project will address those issues as well. A detailed discussion of the projects located on the Santa

Catalina Ranger District is listed below, by project site.

SPENCER CAMPGROUND

PURPOSE OF PROJECT

The Spencer Canyon Campground water system is a subsystem of the Loma Linda water system, which sits atop the Santa Catalina Mountains on the Santa Catalina Ranger

District in Pima County at Township 12 South, Range 16 East, Sections 5 and 6. Access to the campground itself is excellent, with an entry road directly off of the Catalina Highway.

Access to the two tanks in the system varies – Ponderosa Tank is adjacent to readily accessible from the campground road system; Spencer Tank is not accessible by vehicle, and is located approximately ¼ mile away from the Ponderosa tank. The Spencer tank is positioned just south of the Catalina Highway, at the head of a draw.

Both tanks serve the Spencer Canyon Campground, a popular camping and recreation site on the District, and are fed potable water from the Loma Linda water system. The

25,000!gallon Spencer Tank has been identified during ADEQ inspection as being substandard (mainly due to the types of covering and gaskets used), and a small hole has developed near the bottom of the tank that is resistant to repeated attempts at repair.

The 15,000!gallon Ponderosa tank has also been identified as substandard, and will be replaced as part of another ARRA project. To remedy the situation, it is proposed that the

Spencer Tank be removed in its entirety, and the portion of the system that receives water from that tank be connected into the system that is served by the Ponderosa Tank.

Existing Spencer Tank

PLANNED WORK

The scope of work for the Spencer Campground water system includes:

Removing and disposing of the existing Spencer Tank. The tank is bolted together and can be broken down by removing the bolts, or by an approved cutting method. The tank and debris must be hauled to an acceptable disposal facility located off of the US Forest Service property. Removal of the tank will need to take place after the new line is installed from the Ponderosa tank to the Spencer distribution system.

Installing a 1” outflow meter at the new tank at the Ponderosa Tank site (tank manufacture and installation is not a part of this contract). Please see attached “Meter Specification” detail.

Installing a new 2” Schedule 80 PVC distribution waterline from the Ponderosa tank to the existing system currently served by the Spencer Tank. This line will be installed cross!country, directly on top of the 2” supply line that feeds the

Ponderosa tank so as to eliminate any new ground disturbance for line construction. The existing line is buried 24 inches deep ! the new distribution line will be buried at a depth of 12 inches minimum. The

Contractor is to take care and avoid damage to the existing main, and shall repair the existing main at their own expense if damaged, by a method approved by the COR. If the existing supply line is found to be less than 24 inches when damage occurs, repairs will be paid for by the Forest Service.

Please see attached “Spencer Distribution Line” figures, “Spencer Waterline

Trench – Loma Linda” and “Thrust Block” details.

Damage to the existing main as a result of trenching is anticipated, although not encouraged; partial replacement of the existing 2” PVC supply line with new 2” Schedule 80 PVC is accounted for in the estimated quantities provided in the Schedule of Items.

Installing new air release valves and drain valves along the new distribution line as well as the existing supply line. Please see attached “Air Release Valve” and “Drain Valve” details, as well as the “Valve Box” detail.

Installing 6!foot!high chain link fence with barbed wire on top around the

Ponderosa Tank to prevent unauthorized access. Fencing should include one

16!foot double vehicle gate assembly and one 3!foot personnel gate assembly.

See attached “Fence Details.”

SHOWERS POINT CAMPGROUND

The Showers Point Campground water system is a subsystem of the Loma Linda water system, which sits atop the Santa Catalina Mountains on the Santa Catalina Ranger

District in Pima County at Township 12 South, Range 16 East, Section 8. Access to the campground itself is excellent, with an entry road directly off of the Catalina Highway.

Access to the Shower tank is moderate, along a wide footpath that leads to the tank.

The Showers Point Tank serves the Showers Point Campground, a popular camping and recreation site on the District, and is fed potable water from the Loma Linda water system. The tank is not currently fenced or metered – this project seeks to remedy these issues.

Existing Showers Point Tank –

NOTE: tank will be replaced as a part of another ARRA project at this same location

The scope of work for the Showers Point Campground water system includes:

Installing a 1” outflow meter at the new tank at the (tank manufacture and installation is not a part of this contract). Please see attached “Meter Detail.”

Installing 6!foot!high chain link fence with barbed wire on top around the approach to the tank ladder to prevent unauthorized access. Fencing should include one 3!foot personnel gate assembly. See attached “Fence Details.”

ROSE CANYON CAMPGROUND

The Rose Canyon Campground water system is a subsystem of the Loma Linda water system, which sits atop the Santa Catalina Mountains on the Santa Catalina Ranger

District in Pima County at Township 12 South, Range 16 East, Section 10. Access to the campground itself is excellent, with an entry road directly off of the Catalina Highway.

Access to the Rose Tank is poor, along a 4!wheel!drive dirt road that leads directly to the tank.

The existing tank serves the Rose Canyon Campground, a popular camping and recreation site on the District, and is fed potable water from the Loma Linda water system. The tank is not currently fenced or metered – this project seeks to remedy these issues.

Existing Rose Canyon Tank –

The scope of work for the Rose Canyon Campground water system includes:

Installing a 1” outflow meter at the new tank at the (tank manufacture and installation is not a part of this contract). Please see attached “Meter

Specification” detail.

Installing 6!foot!high chain link fence with barbed wire on top around the Rose

Canyon Tank to prevent unauthorized access. Fencing should include one 16!

foot double vehicle gate assembly and one 3!foot personnel gate assembly.

See attached “Fence Details.”

PEPPERSAUCE CAMPGROUND

The Peppersauce Campground water system is located approximately 10 miles south and east of the town of Oracle, Arizona, on the north side of the Santa Catalina Mountains on the Santa Catalina Ranger District in Pinal County at Township 10 South, Range 16 East, Section 28. Access to the campground is via National Forest System Road (NFSR) 38.

The existing system that serves the Peppersauce Campground is in good repair, with very few maintenance issues overall. The few it does have include dilapidated corrugated metal valve boxes, spigots, and wooden pipe stands that protect the spigots from vehicular impact. This project seeks to remedy these issues.

The scope of work for the Peppersauce Campground water system includes:

Replacing 5 corrugated!metal valve boxes with 5 concrete valves boxes with lockable lids. See “Valve Box” detail.

Replacing 5 aging spigots with 5 new yard hydrants which include an infiltrator/leach chamber. See “Water Pedestal and Vault” detail. A diagram of the Peppersauce hydrant locations is also attached.

UPPER AND LOWER SABINO CANYON VALVE REPLACEMENT

PURPOSE OF PROJECT

The water system that serves the Sabino Canyon area is located within the upper and lower reaches of the Sabino Canyon Recreation Area, which can be reached off of Sabino

Canyon Road, just north of its intersection with Sunrise Drive in north Tucson.

The system was built in the 1950s. Since that time, a few of the valves and valve boxes have been replaced as they have come to the end of their service life. This project seeks to complete the valve replacements on the rest of the system. A total of 13 shut!off valves along with the valve boxes they reside in will be replaced, and back!flow prevention devices installed where needed to avoid cross!contamination of water supplies.

Example of Existing Valves to be Replaced

The scope of work for the Upper and Lower Sabino Canyon Valve Replacement project includes:

Removing and replacing 11 shut!off valves, along with their associated valve boxes. Valves range in size from 1!inch to 2!inch, and are buried at depths that range from 2 feet to 4.5 feet; valve locations are indicated on the attached “Sabino Canyon Water Valves” figure. Some valves are located in concrete!encased or paved areas, which shall be restored at the expense of the Contractor once replacement has been completed.

Ball valves will be used for all pipe sizes. Five feet on either side of the valve will also be replaced, as called out in the “Inline Valve” detail. Valve boxes are to be per the attached “Valve Box” detail.

Installing a 1” backflow prevention device at the shut!off valve to the pond.

CACTUS ENVIRONMENTAL EDUCATION CENTER

The Cactus Environmental Education Center is located adjacent to the now!defunct

Cactus Picnic Area within the Sabino Canyon Recreation Area, which can be reached off of

Sabino Canyon Road, just north of its intersection with Sunrise Drive in north Tucson.

With the upgrades and additions made with the advent of the Cactus Environmental

Education Center and recreation area, these facilities ceased to receive water. However, water is needed and wanted at the Center, which services thousands of students each year.

Path to Ramada #2

Wash Crossing Along Line Alignment to Ramada #2

The scope of work for the Cactus Environmental Education Center and recreation area project includes:

Extending the existing water line to Ramada #1 and installing a yard hydrant with shut!off valve at that ramada. This will require the installation of 250 feet of 1” HDPE water line along the existing walk. See attached “Cactus Picnic

Area – Waterline Extension” drawing, and “Thrust Block” and “Yard Hydrant” details.

Extending the existing water line to Ramada #2 and installing a yard hydrant with shut!off valve at that ramada. This will also require the installation of 250 feet of 1” HDPE water line along the existing walk. See attached “Cactus Picnic

Area – Waterline Extension” drawing, and “Thrust Block” and “Yard Hydrant” details.

Installing a metal sleeve and rip!rap protection at the wash crossing encountered along the line alignment to Ramada #2. See attached “Cactus

Picnic Area – Waterline Extension” drawing.

DEAD FIR COLLECTION BOX

PURPOSE OF PROJECT

The Dead Fir collection box is located near Sabino Creek in the Santa Catalina Mountains on the Santa Catalina Ranger District in Pima County at Township 11 South, Range 15

East, Section 25. Access to the actual box site is poor, along an unmaintained portion of

National Forest System Road (NFSR) 19 (Turkey Run Road). This road can be accessed from Catalina Highway.

The concrete collection box serves as a check point for one of the major sources of water for the Loma Linda water system – an infiltration gallery (horizontal well) in Sabino Creek.

Water from the well flows into the collection box, and then flows out to the settling tank that is downstream of the box. By removing the lid and observing / measuring the flow from the inlet pipe, the water operator can quickly gauge the production of the well.

The existing lid to the box is not securable against the local rodent population, and there have been issues with contamination in the past. This project seeks to remedy this issue.

Dead Fir Collection Box Existing Box is Approximately 3’ x 4’

The scope of work for the Dead Fir Collection Box project includes:

Removing and replacing the existing concrete collection box with a steel or fiberglass 50! to 100!gallon certified!potable!water partially!underground receptacle that is vermin!proof and has a lid that can be locked with a padlock and prevents unauthorized entry. See attached “Dead Fir Collection Box” detail. The box will be replaced in!situ. Inlet and outlet piping will be replaced as indicated in the detail.

Installing a 2” brass or steel ball valve on the inlet side of the box. Valve will be located in a valve box with a lockable lid. See associated “Valve Box” detail.

LEMMON ROCK LOOKOUT

The water system that serves the Lemmon Rock Lookout is located east of Summerhaven in the Santa Catalina Mountains on the Santa Catalina Ranger District in Pima County at

Township 11 South, Range 15 East, Section 35. Access to the site is provided via Lemmon

Rock Road, a 4!wheel!drive single!lane road that leads to the lookout. This road is can be access via Radar Base Road (the tail end of the Catalina Highway, also known as Ski Valley

Road).

The existing 300!gallon tank that supplies water to the Lookout is old and was not designed to be lockable against unauthorized access. In an effort to protect the water supply, a locking system was fashioned by Forest Service personnel as a temporary solution until the tank could be replaced. Additionally, the system would benefit from further filtration before it reaches the lookout, as there has been a history of organic contamination. This project seeks to remedy these issues.

Lemmon Rock Lookout Water Tank Site Location

Lemmon Rock Lookout Water Tank

The scope of work for the Lemmon Rock Lookout water system project includes:

Removing and replacing the existing water tank with a 500!gallon certified potable water tank made of steel, fiberglass, or other approved material. This tank will include a lockable lid to prevent unauthorized access from the public and inlet/outlet piping replacement as indicated. Given the current location of the tank, the tank might need to be able to be carried by hand. Please see attached “Lemmon Rock Tank” and associated details.

Installing a paper!cartridge filtration system in or beside the tank at the inlet.

If located beside the tank, it will be housed in a lockable box.

Installing a float device to shut!off water flow to the tank when full.

Installing a brass or steel ball valve on the outlet side of the tank. Valve will be located in a valve box with a lockable lid. See associated “Inline Valve” and

“Valve Box” details.

Installing a gravity!type air relief line on the outlet line.

Installing inflow/outflow meters at the tank. See attached “Meter Detail.”

Installing a concrete pad on which to place the tank.

Expected timeline for project completion is 2 weeks. Expected project start date is July 1, 2010.

LOMA LINDA AIR RELEASE VALVES

The Loma Linda water system serves multiple users throughout the Santa Catalina

Mountains on the Santa Catalina Ranger District in Pima County. Access to the system is provided via several roads and trails that branch off of the Catalina Highway.

The existing system is over 20 miles in length, and crosses varied terrain as it branches out to tanks, campground water systems, and recreational users. At each high point in the main distribution line, an air release valve has been installed to bleed air from the line to improve flow in the system. Over the years, these air release valves have started to fail and can only be released manually; they need to be replaced in order to keep the system operating at functional capacity. This project seeks to remedy this issue.

The scope of work for the Loma Linda Air Release Valve Replacement project includes removing and replacing 40 air release valves throughout the entire Loma Linda system.

The valves will be replaced in the exact same location as the current, failing valves. The underlying shut!off valves will also be replaced with metal ball valves – no new piping is anticipated unless otherwise indicated. Please see attached “Loma Linda Air Release

Valve Replacement” figures for estimated locations of the valves, and attached “Air

Release Valve” and “Valve Box” details of the desired air release valve configuration.

PALISADES TANK

PURPOSE OF PROJECT

The tank and water system that serves the Palisade Administrative Site (Palisade AS) and other downstream users is located due north of the Palisade AS in the Santa Catalina

Mountains on the Santa Catalina Ranger District in Pima County at Township 12 South, Range 16 East, Section 9. The tank is located adjacent to the Catalina Highway.

The existing 35,000!gallon steel tank (Tank #1) is part of the potable Loma Linda water system, and is currently fed by Tunnel Spring located just north of the 3 tanks near

Palisade. These tanks are interconnected and provide managed water storage and distribution to system recipients downstream. The tank is not currently fenced or metered – this project seeks to remedy these issues.

Existing Palisade Tank

The scope of work for the Palisade water tank includes:

Installing a 1” outflow meter at the Palisades tank (tank manufacture and installation is not a part of this contract). Please see attached “Meter

Specification” detail.

Installing 6!foot!high chain link fence with barbed wire on top around the approach to the tank ladder to prevent unauthorized access. Fencing should include one 3!foot personnel gate assembly. See attached “Fence Details.”

SABINO CANYON WAREHOUSE YARD WATER SYSTEM

PURPOSE OF PROJECT

The water system that serves the Sabino Canyon Warehouse Yard is located within Sabino

Canyon, approximately one!quarter mile due north of the Visitor Center. Sabino Canyon can be reached off of Sabino Canyon Road, just north of its intersection with Sunrise Drive in north Tucson.

The existing metal!pipe water system service several spigots, a standpipe for filling engines and tanks, and the fire shop. The number of maintenance issues this system experiences warrants installing new piping throughout the yard. Additionally, a back!flow prevention device and additional shut!off valves need to be installed to avoid contamination of the main water supply. This project seeks to remedy these issues.

The scope of work for the Sabino Canyon Warehouse Yard water system includes:

Removing and replacing the existing 2” metal lines with new PVC lines and appurtenances as indicated on the attached “Sabino Warehouse – New Water

Distribution” drawing and associated “Inline Valve,” “Thrust Block,” “Valve

Box”, and “Pressure Reducing Valve” details.

Installing upgrades to the fire sprinkler system in the warehouse building.

Moving existing spigots as necessary to new locations, and installing new hydrants. See “Hydrant” and “Yard Hydrant” details.

Relocating the existing 4” valve on the site to a new location.

Construction and installation of a fire!hose cleaning and testing rack; see attached “Hose Rack” detail.