**Scope of Work**

**for the**

**Hodgdon Meadow Water Treatment System Replacement**

#### [Description of Services:]{.underline} The contractor shall provide all labor, materials, tools, equipment and supervision necessary to replace the water treatment facilities, connection appurtenances and well house which service the Hodgdon Meadow water system. The contractor shall also connect the new system and demolish and remove the existing system.

**[Background:]{.underline}** Hodgdon Meadow is located within Yosemite
National Park near the Big Oak Flat Entrance and is open year around.
The National Park Service operates and owns the water treatment system
and distribution system that serves the Hodgdon Meadow residential area
and portions of the Hodgdon Meadow Campground. Currently, the water at
Hodgdon Meadow is aggressive and low in pH causing the copper piping and
lead solder in the residences to leach into the water. The California
Department of Health Services (CDHS) required a corrosion control study
and a permanent solution since the water exceeds the mandated action
levels.

The water supply for the Hodgdon Meadows residence area and campground
is from a single well drilled next to the treatment facility. The
pretreated water has a pH range of 6.3-6.5. Most of the distribution
piping is asbestos cement, along with copper piping and lead soldering
within dwellings. The slightly aggressive conditions of the water allow
leaching of copper and lead solder. The existing water treatment system
consists of a 12.5% chlorine injection point housed in a 60 square foot
structure, as seen in Picture 1 in the attached Photos document. Treated
water is sent directly to the distribution system, as well as to a
100,000 gallon storage tank.

The housing unit for the water treatment plant houses the control
panels, piping and chlorine injection instruments, along with a 55
gallon storage tank of unused calcium hydroxide. The temporary portable
emergency generator is located outside of the housing unit and does not
reside at the treatment facility permanently. The housing unit and
generator are on a concrete pad on the edge of pavement of a residential
road looking out at Hodgdon Meadow.

#### [REQUIREMENTS AND SPECIFICATIONS:]{.underline} The items below are required of the Contractor:

#### - [Existing Facilities:]{.underline} 

#### The contractor shall allow all elements of the existing well, well house, water treatment equipment and connection appurtenances to remain intact and functioning until the new system is ready to be connected. The contractor shall minimize system down time during connection and provide the COTR four weeks notice for any utility system shut-downs. All system shut-downs and shut-down lengths must be approved by the COTR. 

#### After the new system is online and approved by the COTR, the contractor shall remove and dispose of the existing treatment building, slab and all above ground water system facilities up-line of the new system connection point. All underground facilities which lie up-line of the new system connection point shall be abandoned in place. Disposal of all demolition debris shall be at an out-of-park location or landfill in accordance with local, state and federal regulations and procedures.

\- [New Treatment Building:]{.underline}

1.  The new treatment building shall be installed in the location shown
    in the overall site plan and shall meet the intent of the Floor Plan
    (Exhibit 2) and the Elevation Plan (Exhibit 3).

2.  The building shall be stick built with dimensions of 10' by 20.5'.
    The new housing unit will be comprised of two rooms and a shelter:

    a.  one room for chemical storage

    b.  one room for electrical controls, work station, and operations

    c.  roof shelter for generator

3.  Interior wall shall be covered with ¾ plywood sheathing and wall
    shall be insulated.

4.  The foundation shall be 6" thick slab on grade and be formed to have
    a continuous and smooth transition to the existing asphalt roadway
    and will be approximately 12x 22.5' in size. Contractor means and
    methods for creating the smooth transition shall be approved by the
    COTR prior to execution.

#### Construction shall be stick-built with standard 2x4 framing to meet a snow load of 80 psf. The roof shall have a 4 in 12 pitch and shall be a standing seam metal roof colored NPS brown.

5.  The building shall be painted "wosky" brown.

6.  The rooms for the water treatment equipment and electrical controls
    shall have standard 4-foot doorways leading outside. The locks shall
    be 6-pin core Best locks and the doors shall be painted brown.

7.  Chemical storage room will have an intake fan and exhaust vent to
    provide ventilation. Each room shall have a space heater to maintain
    rooms at a minimum of 60°F.

8.  The chemical storage room will have a drain for washdown and
    chemical spills that will drain to an open sump outside of the
    building. The sump shall be large enough to fit a portable pump for
    discharging any chemicals.

#### The temporary generator space will have a 4-foot wide gate for easy removal and replacement of the generator. The propane generator will be 20 kW, 3-phase, 60 amps. Propane for the new generator shall be supplied by the propane tank located adjacent to the existing building. Connection to propane tank to be provided by contractor.

9.  Screened closable vents shall be provided at 2 locations in the
    upper section of the walls near the roof at the gable end.

10. The contractor shall also provide lighting for the interior
    building. Interior lighting shall provide adequate coverage such
    that work may be performed in the structure without and addition
    lighting. All lighting shall be controlled by a single interior
    switch per room. The COTR shall verify lighting adequacy prior to
    approval.

#### - [Treatment Equipment, Appurtenances and Service Connections:]{.underline} 

#### The contractor shall provide and install the new treatment system per the Plumbing Schematic (Exhibit 1) and Floor Plan (Exhibit 2).

#### All components shall be installed per manufacturer's recommendations.

1.  The new water treatment facility shall consist of a new chlorine
    system, static mixer, and a base chemical injection point to reduce
    corrosion.

2.  The selected static mixer is a wafer style requiring flanges.
    Monitoring equipment includes a pH meter with recorder and existing
    flow meter.

3.  The existing well and well pump will remain the same. The new
    treatment system will connect at the same above ground connection
    from the well as the existing treatment system.

4.  The piping will be galvanized steel and will be mounted along the
    wall of the operations room. Chemicals will be supplied/stored in
    the chemical storage room and piped through the adjoining wall to
    the treatment line using polyethylene tubing. Chemically resistant
    tanks and materials shall be used for the chlorine injection
    equipment and soda ash equipment.

    -   Testing Piping: The work of installing piping and appurtenances
        shall be of such character as to leave all pipes and connections
        water-tight. As soon as practical after any section of pipeline
        has been completed or when directed by the Contracting Officer,
        a hydrostatic test shall be placed on that section of pipe to
        determine water tightness. Tests shall be conducted in
        conformance with the 2007 California Plumbing Code. If test
        fail, replace pipe at no additional cost to the Government, and
        retest.

5.  The chlorine injection equipment shall consist of a 5 gallon
    polyethylene tank set on a mounted shelf along with a 0.16 gph
    (gallon per hour) ProMinent Beta BT4a 1601 metering pump, or
    approved equal, and tubing. The feed output required is 0.0134 gph
    to deliver the appropriate dosing. Chlorine dosing will be 0.04
    gallons/day to achieve a residual concentration of 1 ppm (parts per
    million), based on a 12.5% chlorine solution.

    -   Chlorine pumps shall be able to inject chemicals against
        pressures up to 160 psig.

    -   Pump drive shall be totally enclosed with no exposed parts.

    -   Pumps shall have adjustable stroke frequency and the flexibility
        of up to 1000:1 turndown ratio, and manually adjustable stroke
        length.

    -   Pumps shall have priming valves and diaphragms and ramp style
        knobs that allow for hands free priming.

6.  The soda ash equipment consists of two 50 gallon polyethylene tanks
    suitable for the soda ash; one tank contains mixing equipment with a
    metering pump, which then dispenses into the second tank called the
    dosing tank. The two tank system will provide more effective mixing,
    which has been a problem with previous systems. The two tank system
    will also allow the system to stay in operation as the dosing tank
    will remain in service while the mixing tank is taken off line for
    refilling. The mixed tank allows thorough mixing and maturation
    prior to dosing. Another metering pump shall be located on top of
    the dosing tank where the solution is then injected into the water
    supply line. The two metering pumps are to supply 0.083 gph each.
    Metering pumps shall be ProMinent Beta Series, Model BT4a-1000, or
    approved equal.

    -   Chemical feed pumps shall be able to inject chemicals against
        pressures up to 160 psig.

    -   Pump drive shall be totally enclosed with no exposed parts.

    -   Pumps shall have adjustable stroke frequency and the flexibility
        of up to 2500:1 turndown ratio, and manually adjustable stroke
        length.

    -   Pumps shall have priming valves and diaphragms and ramp style
        knobs that allow for hands free priming.

    -   Chemical feed system to be tested to ensure all components are
        operating correctly.

7.  Provide one steel table. Table shall be made of 16 gauge steel.
    Table shall be 30" in height, model number 2744I14
    McMaster-Carr (708) 834-9600, or approved equivalent.

#### [Government Provided Items:]{.underline} The government will provide the following items for this project:

#### -Final Construction Drawings and Specifications

#### [Submittals:]{.underline} 

#### The contractor shall submit manufacturer's information on all tanks, pumps, metal roof, doors, windows, and piping components.

#### The NPS has 1 week to review and comment on all submittals. 

#### [BID FORMAT:]{.underline} The bid format for this contract is manufacturer preference with the minimum itemized bid components including, but not limited to the following:

#### Mobilization

#### 10x20.5 Building

#### Installation of Treatment Equipment, Appurtenances and Service Connection.

#### Demolition of Existing Structure & Equipment 

#### [Miscellaneous Clauses:]{.underline}

\- [Coordination with Other Contractors and Park Partners:]{.underline}
The Contractor shall cooperate fully with other Contractors, Partners
and Government employees. The Contractor shall not commit any act that
shall interfere with the performance of work by any other Contractor,
Partner or Government employee. The CO shall resolve work schedule
conflicts between this contract and the additional work awarded to other
Contractor(s) should unresolved conflicts arise. The Contractor does not
have the authority to direct the work of government personnel, other
contractors/consultants or Partners.

\- [Health and Safety:]{.underline} Contractor shall comply with FAR 23
"Environment, Conservation, Occupational, Safety, and Drug Free
Workplace". The Contractor shall immediately report any accident,
incident, or potentially hazardous situation to the CO and the COR. The
Contractor shall adhere to all YNP work place safety rules and policies.
The Contractor shall cooperate and provide full assistance to any
investigation. Failure to do so shall be deemed as grounds for
termination for default of the contract. Contractor personnel and
property are subject to safety inspections in the performance of this
contract.

\- [Contractor Safety Plan:]{.underline} The Contracting Officer shall
review and concur on all Safety Plans prior to the start of work or
staging of supplies, equipment or personnel on United States Government
property. The contractor is solely responsible for insuring adequate
lead-time is provided to permit review and concurrence of the safety
plan. The Contractor shall complete the Safety Plan in accordance with
OSHA and NPS requirements. If revisions are required, the Contractor
shall include them in the Safety Plan with appropriate configuration
control notations (i.e. change bars and revision numbers).

\- [Contractor Safety Violation Notification:]{.underline} Under NO
circumstances are unsafe working conditions permitted. Upon
notification, the contractor shall take immediate steps to correct the
condition. The contractor shall immediately contact the Contracting
Officer or the Contracting Officer's Representative upon receipt of a
Safety Violation Notice. Failure to correct unsafe conditions shall be
cause for termination of the contract for default. In addition, costs to
the Government to correct contractor safety violations shall be charged
against the contractor. In accordance with Yosemite Safety Standard
Operating Procedures, a copy of the Safety Concern Notice shall be
placed in the permanent project and contract file and routed to the
appropriate agencies for action.

\- [Identification and Change of Critical Contractor
Personnel:]{.underline} The Contractor shall submit an organizational
chart displaying key personnel involved in the effort and their
respective positions and disciplines. The Contractor shall immediately
and expressly notify the CO of any changes in critical Contractor
personnel. Critical Contractor personnel consist of all on-site
personnel, any direct charge personnel, and any others in a management
role. The Contractor shall obtain CO approval of any proposed changes in
contract personnel along with the steps taken/proposed to ensure there
are no impacts to the schedule or ability to maintain performance level
associated with individual responsibilities. The Contractor shall
identify to the CO all subcontractors to be used, prior to signing any
contract or initiating any work. The Contractor shall provide
subcontractor qualifications to the CO prior to subcontractor
utilization.

\- [Post Award Meeting:]{.underline} After the issuance of the Contract,
the Contractor shall attend a post award meeting at the location
specified by the CO. The purpose of the meeting shall be to review all
contract requirements, information, and/or site-specific data addressed
under the Contract. As directed by the CO, all on-site Contractor staff
shall attend the meeting prior to beginning work. The Contractor shall
participate in and/or facilitate an on-site meeting to develop plans and
alternatives as a working initiative to formulate the work required by
the SOW.

\- [Sensitive Data:]{.underline} In accordance with FAR 24 "Protection
of Privacy and Freedom of Information" Certain data is for official use
only and shall not be released outside the appropriate lines of
authority. Failure to do so shall be deemed as grounds for termination
for default of this Contract. The Contractor shall not publicize, or
release in any manner, information or data regarding projects on which
they may be working or negotiating with this office. Nor shall they
discuss, prior to public release by this office, a project, future
program or planning item with anyone not directly affiliated with the
design of the project. Any inquiries in regard to these matters shall be
referred to the Contracting Officer. Contractor employees may review or
be exposed to sensitive information including personnel, personal,
competitive (to include Government independent estimates, budgetary
planning documents, and private party data entrusted to the Government),
other vendors' proprietary data (to include cost, process and personnel)
or legal documentation (to include attorney deliberative data and
attorney work product). Competitive data shall be treated in accordance
with the procedures stipulated in FAR 3.104-5, FAR 15.413 and all
indentures. For the purposes of competitive data, the FAR considers
contractor personnel as Government Personnel. Personnel information is
subject to OPM guidelines. Personal information is subject to the
Privacy Act of 1974 and FAR 24.1, Attorney products are subject to the
Federal Rules of Evidence, Rule 501. Freedom of information requests
shall be immediately reported to the FOIA Monitor through the
Contracting Officer.

\- [Sensitive Data (Cultural Resources):]{.underline} The cultural
resource information contained herein is protected from public
disclosure under 16 U.S.C. section 470w-3, of the National Historic
Preservation Act of 1966 as amended, and 16 U.S.C. Section 470 hh, of
the Archaeological Resources Protection Act of 1979.

These data are provided to the Contractor strictly for the purposes of
work specified in the contract. These data are not to be duplicated,
used secondarily for any purposes, or in any way disclosed to the
public. These data are to be protected from duplication and from any
unauthorized use or access. These data are to be returned to the
Government upon completion of the contracted work.

\- [Photo Documentation:]{.underline} The Contractor shall prepare photo
documentation as a routine component of compliance management activities
when managing compliance projects with ongoing field actions or in
documenting project site compliance management decision making.

\- [Deliverables:]{.underline} Deliverables consisting of all provided
written and electronic reports, minutes, technical exchange data or
other memoranda shall be delivered as 50% and 95% drafts. Final approval
and acceptance shall be provided only after all government comments are
incorporated into the final 100% document. Formats for deliverables will
be provided by the COR. Requests for use of contractor format shall be
directed to the Contracting Officer.

\- [Review of Deliverables:]{.underline} Assist in the technical review
of deliverables generated during the course of projects. Provide
complete technical justification for each comment generated and
participate in or facilitate the technical discussion to resolve all
open items. Use of technical augmentation staff shall be coordinated
with the COR

\- [Technical Evaluation of Response to Solicitations:]{.underline}
Assist in the technical evaluation of other Contractor responses to
solicitations. Provide complete information to establish the
Government's position for fair and reasonable compensation for the level
of effort to be performed. The Contractor shall be responsible for
safeguarding proprietary and other sensitive information in accordance
with Sensitive Data paragraph above

\- [Changes:]{.underline} All changes to the contract or order must be
expressly made by an authorized representative of the Contractor and a
duly warranted CO of the United States. No work is authorized to begin
in advanced of a properly executed contract modification.

\- [Preservation of natural, cultural and archaeological
resources:]{.underline} No contractor shall violate any Park regulations
regarding preservation of natural, cultural and archaeological
resources. Within the Park and the El Portal Administrative Site the
following is [prohibited]{.underline}: (1) Possessing, destroying,
injuring, defacing, removing, digging, or disturbing from its natural
state, any fish or wildlife; plants or parts or products thereof;
nonfossilized and fossilized paleontological specimens, cultural or
archaeological resources, or the parts thereof; and any mineral resource
or cave formation or the parts thereof. (2) Walking on, climbing,
entering, ascending, descending, or traversing an archaeological or
cultural resource, except in designated areas and under conditions
established by the superintendent. (3) Possessing, destroying, injuring,
defacing, removing, digging, or disturbing a structure or its furnishing
or fixtures, or other cultural or archaeological resources. These
regulations are enforceable under 36 CFR Part 2.

\- [Discharge into Water Resources is Prohibited:]{.underline} The Clean
Water Act, 33 U.S.C. 1251 et. seq., prohibits any discharge of
pollutants by any person into water of the U.S. without a permit.
\"Pollutant\" refers to soil sediments, solid waste, chemical or
biological materials or even water that is at a different temperature
than the receiving body of water. \"Person\" is broadly defined to
include individuals, corporations, partnerships, associations, states,
municipalities, etc.

[Reporting of any Spill of Oil or Hazardous Substance is
Required]{.underline} and the failure to do so is criminally enforceable
under 33 U.S.C 1321.

Contractor shall provide an Oil and Hazardous Materials Spill
Prevention, Control, and Countermeasures Plan to address spill
prevention and response measures for hazardous substances used on site,
including fuels. A copy of this Plan shall be maintained on site during
construction and contractor and subcontractor employees should be
trained on spill prevention and response measures.

Prior to the start of work, the Contractor shall submit a plan that
complies with YNP, Federal and State requirements and allows contractors
to properly notify officials in the event of an emergency occurring
during construction activities. YNP requirements include at a minimum:

During non-work operations, stationary equipment shall be parked over
specially prepared containment pads designed to trap any leaking oil,
fuel, or hydraulic fluids.

Inspect construction site daily for proper storage of hazardous
materials, proper parking of equipment on containment pads, and for
hydraulic and oil leaks of equipment, tighten hoses, and ensure they are
in good condition. If equipment is leaking, it shall be immediately
repaired or removed from the Park at Contractor's expense.

Routine oiling, lubrication, and refueling shall be conducted with
secondary containment using Best Management Practices (BMPs) at all
times. Refueling of equipment in wetlands or stream channel areas is not
allowed at any time. Signs prohibiting refueling will be posted in
environmentally sensitive areas as directed by the natural resource
monitor.

Contractor shall maintain secondary containment for all equipment
operating with fluids (such as drilling) or when direct discharge of
leakage, spills, or other source of construction or equipment fluids can
flow directly to any streambed, whether flowing with water or dry.
Containment shall be designed and installed so as to prevent accidental
spills into streambeds in the event of mechanical failure or hose
breakage.

Contractor shall maintain spill response materials on the project site
when using heavy equipment to ensure rapid response to spills. These
materials shall include absorbent pads, booms, or other materials as
appropriate to contain oil, hydraulic fluid, solvents, and hazardous
material spills. The contractor shall maintain adequate equipment to
effectively respond to potential spillage at the site as determined by
review of the COR.

Contractor shall provide names and phone numbers of appropriate
contractor's personnel to be contacted at any time (24 hours per day)
regarding accidental release of hazardous substances to air, soil or
water. This list shall be submitted to the CO and a copy visibly
displayed in work areas on site.

Contractor shall adhere to appropriate YNP staff notification procedures
and shall rely on YNP to accomplish external notification. Contractor's
responsibility shall include immediate notification of all spills to the
COR (or to park dispatch if the COR is not available). This notification
will include specific details regarding spilled materials, amounts, and
other relevant details as required by the park SPCC plan or as defined
in advance in consultation with the COR.

Contractor shall digitally photograph or videotape the spill release at
its source and photographically document the initial spill extent within
30 minutes of initial release.

\- [Any Damage to Park Resources Must be Reported:]{.underline} The
report should be relayed immediately to the COTR and to a Protection
Division representative which may include the Resource Protection Office
at 209-372-0218.

\- [Working in Bear Country:]{.underline} Proper food storage is
important to the welfare of the Yosemite bear population and it is
required by law.

> \- If staying in a campsite, store all food and related items in metal
> food lockers provided in campgrounds, **[not in
> vehicles.]{.underline}**
>
> \- Bears have a strong sense of smell and may break into vehicles with
> the slightest hint of food. Dispose of your trash, food scraps, and
> recycling in a bear-proof receptacle.
>
> \- Be sure to check your vehicle daily and remove any item that may
> attract a bear. This includes canned food, drinks, soap, cosmetics,
> toiletries, trash, recycling, ice chests, grocery bags, and unwashed
> items used for preparing or eating meals.
>
> \- Close and latch any windows and doors in your hard-sided unit while
> you are away.
>
> \- Check job site at the end of each work day for trash or food
>
> \- Large open top bins/dumpsters used on the job site shall be covered
> and marked, "***No Food /Trash.***"

NPS Contracting Office shall provide *"The bears are not to blame"*
brochure as courtesy for field personnel.

Use the Save-a-Bear hotline (209) 372-0322 to report overflowing trash
containers, improperly stored food; bear sightings, or other information
about bears.

#### 

#### - [Heavy Equipment Cleaning:]{.underline} All heavy equipment must pass an inspection prior to entering the park or park managed areas. Inspections shall be provide by a resource monitor and scheduled through Victor Goldman, (209) 379-1181. Measures shall be taken to prevent the introduction of exotic species in the project area and staging areas. All earth moving equipment and hand tools must enter the Park free of dirt, dust, mud, seeds, or other potential contaminant. Equipment exhibiting any dirt or other material attached to frame, tires, beds, wheels, or other parts shall be thoroughly cleaned by the Contractor before entering the Park. Areas inspected shall include, but not be limited to, tracks, track guard/housings, belly pans/under covers, buckets, rippers, and other attachments. Equipment should have belly pans/under covers minimally secured as these areas shall need to be easily accessed during inspection. All equipment shall be directed to the El Portal Maintenance Facility for inspection prior to commencing work. If vehicles are unable to drive to El Portal due to size or load restrictions, vehicles shall be inspected at a mutually agreed site by the Contracting Officer prior to entering the Park. Equipment found to have entered the Park with potential contaminants shall be removed from the Park at the direction of the Contracting Officer at Contractor\'s sole expense.

\- [Estimates:]{.underline} All estimates shall comply with the
following guidelines. Deviations from this methodology must be
documented and is subject to Government review and concurrence.

> \- [Class A Estimate:]{.underline} Based on complete working drawings
> and specifications, and prepared prior to calling competitive tenders,
> this estimate should be sufficient to allow a detailed
> reconciliation/negotiation with any contractors proffered tender.
>
> \- [Class B Estimate (Substantive):]{.underline} Based on
> design/preliminary drawings and outline specifications for the
> project, which include the designs of all major systems and
> subsystems, as well as the results of all site/installation
> investigations, this estimate should provide for the establishment of
> realistic cost objectives and be sufficient to obtain effective
> project approval.
>
> \- [Class C Estimate (Indicative):]{.underline} Based on a full
> description of the preferred option, construction/design experience,
> and market conditions, this estimate should be sufficient for making
> the correct investment decision, and obtaining preliminary project
> approval.
>
> \- [Class D Estimate:]{.underline} Based upon a statement of
> requirements, and an outline of potential solutions, this estimate is
> strictly an indication (rough order of magnitude) of the final project
> cost, and should be sufficient to provide an indication of cost and
> allow for ranking all the options being considered.

**ACRONYMS**

CAP Contractor Acquired Property

CFR Code of Federal Regulations

CO Contracting Officer

COR Contracting Officer Representative

COTR Contracting Officer's Technical Representative

FAR Federal Acquisition Regulation

FTR Federal Travel Regulations

FLER Funds and Labor Hour Expenditure Report

FOIA Freedom of Information Act

SOW Statement of Work

USC United States Code

YNP Yosemite National Park

#### 

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