A04_SOW_Water_Hauling_Follow-_Solicitation_Version.pdf

Potable Water Hauling Services, South Rim II

Version: 15 October 2026

U.S. Department of the Interior National Park Service Grand Canyon National Park

1 PROJECT DESCRIPTION

1.1 DESCRIPTION OF WORK

The Contractor shall furnish all supervision, labor, vehicles, equipment, materials, chemicals, fuel, laboratory services, and incidentals required to haul, test, and deliver bulk potable water to the South

Rim of Grand Canyon National Park under a firm-fixed price purchase order with firm-fixed unit prices per gallon. The Contractor shall deliver to South Rim Water Treatment Plant (SRWTP) primary connection point. The contractor will deliver 500,000 gallons no later than 15 November

2026.

This is a Service requirement The Government states the required outcomes, the minimum standards, and how it will verify performance. The Contractor determines the fleet, truck sizes, staffing, sources, routes, and methods needed to meet them, subject to the minimums set by regulation and by this Statement of Work (SOW). The Contractor shall deliver water that meets the acceptance criteria in Section 4.3 and that is compatible with the water in the park’s South

Rim storage and distribution system, as defined in Section 4.3. The Contractor shall determine, demonstrate, furnish, and operate whatever source selection, chlorine dosing, conditioning, or treatment is needed to deliver compatible water.

Key deliverables are a delivery schedule for each order, chlorine dosing and field testing of every load, laboratory testing, electronic per-load records, and daily and weekly reports.

1.2 LOCATION

- Grand Canyon National Park, South Rim, Grand Canyon Village, Coconino County, Arizona 86023.

- Unloading Point A — South Rim Water Treatment Plant; 36.055885, -112.113301

1.3 BACKGROUND

According to the Superintendent’s Letter of Compliance Completion (Planning, Environment and Public Comment (PEPC) project 138479, 4 September 2026), a flash flood in Bright Angel and Roaring Springs Canyons beginning at approximately 1430 on 29 August 2026 damaged the

Transcanyon Waterline, which supplied water to the North and South Rims. As of 1 September

2026, initial aerial assessments indicated that at least 30 to 40 percent of the waterline piping had been washed away. The new Bright Angel Creek intake was buried in sediment and debris.

South Rim storage consists of the Tank Farm (Tanks A, B, D, E, and F), with a combined capacity of 13.36 million gallons; Tank C, with a capacity of 0.99 million gallons, which serves the upper pressure zone through the Tank C pumps; and the Desert View tank, with a capacity of

150,000 gallons (park tank data). The low pressure zone, which serves Grand Canyon Village and the hotels, is supplied from the Tank Farm. The upper zone, which serves the Trailer Village area, is supplied through the Tank C pumps. The Desert View pumps send water 30 miles east to the Desert View area.

The water now in South Rim storage is Roaring Springs cave water, which is disinfected at the

Roaring Springs Pump House and is low in organic content. Before the flood, it flowed by gravity through the Transcanyon Waterline to the Havasupai Gardens Pump House, which pumped it to the new raw water tanks and on to the Tank Farm. Detailed receiving-water chemistry is provided in Attachment 4.

The SRWTP will treat Bright Angel Creek surface water in this sequence: coagulation, flocculation, and plate settling; ultrafiltration; nanofiltration of a nominal 30 percent of the flow, for hardness removal; disinfection with sodium hypochlorite and pH adjustment with caustic soda, in a blend tank; and pumping to the Tank Farm. Post-flood creek water is expected to carry higher total organic carbon, more iron, and higher turbidity than the Roaring Springs supply, and its pH may shift. The SRWTP requires approval by the Arizona Department of Environmental

Quality (ADEQ) before it serves water.

Water from another system can change the chemistry of the receiving system. The U.S.

Environmental Protection Agency’s (EPA’s) State Emergency Drinking Water Supply Guidance states: “Critical to introducing bulk water or using MTUs is understanding the source of the

EDWS and ensuring it is compatible with the receiving utility’s water chemistry” (Reference 2).

In that guidance, MTUs are mobile treatment units and EDWS is the emergency drinking water supply. EPA’s corrosion control guidance warns that source water changes, including blending of dissimilar sources, can affect corrosion control and the release of lead and copper (Reference

3, Section 6.2). Hauled water delivered to a public water system in Arizona is regulated under

Arizona Administrative Code (A.A.C.) R18-4-214 (Reference 4). The National Park Service

(NPS) owns and operates the public water system that receives the water, and the park’s operator in responsible charge (ORC) oversees its operation. NPS retains responsibility for compliance with the Safe Drinking Water Act and 18 A.A.C. 4, including coordination with ADEQ (Section

5) (Reference 5). NPS policy on potable water hauling is in Reference Manual 83A (Reference

6, Section 10.0).

The park requires an independent, sustained supply of potable water to refill and maintain South

Rim storage until the piped supply is restored.

No ground disturbance, vegetation removal, or new construction is anticipated. The contractor shall notify the Park and CO in the event ground disturbance becomes necessary. Work at the park will occur at existing facilities and in areas the COR or CO designates.

2 BASE AWARD

The total gallons for delivery under the base award is 500,000 gallons by 15 November 2026.

The overall quantity may be up to 2,000,000 gallons of potable water (CLIN 0010-0030), via utilization of the Increased Quantity Clause. Each task in this section is included in the unit price per gallon for CLIN 0010-0030 (Section 3).

2.1 MOBILIZATION

- Mobilize vehicles, equipment, personnel, field instruments, and data systems to deliver the first load within the time in Section 4.1.

2.2 WATER SUPPLY, DOSING, AND DELIVERY

- The government will furnish the water from its Land Use Agreement with the City of

Flagstaff

- Dose chlorine at the fill point for every load (Reference 4, subsection F).

- Deliver the total volume of each delivery order by its completion date, following the accepted delivery schedule, to the SRWTP.

- Unload every load through a Contractor-furnished connection to the Government-furnished isolation valve and camlock at each unloading point.

- Furnish, operate, and maintain any conditioning or treatment the Contractor determines is necessary under Section 4.3.

2.3 TESTING, RECORDS, AND REPORTING

- Test every load at fill, after chlorine dosing, and at off-load, before unloading, for the field parameters in Section 4.4.

- Collect samples and perform laboratory testing at the frequencies in Section 4.4, and perform bench-scale blend tests when required or directed.

- Maintain electronic per-load records and deliver daily reports, weekly compatibility summaries, laboratory reports, immediate notices, and the closeout record set.

2.4 DEMOBILIZATION

- Demobilize, remove all Contractor vehicles, equipment, chemicals, and materials from the park, and deliver the closeout record set.

3 SCHEDULE OF ITEMS

CLIN Description Type Quantity Unit Unit

Price Total

0010 Potable Water Hauling Services Base 500,000 GAL

0020 Potable Water Hauling Services Option 500,000 GAL

0030 Potable Water Hauling Services Option 1,000,000 GAL

Total (Base + Options) 2,000,000 GAL

All work in this SOW is included in the unit prices per gallon; there are no separate line items for mobilization, testing, reporting, or demobilization.

3.1 ACCEPTED WATER AND PAYMENT

A load is accepted when it meets all of these conditions:

- It is carried in one (1) transport tank, filled at an approved source.

- It is dosed with chlorine and tested at fill.

- It meets the acceptance criteria (Section 4.3) in the field tests at fill and at off-load

(Section 4.4).

- The Government inspector approves unloading and, after unloading, signs its delivery record (Section 4.4).

- It is unloaded at a designated unloading point.

The Government will pay the unit price for each gallon of accepted water, as measured by the pickup location’s meter (Section 4.7) and recorded on the signed delivery record, up to the total volume (Reference 1, FAR 52.232-1). The CO may increase the total volume only by a written modification or at the express verbal direction of the Contracting Officer. Rejected loads will not be paid though Requests for Equitable Adjustment may be considered if the contractor provides adequate evidence that the load could have been accepted/delivered. Each invoice shall list the gallons accepted, the unit price, and the extended price, with copies of the signed delivery records.

A laboratory result reported after a load is unloaded does not reject that load. The Contractor shall take corrective action under Section 4.5. This does not limit the Government’s rights under the contract’s inspection clause for latent defects, fraud, or gross mistakes amounting to fraud.

3.2 ITEMS INCLUDED IN THE UNIT PRICE PER GALLON

- Mobilization and demobilization.

- Chlorine dosing.

- Field and laboratory testing at source.

- Per-load records, daily reports, weekly compatibility summaries, immediate notices, data management, and the closeout record set.

- Any conditioning or treatment the Contractor determines is necessary under Section 4.3.

- Fuel, labor, equipment, overhead, and profit.

- Winter weather operations, including freeze protection.

4 REQUIREMENTS

4.1 PERIOD OF PERFORMANCE

Base Period: From Notice to Proceed through 15 November 2026.

Mobilization. The Contractor shall deliver the first load not later than 5 calendar days after Notice to Proceed.

4.2 WORK HOURS

Deliveries are permitted from 0700 to 1900, 7 days per week, including weekends and Federal holidays. The contractor’s delivery schedule shall reflect this and requires approval by the COR.

Any deliveries outside the stated hours are not guaranteed to be approved and require 72 hours written notice to the CO & COR and approval by the CO. The daily maximum of 250,000 gallons is not to be exceeded at any point due to existing agreements with the City of Flagstaff.

The inspector will approve unloading and sign every delivery record (Section 4.4); no load shall be unloaded without the inspector’s approval.

Installation, scheduled maintenance, and removal of any Contractor conditioning or treatment equipment at park facilities shall take place between 0700 and 1900, Monday through Friday, unless the COR approves other hours. Operation, monitoring, instrument verification, chemical replenishment, and emergency repairs may take place at any time.

4.3 ACCEPTANCE CRITERIA

Each load shall meet the following acceptance criteria. Criteria for parameters measured on every load (Section 4.4) apply to that load before it is unloaded. Criteria for parameters measured by laboratory analysis apply to each sample. A laboratory result that does not meet a criterion requires corrective action under Section 4.5, and the Government may reject further loads from the affected source or truck until the cause is corrected (Reference 1, FAR 52.246-4).

Parameter Criterion

Free chlorine, in transit 0.2 to 1.0 mg/L at all times (Reference 4, subsection F)

Free chlorine at off-load At least 0.7 to 1.5 mg/L. Arizona’s minimum is 0.2 mg/L (Reference 4, subsection F).

pH Daily average of all delivered loads to be 7.5 to 8.5 (Reference 9, § 143.3), Turbidity Not more than 1.0 nephelometric turbidity units (NTU)

Total coliform and E. coli Absent in a 100 mL sample, analyzed by a method approved by EPA and the

Arizona Department of Health Services (Reference 8, § 141.852; Reference

19). Any detection is a positive result, including one positive tube or well in a multiple-tube or multi-well method.

Appearance and odor (field check at off-load)

Clear and colorless, with no visible particles, sheen, or objectionable odor, as determined by the Government inspector

4.4 WATER QUALITY MONITORING, TESTING, AND REPORTING

The Contractor shall perform all monitoring in this section. The Government may witness any test and may take split samples at any time. The Contractor shall collect and analyze additional samples when the Government directs in writing, including at the request of ADEQ or another regulatory authority. This monitoring supports, but does not replace, the park’s own compliance monitoring as the public water system.

Field testing of every load. Field testing is included in the unit price per gallon. Each vehicle shall carry calibrated free chlorine test equipment at all times. At fill, after chlorine is added, the Contractor shall:

- measure free chlorine, pH, temperature, and conductivity;

- record the chlorine dose added (Reference 4, subsection F); and

At off-load, before unloading, the Government inspector, will:

- measure free chlorine, as A.A.C. R18-4-214(F) requires at each off-load (Reference 4, subsection F);

- measure pH, temperature, conductivity, and turbidity; and

- perform a visual and odor check.

The inspector will approve unloading after the off-load tests meet the acceptance criteria. After unloading, the inspector will sign the delivery record to accept the load. (Reference 1, FAR

46.501). The Government inspector is the COR or another Government employee the CO designates in writing, with a copy to the Contractor (Reference 1, FAR 46.502). The COR will give the Contractor the names of designated inspectors. Inspectors may witness tests, reject loads under Section 4.5, approve unloading, and sign delivery records, but have no authority to change the contract. The off-load portion of the per-load record is the delivery record. If a load remains in a transport tank more than 24 hours after fill, the Contractor shall measure its free chlorine at least every 24 hours until off-load, to confirm the residual Arizona requires at all times

(Reference 4, subsection F).

Methods. The Contractor shall use field methods approved by EPA and the Arizona Department of Health Services, such as a DPD colorimetric method for free and total chlorine (Reference 19, subsections C(1) and E; Reference 17, Section 4500-Cl G). The Contractor shall calibrate each field instrument as the method or manufacturer specifies, check it each day of use, and keep the calibration and check records (Reference 20).

Laboratory testing. Laboratory testing is included in the unit price per gallon. The Contractor shall use a laboratory certified by EPA or the Arizona Department of Health Services for each analyte for which certification is available (Reference 21, subsection H(3)), with chain-of-custody documentation for every sample (Reference 20). Samples shall be preserved as the analytical method requires and delivered to the laboratory in time for analysis to begin within the method’s holding time, for example 30 hours from collection to the start of incubation for total coliform and 48 hours for nitrite (Reference 8, §§ 141.852(a)(3) and 141.23(k)(2)). A sample that exceeds its holding time shall be recollected at the Contractor’s expense. Sampling points shall be as stated in the approved Water Quality Monitoring and Sampling Plan. The following are starting frequencies:

Test Frequency

Total coliform and E. coli (presence/absence), each truck

Before first use (after disinfection), after each later disinfection (Reference 22; Reference 23)

Total coliform and E. coli (presence/absence), delivered loads

3 loads per delivery day, rotated so that each truck is sampled at least every 7 days

Compatibility panel: alkalinity, calcium and total hardness, conductivity, total dissolved solids, chloride, sulfate, total organic carbon, iron, and manganese; pH and temperature measured in the field at the time of sampling; with calculated DIC, LSI, CCPP, and CSMR

Weekly for each active source, at the fill point

Secondary standards and nitrate/nitrite panel: all 40

CFR 143.3 parameters, plus nitrate and nitrite

Monthly for each active source, and at source qualification

TTHM and HAA5, delivered water Monthly for each active source, and at source qualification

Reporting and data. The Contractor shall provide the following:

- Per-load record: an electronic record (digital manifest) for each load, created at fill and completed at off-load, containing at least the data fields in Attachment 7. The manifest may serve as the log required by A.A.C. R18-4-214(F) if it records every on-loading, chlorine disinfectant addition, and free chlorine measurement (Reference 4, subsection

F). The Contractor shall make each record viewable by the Government within 24 hours of each entry.

- Daily report: due by 0900 the following day to the CO, the COR, and the SRWTP manager. For each load, the report shall include the following, which cover the hauling records in NPS Reference Manual 83A (Reference 6, Section 10.4):

o load number, truck identification, and driver name;

o source;

o unloading point;

o fill and off-load times;

o chlorine dose added;

o metered volume (as metered from the source, per load);

o field results;

o acceptance or rejection; and any incidents.

- Laboratory reports: delivered to COR and CO within 1 calendar day after the Contractor receives them.

- Immediate notice: notice to the COR and the CO by phone within 1 hour, and in writing within 24 hours, of any of the following:

o a positive total coliform or E. coli result;

o any result that does not meet an acceptance criterion;

o any rejected load; and o any event that will prevent deliveries under the accepted delivery schedule or may let the Tank A level fall below 10 feet.

- Weekly compatibility summary: trends against the approved ranges, recalculated blend indices, and recommendations, due each week on the day the COR designates.

- Reporting continues through the final delivery. At closeout, the Contractor shall deliver the complete record set: all digital manifests, field and laboratory results, reports, logs, and certifications (Section 6.4).

Data management. The Contractor shall manage data as follows:

- Keep all data in a secure electronic repository accessible to NPS and to any personnel or agencies NPS designates.

- The Government has unlimited rights in all data first produced under this contract

(Reference 1, FAR 27.404-1).

- Data shall be exportable in spreadsheet formats (for example, .xlsx or .csv) suitable for the park’s submissions to ADEQ.

Records. The Contractor shall keep records as follows:

- Keep on board each vehicle, in paper or electronic form, the log required by A.A.C. R18-

4-214(F); the water source location and the dates and times of loading and unloading; the sanitation log and written cleaning and disinfection procedures; copies of bacteriological results; and copies of permits, licenses, and source authorizations (Reference 22;

Reference 4, subsection F).

- Keep hauling logs at least 3 years (Reference 4, subsection F).

- Keep all contract records for 3 years after final payment (Reference 1, FAR 4.703).

- Deliver a complete record set to the COR at closeout, so the park can meet its own retention periods: microbiological and turbidity records, 5 years; chemical records, 10 years (Reference 8, § 141.33).

4.5 EXCEEDANCES AND CORRECTIVE ACTION

Failed load. A load is rejected if it fails any acceptance criterion in the field tests at fill or at off-load (Section 4.4), if it was filled at an unapproved location. The inspector will record the reason for rejection on the delivery record. A rejected load shall not be unloaded into park facilities.

The Contractor shall dispose of it at a location the COR designates, in compliance with applicable discharge requirements. A rejected load will not be paid.

An example of a rejected load the contractor would be responsible for is if the load is over-dosed with chlorine and the load cannot be brought into specification.

Positive total coliform or E. coli result. The Contractor shall take the truck out of service and shall not unload any water from it; investigate the cause; clean and disinfect the truck per

ANSI/AWWA C652 (Reference 23); resample; and return the truck to service only after a negative result. The Contractor shall notify the COR and the ORC under Section 4.4 and shall support the park’s investigation, including collecting additional samples when the COR requests them.

Laboratory result that does not meet a criterion. For a result other than total coliform or E.

coli, the Contractor shall notify the COR and the ORC under Section 4.4, collect a confirmation sample within 24 hours after receiving the result, investigate, and submit a corrective action within 2 calendar days. If the confirmation sample also fails, the Contractor shall stop using the source or truck until the Government approves the corrective action in writing (Reference 8, §

141.23(f)).

Sustained trends or repeated rejections from a source. For a sustained trend outside the approved ranges (Section 4.3) or repeated rejections, the Contractor shall stop using the source, investigate, and correct the cause. The Contractor may resume using the source only with the

Government’s written approval.

Conditioning or treatment equipment. If a monitored parameter leaves its approved range, the equipment shall stop delivery automatically. The Contractor shall not resume delivering water from the equipment until the cause is corrected and the COR is notified, and shall keep deliveries on the accepted delivery schedule by other means in the meantime.

4.6 HAULING EQUIPMENT AND SANITATION

These requirements apply to every transport tank, pump, hose, fitting, valve, and appurtenance used under this contract. A “transport tank,” as used in this SOW, is a tank on a Contractor truck or trailer that holds water hauled under this contract (a “water transport container” under A.A.C.

R18-4-214) (Reference 4). This section does not apply to park storage tanks. Connections to park facilities are limited to those in Section 4.7. The Contractor shall maintain all equipment in good repair. Where the requirements of this SOW differ from applicable Arizona or federal (EPA) requirements, the more stringent requirement governs (Reference 5).

Arizona hauled-water rule. A.A.C. R18-4-214 applies to every load (Reference 4):

- (A) Hauled water shall be obtained from a source approved under 18 A.A.C. 5, Article 5, or from a regulated public water system.

- (B) Materials or products that come into contact with the water shall comply with A.A.C.

R18-4-213(B), which requires conformance to ANSI/NSF Standard 61 (Reference 12, subsection B).

- (C) Roof hatches shall be fitted with a watertight cover.

- (D) A bottom drain valve or other provisions shall allow complete drainage and cleaning of the container.

- (E) Hoses used to deliver drinking water shall be equipped with a cap and shall remain capped when not in use.

- (F) “A water hauler shall, at all times, maintain a residual free chlorine level of 0.2 mg/l to 1.0 mg/l in the water that is hauled in a water transport container. A chlorine disinfectant shall be added at the time water is loaded into the container. The residual free chlorine level shall be measured each time water is off-loaded from the container. The water hauler shall maintain a log of all on-loading, chlorine disinfectant additions and residual-free chlorine measurements. Such records shall be maintained for at least three years and made available to the Department for review upon request.”

- (G) A water transport container shall be used for hauling drinking water only and shall be plainly and conspicuously labeled “For Drinking Water Use Only.”

This SOW requires certification to NSF/ANSI/CAN 61 for all water-contact materials, including gaskets, lubricants, and hose linings, without the exceptions in A.A.C. R18-4-213(D) and (E)

(Reference 12; Reference 11).

Separate system and transport tank use. The hauled potable water system shall meet the following:

- The system — including fill hoses and lines, pumps, transport tanks, and discharge piping

— shall be separate and distinct from any other water system.

- Transport tanks shall be used exclusively for drinking water. Containers previously used for non-food products, gray water, or toxic or biohazardous substances shall not be used.

Labeling. Each transport tank shall be plainly and conspicuously labeled “For Drinking Water

Use Only” (Reference 4, subsection G).

Surfaces and materials. Water-contact surfaces and materials shall meet the following:

- Surfaces shall be smooth, non-corrodible, and non-absorbent, without pits, dents, or crimps that can hold contaminants. Welds shall be of non-corrosive material.

- Materials and coatings shall be certified to NSF/ANSI/CAN 61 and shall be lead-free, certified to NSF/ANSI/CAN 372 (Reference 24). Materials in any Contractor equipment connected to park facilities shall also meet A.A.C. R18-5-504 (Reference 25).

Transport tank construction. Each transport tank shall meet the following (Reference 22):

- Transport tanks shall close to exclude all foreign matter and shall be vented.

- Each transport tank shall have at least one roof hatch (manway) that allows interior inspection and cleaning, fitted with a watertight, lockable cover (Reference 4, subsection

C).

- Hatches and other openings shall be covered and sealed with tight-fitting covers, permanently mounted food-grade gaskets, and security locks.

Water inlets and outlets shall have threaded or clamped caps tethered to the ports by chain or cable. Caps shall be in place except while water is being loaded or discharged.

- A sign reading “DANGER — CONFINED SPACE, ENTER BY PERMIT ONLY” shall be permanently mounted in a clearly visible location on the manway cover.

- Vents shall face downward (mushroom or return-bend type), shall be sized to let air replace water as it is discharged, and shall be protected by a 30-mesh screen of non-toxic, non-absorbent material.

- Each transport tank shall have an overflow, which may be combined with the vent.

Overflows shall be sealed with tight-fitting food-grade gaskets, shall face downward, and shall be protected by a 30-mesh screen of non-toxic, non-absorbent material.

- Level measurement devices (floats, probes, or switches), if used, shall be certified to

NSF/ANSI/CAN 61. The liquid level shall be easy to measure.

- Each transport tank shall have a bottom drain that allows complete discharge during sanitation (Reference 4, subsection D). No deck drain, sanitary drain, or pipe carrying non-potable liquid shall pass through the tank.

- Piping and connections shall be certified to NSF/ANSI/CAN 61 and supported to prevent sagging, strain, and damage.

Transport tank filling and backflow. Filling shall meet the following:

- Fill only at the source utility’s authorized bulk fill points, from water under pressure, with the backflow protection the source utility requires.

- Protect each transport tank fill against backflow, consistent with A.A.C. R18-4-215 and the park’s Cross-Connection Control Program (Attachment 5), by one of these methods

(Reference 26, subsections D and E):

o a backflow prevention assembly approved under A.A.C. R18-4-215(D) on the direct fill connection, with no branch, tee, or other connection between the assembly and the tank inlet; or o an air gap: overhead filling through a hatch, with the fill pipe ending at least 1 inch or twice the fill pipe diameter, whichever is greater, above the highest water level the tank can reach (Reference 27). A vehicle-mounted overhead fill pipe shall be capped at each end with tethered threaded or clamped caps when not in use.

- Where the source utility or the park’s Cross-Connection Control Program requires a higher level of protection, that requirement governs.

- There shall be no cross-connection between the hauled potable water system and any other system. Any drain or waste line that discharges to a drain shall discharge through an air-gap separation of at least 1 inch or twice the pipe diameter, whichever is greater, above the flood rim of the receiving drain (Reference 27).

- Use sanitary transfer techniques, keep foreign material out of the water, and never submerge hoses or pipes in a receiving vessel.

Pumps. Pumps shall meet the following:

- Pumps shall be made of food-grade materials certified to NSF/ANSI/CAN 61. Internal water-contact surfaces, including seals and bearings, shall be smooth, non-porous, and corrosion-resistant.

- Lubricants shall be food-grade and certified to NSF/ANSI/CAN 61.

- Pumps shall be capable of disassembly to show the condition of the impeller and impeller chamber.

- Pumps shall be used only for potable water and off-loading.

- The following pumps are not acceptable: pumps with non-food-grade lubricants, seals, or bearings; pumps with porous, pitted, or corroded impellers or impeller chambers; cast-iron pumps; and petroleum-lubricated pumps.

- The Contractor shall keep the manufacturer’s product data sheet for each pump available at all times, showing that the pump is suitable for potable water.

Hoses, fittings, and valves. Hoses, fittings, valves, and similar equipment shall meet the following:

- They shall have smooth interior surfaces of food-grade materials certified to

NSF/ANSI/CAN 61.

- Hoses shall be labeled “potable water.”

- Galvanized pipe and fittings are prohibited.

- Every hose shall have threaded or clamped end caps, in place whenever the hose is not in use, including hoses in storage compartments (Reference 4, subsection E).

- They shall be kept clean and disinfected and shall be handled to prevent contamination.

Sanitation. The Contractor shall meet the following:

- Clean and disinfect transport tanks, pumps, hoses, valves, fittings, and Contractor-furnished fill equipment per ANSI/AWWA C652 at these times (Reference 23; Reference

22):

o before first use under this contract;

o after 72 hours or more of non-use;

o after exposure to any possible contamination, including open or unsealed covers, caps, or fittings, or entry of dust, smoke, rain, or chemicals into the transport tank or onto water-contact surfaces;

o after any defect becomes apparent in seals, vents, hatches, welds, valves, pipes, pumps, or hoses; and o after a positive total coliform or E. coli result.

- After disinfection, drain and flush with potable water before filling.

- Keep written cleaning and disinfection procedures, stating the agents, concentrations, and contact times, on each vehicle.

- Keep a sanitation log on each vehicle recording each cleaning and disinfection event.

Inspection and security. Before first use under this contract, the Contractor shall present each truck for Government inspection with its transport tank empty so the interior can be inspected.

The Government will inspect using the following checklist, adapted from Coconino County’s

Water Hauler Truck Inspection Information Sheet (16 December 2022) (Reference 28):

o the fill source is approved under A.A.C. R18-4-214(A), and is not an open hydrant or hose bib;

o the transport tank was built for drinking water or food and has never held septage, fuel, oil, or any non-food product;

o the transport tank is plainly and conspicuously labeled “For Drinking Water Use

Only”;

o the transport tank, its coating, and every other part that contacts the water are certified to NSF/ANSI/CAN 61;

o the transport tank has a roof hatch (manway) and a vent;

o hoses are certified to NSF/ANSI/CAN 61, clean, in good repair, and capped when not in use;

o the truck carries chlorine certified to NSF/ANSI/CAN 60 to dose loads;

o the truck carries a log that records the date and time of each fill and delivery, the quantity, the chlorine added, and the free chlorine residuals, and records are kept for at least 3 years; and o the truck carries a test kit that reads free chlorine from 0.2 to 1.0 mg/L, and the operator shows how to use it correctly.

- After the empty-tank inspection and the disinfection required before first use, the

Contractor shall fill the transport tank at an approved source and show the inspector a free chlorine residual of 0.2 to 1.0 mg/L before the first delivery.

- The Government may inspect any vehicle and its records at any time.

4.7 DELIVERY AND UNLOADING OPERATIONS

Unloading points. The Contractor shall unload only at the SRWTP, and shall connect only to the Government-furnished isolation valve and camlock connection at each unloading point

(Section 5; Attachments 2 and 3). The Contractor may unload at either point, within the site limits in this section, unless the COR directs otherwise. The Contractor shall make no other connection to park facilities, except conditioning or treatment equipment whose configuration and location the Government has approved under Section 4.3. No Contractor equipment, including unloading pumps, hoses, and backflow prevention assemblies, shall connect to park facilities until the Government approves the related submittals (Section 6.1).

Pressure. The Contractor’s unloading pumps shall deliver at least thirty-five (35) pounds per square inch (psi) at the connection.

Backflow protection and hose. The Contractor shall:

- furnish hoses and fittings certified to NSF/ANSI/CAN 61 and used only for drinking water at each connection;

- furnish, install, and maintain at each unloading connection a reduced pressure principle backflow prevention assembly that conforms to ASSE 1013 (Reference 30) and holds a current certificate of approval from the University of Southern California Foundation for

Cross-Connection Control and Hydraulic Research (Reference 26, subsection D;

Reference 31), or another assembly the park’s Cross-Connection Control Program

(Attachment 5) accepts in writing;

- have each assembly tested by a person currently certified as a “general” tester by the

California-Nevada Section of the American Water Works Association, the Arizona State

Environmental Technical Training (ASETT) Center, or another certifying authority

ADEQ approves — before first use, after installation, relocation, or repair, and at least annually — and not place an assembly in service until it has been tested and is functioning as designed (Reference 26, subsection F);

- submit each test report to the COR for the park’s Cross-Connection Control Program records (Reference 26, subsection G); and

- sanitize hose ends and fittings before each connection.

Unloading sequence. For each load, the Contractor shall (Reference 4, subsections E and F):

- stage in the area the COR designates;

- observe the off-load tests by the Government inspector;

- begin unloading only after the inspector approves;

- after unloading, obtain the inspector’s signature on the delivery record; and

- disconnect, cap all hose ends, and restore the unloading connection to a capped, secured condition.

Site limits. The following limits apply:

- Vehicles shall stage only in areas the COR designates.

- Delivery vehicles shall use the bypass around the South Entrance Station.

Plant access. Drivers shall remain at the unloading positions. Entry into SRWTP buildings requires a Government escort.

Contractor-furnished items. The Contractor shall furnish all fuel, equipment, and personnel.

Government fuel is not available.

4.8 PERSONNEL, PERMITS, AND DRIVER HOURS

Supervision. The Contractor shall designate one (1) on-site supervisor and one (1) alternate, each reachable at all times when operations are active.

Drivers. Each driver shall hold a commercial driver’s license (CDL) of the class, and with the endorsements, that the vehicle requires, including the tank vehicle (N) endorsement for a tank vehicle. The Contractor and its drivers shall comply with 49 CFR Parts 382, 383, and 390 through 399 as they apply, including as Arizona adopts them for intrastate carriers (Reference

33; Reference 34).

Hours of service. Drivers shall comply with the hours-of-service rules in 49 CFR Part 395, including any exception in 49 CFR 395.1 that applies to the driver, such as the short-haul exception in 395.1(e) (Reference 33, Part 395). For information, 49 CFR 395.3 says a property-carrying driver may not drive:

- without first taking 10 consecutive hours off duty;

- after the 14th consecutive hour after coming on duty;

- more than 11 hours within that 14-hour period;

- after 8 hours of driving without a 30-minute interruption, unless a short-haul exception applies (the interruption may be off-duty, sleeper-berth, or on-duty time not driving, such as unloading); or

- after 60 hours on duty in 7 consecutive days, or 70 hours in 8 consecutive days if the carrier operates every day. A 34-hour off-duty period restarts the 7- or 8-day count.

If this summary differs from the regulation, the regulation governs.

Staffing. Emergency hours-of-service relief is not expected to apply to this work (Reference 33, §§ 390.5 and 390.23). The Contractor shall staff and schedule drivers to meet all normal requirements.

Water quality staff. Staff who add chlorine to hauled water or test water quality shall be trained in the chlorine dosing procedure and the Water Quality Monitoring and Sampling Plan the

Government accepted under Section 6.1. The Contractor shall name one person, the water quality lead, responsible for its water quality monitoring and records. Contractor staff shall not make process control decisions for the park’s water system. If the Contractor operates equipment that treats or conditions water in the park’s water system, the equipment shall be run under the direction of the park’s operator in direct responsible charge, or by a Contractor operator certified by ADEQ in the correct class and at or above the facility’s grade (Reference 35).

Permits and authorizations. The Contractor shall:

- obtain and maintain all permits, inspections, and certifications that apply to potable water hauling vehicles. Coconino County does not currently license or inspect water haulers

(Reference 28). If the county resumes licensing or inspection during the contract, the

Contractor shall obtain the license or inspection within 14 days of the county’s notice;

- keep a copy of each permit, inspection certificate, or seal in the vehicle.

4.9 TRAFFIC, ACCESS, AND HAULING

- All delivery vehicles shall use the bypass around the South Entrance Station and shall not queue in the South Entrance Station lanes.

- The Contractor shall comply with all posted speed limits and legal load restrictions on park roads. Load restrictions on park roads match state load restrictions, with any additional restrictions the Superintendent imposes.

- The Contractor shall yield to wildlife and to visitor traffic at all times.

- Engine braking shall not be used within Grand Canyon Village except where required for safety.

Hauling route and winter contingency plan. The plan shall name a primary route and an alternate route and shall address road closures. For example, the primary route may be US 180 and SR 64 from Flagstaff, with I-40 and SR 64 through Williams as the alternate.

Winter operations. The Contractor shall maintain deliveries in winter conditions, including by protecting hoses, pumps, meters, valves, and backflow assemblies from freezing. The Contractor shall notify the COR, within the time in Section 4.4 for immediate notices, when a road closure or weather condition threatens deliveries under the accepted delivery schedule.

4.10 SAFETY

- The Contractor is responsible for the safety of its work and shall comply with 29 CFR

Part 1910 and all other Occupational Safety and Health Administration (OSHA) standards that apply, and with accepted industry practice (Reference 36).

- The Contractor shall submit a site-specific safety plan before the first delivery (Section

6.1). The plan shall address the safety of the public, NPS personnel, and the Contractor’s employees, and the protection of property.

- The Contractor shall not enter a confined space on park property without the COR’s prior approval. Any confined space entry, including any entry into a transport tank, shall follow the Contractor’s permit space program and entry permit under 29 CFR 1910.146

(Reference 36, § 1910.146). The COR will tell the Contractor about known permit spaces and their hazards at the work sites.

- During any work outside daylight hours, the Contractor shall provide the lighting needed to work safely, and its personnel shall wear high-visibility safety apparel that meets ANSI/ISEA 107 Performance Class 2 (Reference 37). The Government may allow use of existing site lighting but does not guarantee it.

- Treatment chemicals shall be certified to NSF/ANSI/CAN 60 (Reference 12, subsection

A). Sodium hypochlorite shall also conform to AWWA B300 (Reference 38) and shall be stored and handled as its safety data sheet directs.

- The Contractor shall provide secondary containment of not less than 110 percent of the volume of the largest chemical container at each location where chemicals are stored or used.

- Where sodium hypochlorite is handled, the Contractor shall provide an emergency eyewash in the work area, and a drench shower where the body may be splashed, meeting

ANSI/ISEA Z358.1 (Reference 36, § 1910.151(c); Reference 39).

- The Contractor shall give the COR a safety data sheet for every hazardous chemical before bringing it onto park property (Reference 36, § 1910.1200).

- The Contractor shall maintain a first aid kit at each work location (Reference 36, §

1910.151(b)) and shall report all accidents to the COR within the time in Section 4.4 for immediate notices.

4.11 SPILL PREVENTION AND RESPONSE

- The Contractor shall submit a spill prevention and response plan addressing water, fuel, and treatment chemicals before the first delivery.

- The Contractor shall maintain spill response materials sufficient for the largest single chemical container at each location where chemicals are stored or used.

- The Contractor shall report any spill or release to the COR immediately and shall submit a written incident report within 24 hours.

- The Contractor shall manage water discharged during connection, disconnection, and flushing so that it does not erode soil, damage vegetation, or enter a storm drain untreated.

- The Contractor shall not discharge a rejected load within the park except at a location the

COR designates.

4.12 CONTRACTOR USE OF PREMISES

- Establishment of a construction camp within the park is not permitted.

- The Contractor shall conduct operations to cause the least inconvenience to the public.

- The Contractor shall confine storage of materials, equipment, and vehicles to areas the

COR designates. The Government is not responsible for loss of or damage to Contractor property stored on NPS property.

- Contractor personnel shall follow all traffic laws and special speed limits within the park.

- The Contractor shall know the park’s rules and regulations and shall ensure that its workers follow them. The Contractor shall confine operations to the unloading points, designated staging areas, and park roads shown in Attachment 1, and shall prevent damage to natural and cultural resources. The Contractor shall restore any damaged area to its original condition at no additional cost to the Government.

- Lodging in the park may be limited or unavailable during water restrictions. The

Contractor shall arrange lodging for its personnel.

4.13 STAGING AND LAYDOWN

- Staging and laydown shall be confined to the areas the COR designates (Section 1.2).

- No ground disturbance or vegetation removal is authorized.

- Vehicles awaiting unloading shall stage only in the designated area and shall not idle more than 5 minutes, except while the engine powers the unloading pump or other equipment, or when idling is needed to protect equipment from freezing.

4.14 QUALITY CONTROL

- The Contractor shall inspect its own work to ensure that services meet this SOW, and shall provide supervision at all times over the work its employees perform.

- The Contractor’s quality control plan shall describe how the Contractor will meet each standard in the Performance Requirements Summary (Section 4.16), including internal checks, records, and corrective actions.

- The Government reserves the right to witness any fill, any unloading, and any water quality measurement; to take split samples at any time; and to inspect any vehicle

(Reference 1, FAR 52.246-4).

- The Government may reject, before it is unloaded, any load that does not meet the acceptance criteria in the field tests. Rejected loads will not be paid.

4.15 CLEANUP

- The Contractor shall remove all debris, packaging, and waste from park property daily.

- The Contractor shall leave each unloading point clean and free of standing water, hoses, and equipment at the end of each unloading operation.

- At completion, the Contractor shall remove all tools, equipment, chemicals, surplus materials, and rubbish, and shall restore any surfaces and structures damaged by the work to their original condition.

4.16 DELIVERY SCHEDULES

The Contractor shall submit a proposed delivery schedule showing the gallons it will deliver each delivery day until the order is complete. The contractor shall provide the Schedule to the

CO-designated Park POC and CO, jointly. The Contractor shall propose any change to an accepted schedule in writing at least 72 hours before the change takes effect. An accepted schedule does not change the order’s total volume or completion date.

A delivery day runs from 0000 to 2359 Mountain Standard Time (MST). Arizona does not observe daylight saving time (Reference 7). See section 4.2.

4.17 CONTRACTOR CAPABILITY

Proposals shall show this capability, including past experience delivering potable water at these rates and experience with the necessary water treatment or conditioning and with tracking deliveries, testing, and monitoring at a similar scale and pace.

5 GOVERNMENT FURNISHED EQUIPMENT, MATERIALS, AND SERVICES

- An NPS certified operator, or the Government’s contract operator, on site at the SRWTP during deliveries. The Government may choose to omit this at certain times.

- A Government inspector during delivery hours (Section 4.2), will test and approve unloading, and sign each delivery record. The Government may choose to omit this at certain times.

- At each unloading point, an isolation valve and camlock connection installed by the park’s contractor.

- Use of the South Entrance Station bypass.

- Designated staging areas.

Note: The following are excluded from this contract and will be performed by the Government:

operation of the public water system; compliance monitoring, recordkeeping, and reporting under 40 CFR Part 141 and 18 A.A.C. 4 (Reference 8, § 141.31); coordination of the use of hauled water with ADEQ, including any notification or approval required (for example, under 40

CFR 141.90 and A.A.C. R18-5-505); and repair of the Transcanyon Waterline. The Contractor shall furnish the data, reports, and certifications that support the park’s ADEQ coordination.

SUBMITTALS

The Contractor shall submit the following items to the CO and the COR. Numbering is continuous across all subsections. The items in Section 6.1 are due at least four (4) calendar days before the start of hauling.

5.1 PRIOR TO FIRST DELIVERY

1. Proposed delivery schedule.

2. Hauling route and winter contingency plan, naming a primary route and an alternate route and addressing road closures (Section 4.9).

3. Water Quality Monitoring and Sampling Plan: sampling points, methods, frequencies, laboratory, chain of custody, quality assurance and quality control, and the data system, and how holding times will be met on nights, weekends, and holidays.

4. Chlorine dosing procedure, with product data and the safety data sheet for sodium hypochlorite certified to NSF/ANSI/CAN 60 and conforming to AWWA B300.

5. Vehicle and transport tank list, with NSF/ANSI/CAN 61 certifications, pump data sheets, hose data, labeling photos, and copies of vehicle permits and inspection certificates.

6. Transport tank cleaning and disinfection procedures, with initial disinfection records and negative total coliform and E. coli results for each truck.

7. Field instrument calibration certificates.

8. Laboratory certification for each analyte.

9. Driver roster with commercial driver’s license and endorsement verification, and the hours-of-service plan.

10. Site-specific safety plan.

11. Spill prevention and response plan.

12. Quality control plan.

13. Emergency contacts, including the on-site supervisor, the alternate supervisor, and the water quality lead.

14. Written notice that the insurance required by the contract has been obtained (Reference 1, FAR 52.228-5).

5.2 BEFORE USING EACH NEW TRUCK OR TREATMENT UNIT

15. New truck: the documentation in the vehicle and transport tank list and the disinfection records and coliform results listed above, for that truck. New conditioning or treatment unit: design basis, product data, certifications, standard operating procedures (storage, operation, maintenance, and operator training), and proposed configuration and location, for Government approval before the unit connects to or discharges into park facilities.

5.3 DURING PERFORMANCE

16. Proposed schedule change at least 72 hours before it takes effect. Requires approval by the CO.

17. Digital manifests (per-load records).

18. Daily reports, by 0900 the following day.

19. Laboratory reports, within the time stated in Section 4.4.

20. Incident reports, including the written follow-up to each immediate notice within 24 hours.

21. Calibration records, disinfection records, and backflow assembly test reports, as they occur.

5.4 CLOSEOUT

22. Complete, searchable electronic record set — all digital manifests, field and laboratory results, reports, and logs — in formats suitable for the park’s ADEQ submissions.

23. Final disinfection records.

24. Certification that all Contractor equipment and chemicals have been removed from park property.

5.5 SUBMITTAL DISTRIBUTION

Provide all submittals to the following:

- Jonathan Nelson, jknelson@nps.gov

- Barney Riley, BarneyRRiley@gmail.com

- Stephen Loftus, sloftus@ios.doi.gov

- Patrick Perry, pperry@nps.gov

- Katie Brown, KABrown@nps.gov

6 LIST OF ATTACHMENTS AND DRAWINGS

- Attachment 1 — Site map: South Rim delivery routes, South Entrance Station bypass,…