00_00_01_-_Specifications.pdf

Navajo Gallup Water Supply Project Cutter Lateral - Water Treatment Plant and Reach 21 Solicitation No.

Cost Estimating Requirements

01 20 05 - 1

SECTION 01 20 05

COST ESTIMATING REQUIREMENTS

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. In accordance with Section 01 81 05 - General Performance Requirements.

1.02 REFERENCE STANDARDS

A. Bureau of Reclamation (USBR)

1. FAC 09-01 Reclamation Manual, Directives and Standards, FAC 09-01-Cost Estimating

1.03 SUBMITTALS

A. Submit the following in accordance with Section 01 33 00 - Submittals and Section 01 12 16 - Work Sequence.

B. 30 Percent Design Estimate.

C. 60 Percent Design Estimate:

1. Refined 30 percent design estimate.

D. 100 Percent Design Estimate.

1. Refined 60 percent design estimate.

E. RSN 01 20 05-1, Estimates for Contract Modifications.

1.04 QUALIFICATIONS

A. Cost Estimator:

1. Minimum 6 years’ Experience Preparing:

a. Cost estimates for water treatment plants and line pipe of similar complexity.

b. Construction cost estimates, submitted as sealed bids on traditional design-bid-construct delivery contracts. Sealed bid values of at least 10 million dollars each.

1.05 COST ESTIMATES

A. Cost estimates shall be the formal submittal of the Open Book cost estimating process where the Contractor and Government negotiate project related costs within a progressive

01 20 05 - 2 design-build contract approach. The Government will review and comment on the development of the cost estimate

B. Cost estimates shall include:

1. Logical work breakdown structure with descriptions of major features of the water treatment plant, maintenance building, pipeline and other related facilities.

2. Pay item numbers, units of measure, quantities, unit prices, and amounts for each pay item in accordance with FAC 09-01. Refer to Section 51 40 10 - Cost Estimate Guides.

3. Name of the person (s) performing the following tasks in the preparation of quantities and cost estimates:

a. Developed.

b. Peer reviewed.

c. Checked, different from the peer reviewer.

d. Include the date for each of the above items.

4. Reclamation title block information including the Reclamation Project name and state, Feature description, Reclamation Region, Estimate Level Unit Price Level, with sheet or page numbers.

5. Summary worksheet listing items in accordance with FAC 09-01and Section 51 40 10 - Cost Estimate Guides :

a. Subtotal of the construction prices of items.

b. Mobilization.

c. Subtotal with mobilization.

d. Contract cost allowances:

1) Design Contingencies.

2) Special Taxes including Navajo Nation Sales Tax or New Mexico Gross Receipt Taxes or combination of both in varying proportions.

3) Construction Contingencies.

4) Construction Cost.

e. Estimate quantities and final prices rounded in accordance with rounding guides in accordance with Section 51 40 00 - Cost Estimate Guides.

6. Documentation formatted for review and understanding. Support estimate assumptions and construction costs, including:

a. Labor classifications for applicable Davis Bacon Craft Labor and Design- Build Contractor’s field and professional staff.

1) Federal wage rate decision number and date for Craft labor only.

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2) Details for each labor classification including:

a) Base wage rates.

b) Labor burden details including Davis-Bacon Fringes for craft labor only.

c) Labor taxes including Federal Insurance Contributions Act (FICA), Federal Unemployment Tax Act (FUTA), and State Unemployment Tax Act (SUTA).

d) Labor insurance rates including workers compensation and other applicable insurances.

e) Other applicable adders including per diem, travel expenses, allowances for small tools.

f) Overtime rates.

b. Applicable direct cost for individual equipment rates:

1) Based on industry standards and practices.

2) Assumed fuel prices.

3) Ownership or rental rates.

4) Equipment operating costs.

c. Materials cost quotes and/or other documentation:

1) Identifies the direct cost of material or equipment items and their source.

2) Equipment descriptions, materials, model numbers, dimensions, weights, capacities, flowrates, horsepower as applicable.

3) Obtain a minimum of 2 independent quotes for cost drivers that exceed approximately 5 percent of the total cost of the feature.

d. Subcontractor quotes including, taxes, freight, scope of work, schedule, crew sizes, equipment, production rates and related items. Obtain a minimum of 2 independent quotes for sub-contractor work effort as defined above that exceed 5 percent of the total cost of the feature.

e. Productivity rate assumptions:

1) Crew makeup and size.

2) Craft personnel on each crew.

3) Overtime.

4) Crew shift assumptions for identified items of work.

f. Indirect cost:

1) Assumptions, references, computations/calculations.

2) Job or field management/general expense costs.

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3) General and Administrative or home office expense.

4) Profit/fee costs.

5) Bond costs.

6) Other indirect cost applied to direct costs for prime contractor work and subcontractor work, as applicable.

g. Unit prices and lump sums:

1) Assumptions, calculations, references, and vendor quotes.

2) Sources of information, references, contact information.

3) Pricing derivation.

4) Other information relative to unit prices and lump sums for the identified items of work.

5) Lump sum items shall have breakdowns and descriptions of subitems, subcosts and previously noted information as applicable.

h. Progressions of cost developments to final unit prices. Identify all costs or computations, with applicable units of measure.

7. Task or activity based estimate for engineering, architectural and other design related services.

a. Separate and not combined with the construction estimate.

b. Scope for design work, listing major tasks or activities, along with products or services.

c. Identify resources including:

1) Breakdown of staff days or hours itemized by task or activity and by job title.

2) Non-labor costs, such as equipment, travel, transportation, supplies and miscellaneous expenses.

3) Job titles of various professional and labor classifications along with hourly rates for each position.

4) Deliverables.

5) Staff days for peer review and/or quality assurance.

1.06 LIFE CYCLE COST ESTIMATES

A. Identify life cycle costs for the water treatment system.

1. Located within the boundary of the plant site.

2. List all water treatment system components including, but not limited to ultraviolet (UV) disinfection system, backwash pumps, filter media requiring maintenance and/or replacement during the life of the system. Provide estimated costs for maintaining or replacing each component.

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3. Annual Costs:

a. Power, water treatment chemicals, maintenance equipment including forklifts, front end loaders, pickup trucks.

b. Subcontracted costs and labor required to operate and maintain the plant in accordance with technical requirements.

c. Assume $0.01219 per kilowatt-hour, plus an electrical demand charge of $5.18 per kilowatt per month, unless otherwise directed COR.

d. Power costs for membrane treatment systems:

1) Utilize midpoint transmembrane pressure (TMP). Midway between clean membranes and terminal TMP.

2) Identify TMP utilized in power consumption calculations.

e. Assumed chemical costs.

f. Assumed waste quantities and solids handling volumes/weights and disposal costs for the treatment process.

g. Total estimated cost for annual operation and maintenance of the water treatment system. Include estimated hours for each labor classification and assumed hourly rates.

4. Omit maintenance, replacement, or supply costs that total less than $300.

5. Do not include life cycle costs for buildings, site improvements such as fencing.

6. Apply the forecast nominal or market interest rate. Provided by Government after contract award.

7. Assume 50 years duration for the life of the water treatment system. Calculated to start once the system is commissioned.

8. List assumptions related to capital costs and when the construction of future installation(s), if any, would take place.

a. Include assumptions in the future installation plan, identified in Section 01 81 05 - General Performance Requirements.

b. Up to three life cycle cost estimate alternatives may be required. Base alternatives on different assumptions.

9. List flow rate assumptions for each year of water treatment plant operation during the life cycle.

10. List annual costs for power, chemicals, labor, equipment and incidentals.

11. Describe maintenance and replacement assumptions and anticipated costs:

12. Government will review and approve life cycle assumptions. Discuss assumptions with Government prior to performing life cycle cost estimates.

13. Translate life cycle costs for each alternative into total present worth value.

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14. Show life cycle cost assumptions, steps, factors, calculations and other applicable items.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

END OF SECTION

Water Treatment Performance Requirements

01 86 46 - 1

SECTION 01 86 46

WATER TREATMENT PERFORMANCE REQUIREMENTS

PART 1 GENERAL

1.01 MEASUREMENT AND PAYMENT

A. In accordance with Section 01 81 05 - General Performance Requirements.

1.02 REFERENCE STANDARDS

A. American National Standards Institute (ANSI), Hydraulic Institute (HI)

1. ANSI/HI 9.8 (2012) Pump Intake Design Standard

B. American Public Health Association (APHA)/American Water Works Association (AWWA)/Water Environment Federation (WEF)

1. Standard Methods for the Examination of Water and Wastewater 22nd Edition

C. National Electrical Manufacturers Association (NEMA)

1. NEMA MG 1-2014 Motors and Generators

D. State of New Mexico

1. 20.7.10 NMAC (Rev. January 6, 2013) Drinking Water Regulations

2. New Mexico Environment Department Construction Program Bureau “Recommended Standards for Water Facilities” 2006 Edition

1.03 SUBMITTALS

A. Submit the following in accordance with Section 01 33 00 - Submittals and Section 01 12 16 - Work Sequence.

B. 30 Percent Design:

1. Basis of Design Report. Include:

a. Water treatment concerns and solutions. For example influent water quality concerns.

b. Water treatment and residuals handling equipment:

1) Identify unit operations and associated design criteria.

2) Number of units.

c. Design calculations. Include:

1) Hydraulic calculations including pressure, head loss, and velocity.

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2) Mass balance through the treatment process at Maximum Day, Average Day, and Minimum Day flow. Account for chemicals added and removed.

3) Log inactivation/removal through the treatment process.

4) Clearwell Sump Design

a) Calculations showing sump volume. Designed according to Section 01 89 44 - Pump Performance Requirements.

i. Maximum storage volume and elevation.

ii. Pump minimum runtime volume band and maximum elevation see NEMA MG 1-2014.

iii. Design water surface volume and elevation.

d. Recommended chlorine residual concentration in distribution system.

e. Manufacturer’s datasheets for major equipment items.

f. Pipe Schedule: Materials, coating/liners, dimension ratios, and other specific design criteria for process, chemical and other piping services.

g. Anticipated service life of equipment.

h. Potable water supply system for in-plant potable use.

i. Process instrumentation and sampling schematic:

1) Refer to Informational Drawing - Process Instrumentation and Sampling Plan

2) Three sheets maximum.

j. Identify required permits.

2. Drawings. Include:

a. Process Flow Schematic.

b. Hydraulic profile through the WTP at the following flow rates:

1) Maximum Day Flow

2) Minimum Day Flow

c. Clearwell sump:

1) General arrangement drawings showing sump dimensions and geometry relative to pump bell diameter and submergence requirements.

d. Plan views:

1) Process pipe.

2) Chemical pipe.

3) Utility pipe.

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4) Treatment Processes.

e. General Arrangements including future installations.

3. Pilot Test Plan.

4. Manufacturer datasheets.

5. Outline of operations plan.

C. 60 Percent Design:

1. Refine 30 Percent Design.

2. Basis of Design Report:

a. Analysis of flood, rain, wildfire impacts on water quality.

b. Status of permits.

3. Drawings:

a. Include Sections for:

1) Process Pipe.

2) Chemical Pipe.

3) Utility Pipe.

4) Processes.

b. Piping and Instrumentation Diagrams.

4. Pilot Testing Results Report.

5. Operations plan.

D. 90 Percent Design:

1. Refine 60 Percent Design.

2. Drawings.

a. Include Details for:

1) Process Pipe.

2) Chemical Pipe.

3) Utility Pipe.

4) Processes.

E. 100 Percent Design:

1. Refine 90 Percent Design.

F. 100 Percent Construction:

1. Provide updates to previous design documents during construction.

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2. Operation and Maintenance manuals for installed equipment.

G. RSN 01 86 46-1, Testing Protocol.

H. RSN 01 86 46-2, Completed Testing Protocol.

I. RSN 01 86 46-3, Testing Phase:

1. Functional test protocol.

2. Functional test report.

3. Performance test report.

4. Monitored test report.

J. RSN 01 86 46-4, Operation Phase:

1. Operation status reports.

2. Reporting documents to regulatory agencies.

3. Demonstration test report.

4. Amended demonstration test report.

1.04 SYSTEM DESCRIPTION

A. WTP includes equipment, materials, and appurtenances for a functioning water treatment process.

B. Treat surface water from Cutter Reservoir to meet specified requirements.

1.05 PROJECT CONDITIONS

A. Refer to:

1. Informational Drawing - Cutter Reservoir Water Quality Data.

2. Informational Drawing - Process Instrumentation and Sampling Plan.

3. Section 51 45 11 - Cutter Reservoir Bathymetric Survey Report.

4. Section 51 45 13 - Coagulation and DBP Formation.

5. Section 51 45 14 - Bench Scale Results Report.

6. Section 51 45 15 - Phase 2 Bench Scale Results Report.

7. Section 51 45 16 - TOC Sampling Results.

8. Section 51 45 17 - Distribution System Chlorine Disinfection Modeling.

9. Section 51 45 18 - Basis of Design for Start Up and Future Flow Determinations.

10. Section 51 45 19 - Basis of Design for Flood and Wildfire Effects.

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1.06 BASIC FUNCTION

A. Meet applicable approving agency drinking water regulations including New Mexico Environment Department (NMED) and USEPA Region 9.

B. Incorporate the design standards detailed “Recommended Standards for Water Facilities”.

1.07 PROCESS REQUIREMENTS

A. Provide Recycle Mode:

1. Water flowing from after the disinfection volume of the clearwell to before the first treatment process at maximum day flow.

B. Process Pumps:

1. Appropriate pump type, material, pressure rating, and efficiency for the process fluid and/or flow/pressure. Utilize premium efficiency motors.

2. Utilize VFD’s for process pumps as needed. Do not use throttling valves to maintain head conditions.

3. Install pump to minimize corrosion at the pump mount interface. Use materials, coatings or elevate surface.

C. For major pieces of equipment, provide drains and overflows that drain to waste.

D. Chemical Storage and Feed:

1. Does not pertain to chlorine gas.

2. Chemical Storage:

a. Drums, totes, and or tanks: Fiberglass reinforced plastic (FRP) or cross-linked high density polyethylene (XLHDPE) as applicable. Refer to Section 01 89 35 – Storage Tank Performance Requirements for additional requirements.

b. Volume: Greater of

1) 30 days of chemical supply for the average day WTP flow at average design dosage.

2) 14 days of chemical supply, as computed by the maximum WTP flow rate at maximum design dosage.

c. Bulk Delivery, if applicable: Design chemical storage tank capacities for one full truck.

d. Secondary containment around chemical system :

1) Encircle storage drums/totes/tanks, pumps, day tanks, and other applicable equipment.

2) Volume: Impounded storage volume multiplied by 1.25 or as required by more stringent code.

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3) Concrete containment: Coat inside and top of walls in accordance with Section 01 89 09 - Coatings Performance Requirements.

e. Bulk storage tanks, if applicable:

1) Fill ports:

a) Individually hard piped to tank’s fill station.

b) Accessible throughout entire length.

2) Lockable fill caps.

3. Chemical Feed:

a. Pumps:

1) Peristaltic metering pumps for chemical feed systems.

2) Utilize the same manufacturer for peristaltic metering pumps.

3) Provide a spare pump for each chemical feed system.

b. Assemble chemical metering equipment system:

1) Wall-mounted polypropylene or HDPE sheet.

2) Floor-mounted skid using materials compatible with chemicals.

c. Appurtenances as required:

1) Backpressure valves

2) Check valves

3) Isolation valves

4) Calibration columns

5) Chemical injectors

6) Flow metering equipment

7) Others as applicable.

d. Compressed air line to the tanker truck chemical unloading area to unload truck with its engine off.

E. Disinfection:

1. Use chlorine gas.

2. Do not use chloramines.

3. Supply WTP with potable water.

4. Recommend chlorine residual concentration considering finished water line pipe and storage tanks to next chlorine booster station(s).

5. As recommended in NMED Recommended Standards or this section, whichever is more stringent.

6. Chlorine Gas Room:

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a. Separate chlorine gas room or building at ground level. Do not feed or store other chemicals in room.

b. During normal operation and delivery, provide one month’s supply of chlorine gas to accommodate interruptions in delivery.

c. Chlorine Gas Containment System:

1) Model One-Ton ChlorTainer as manufactured by TGO Technologies Incorporated, Santa Rosa, CA 95403 or equal with the following essential characteristics:

a) Provides secondary containment of chlorine gas container.

b) Able to be exposed to chlorine liquid, chlorine solution, or chlorine gas.

c) Operates under a vacuum-operated feed system.

d) Allows chlorine cylinders to be rolled in and out.

d. No more than one door that opens outward to the exterior of the building.

e. Outside window(s).

f. Seal openings between chlorine gas room and WTP process building, include joints around walls.

g. Mount a chlorine gas danger sign near the entrance of chlorine gas room.

h. Floor: White, smooth, impervious, and slip-proof.

i. Provide a poster showing chlorine handling instructions and precautions inside the chlorine gas room in a visible location.

j. Chlorine gas detection equipment. Tied to:

1) SCADA.

2) Alarm/emergency light mounted outside the chlorine room, adjacent to the entrance door.

7. Storage Space:

a. Outside the chlorine gas room

b. Respiratory protection equipment meeting NIOSH Standards with 30 minutes capacity of compressed air.

c. Automatic chlorine leak detector wired to an alarm light or telemetry device. Not wired to turn on the exhaust fan.

d. Chlorine leak repair kit approved by the Chlorine Institute for gas cylinders.

e. Protective equipment, including rubber gloves, protective clothing, and goggles.

F. Clearwell:

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1. Two Sections:

a. Disinfection: For chlorine contact.

b. Storage and pumping.

2. Primary Disinfection: Completed no further than the end of the disinfection section.

3. Do not provide storage beyond what is required for proper finished water pumping and WTP operation. Storage for WTP fire protection may be provided if applicable.

4. The following plan view diagram provides for an example of the flow paths to accomplish some of the requirements described below.

5. Disinfection Section:

a. Two parallel disinfection treatment trains:

1) At maximum day flow, the combined volume of the two parallel trains shall be sufficient for disinfection.

2) At average day flow, the volume of each train shall be sufficient for disinfection.

3) Provide piping, valves or gates to allow for the isolation/draining of each train for maintenance while allowing the other train to continue operating.

4) Provide sufficient overflow weir depth at the primary flow control weir for each train to ensure that flow balancing of the trains is relatively easy to perform (e.g., 1 to 2 inches has been too small).

b. Feed pipes:

1) Separately connect each train to the main process building through its own pipe.

2) Isolate pipes with valves or gates for maintenance.

3) Ensure a break in one feed pipe does not blow out the other pipe.

4) Allow pipes to feed either train.

6. Storage and Pumping Section:

Sump

Sump

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a. Two parallel storage and pumping trains:

1) At maximum day flow, the combined volume and pumping capacity of the two parallel trains shall be sufficient for WTP operation and finished water pumping.

2) At average day flow, the volume of each train shall be sufficient for WTP operation and finished water pumping.

3) Provide piping, valves or gates to allow for the isolation/draining of each train for maintenance while allowing the other train to continue operating.

b. Sump: Design and construct sump of clearwell in accordance with ANSI/HI 9.8. Deviations require a Physical Model Study in accordance with ANSI/HI 9.8.4

1) Rectangular Intakes ANSI/HI 9.8.2.1.

2) Formed Suction Intake ANSI/HI 9.8.2.2.

3) Trench Sump ANSI/HI 9.8.2.4:

a) Figure 9.8.2.4.1a – Trench-type wet well OR.

b) Figure 9.8.2.4.1b – Trench-type wet well with formed suction inlet.

4) Do not use:

a) Circular Pump Stations ANSI/HI 9.8.2.3.

b) Can Vertical Turbine Pump Intakes ANSI/HI 9.8.2.6.

c) Unconfined Intakes ANSI/HI 9.8.2.7.

d) Designs for Solids Bearing Liquids ANSI/HI 9.8.3.

e) Designs listed in the Appendices of ANSI/HI 9.8.

5) Design volume to hold the greatest of:

a) 1 times the pump minimum runtime as determined by

NEMA MG 1.

b) WTP maximum shut down volume, plus clearwell sump design water surface volume.

7. Complete Clearwell Drainage:

a. Connect floor drains to a water recycling system that sends water back to the WTP head.

b. Maximum one train drain time: 2 hours.

c. Pumps for water recycling can be used to initially drain the clearwell to the minimum pump submergence level.

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8. Disinfection between clearwell and outlet of Regulation Tank: Consider using this volume for primary disinfection to reduce or eliminate the disinfection portion of the clearwell.

G. Residuals Handling System:

1. Further treat waste generated from treatment process through a residuals handling system.

2. Utilize sludge drying beds instead of mechanical processes for residuals handling.

3. Recycling of water from the residuals handling facility in accordance with federal, state, county, tribal, and local regulations.

4. Provide wastewater holding pond for detaining off spec water and water drained from finished water line.

1.08 FINISHED WATER QUALITY REQUIREMENTS

A. For the purpose of the RFP only:

1. All water quality requirements in “Finished Water Quality Requirements” apply

2. In addition, maximum water quality values shown in Table 01 86 46A – Proposal Cutter Reservoir Maximum Water Quality Values also apply. These values are for isolated events with maximum durations of three days.

Table 01 86 46A – Proposal Cutter Reservoir worst Case Water Quality Values

B. Table 01 86 46B - Monthly Cutter Reservoir Water Quality Summary summarizes basic raw water quality and constituents of concern for Cutter Reservoir. Samples were taken monthly from June 2014 through August 2015.

Constituent Type Water Quality Parameter Units Worst

Case General Hardness mg/L as CaCO3 139

TDS mg/L 270 TOC mg/L as C 4.1 TSS mg/L 44 Turbidity NTU 22 UV Absorbance cm-1 at 254 nm 0.103

Microorganisms Cryptosporidium oocysts/L 0.2 Giardia Lambia cysts/L 0.2

Inorganic Chemicals Aluminum mg/L 0.46 Iron mg/L 0.64 Manganese mg/L 0.030

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1Minimum reporting limit ranged from 0.087-0.095.

2n = number of samples.

C. Refer to documents listed in project conditions for additional raw water quality data.

D. Perform additional water quality sampling and analysis as needed.

E. Finished water quality requirements at the start of the finished water pipe.

1. Not for the entire distribution system.

2. Meet requirements of Table 01 86 46C - TOC Requirements in lieu of disinfection byproduct (DBP) requirements.

Table 01 86 46C - TOC Requirements

100 Percent of the Time

95 Percent of the Time

TOC 0.90 0.80

Table 01 86 46B - Monthly Cutter Reservoir Water Quality Summary (June 2014 through August 2015)

Constituent Type Water Quality Parameter Units Average

(n) 2 Range

(min-max) General Alkalinity mg/L as

CaCO3

82 (36) 40-134

Hardness mg/L as CaCO3

97 (18) 85-116 pH Su 8.1 (35) 7.9-8.4 TDS mg/L 136 (34) 40-225 TOC mg/L as C 2.7 (35) 0.8-3.5 TSS mg/L 6.5 (23) 2.0-22 Turbidity NTU 3.0 (22) 0.1-11 UV Absorbance cm-1 at 254 nm

0.072 (19) 0.028-0.086

Microorganisms Cryptosporidium oocysts/L1 0.097 (18) 0.087-0.20 Giardia Lambia cysts/L1 0.097 (18) 0.087-0.20

Inorganic Chemicals Aluminum mg/L 0.15 (33) 0.05-0.38 Iron mg/L 0.18 (36) 0.05-0.53

Inorganic Chemicals (Primary Regulations)

All significantly below treated water quality requirements

Organic Chemicals All significantly below treated water quality requirements Radionuclides All significantly below treated water quality requirements

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3. Meet the requirements shown in Table 01 86 46D – Primary and Secondary Water Quality Requirements and Table 01 86 46E - Biological Contaminant and Indicator Requirements.

4. MCLs and SMCLs: in accordance with NMED.

Table 01 86 46D – Primary and Secondary Water Quality Requirements 100 Percent of the Time 95 Percent of the Time

Maximum Contaminant Level

(MCL)

10 percent below 20 percent below

Secondary Maximum Contaminant Level

(SMCL)

SMCL 10 percent below

Table 01 86 46E - Biological Contaminant and Indicator Requirements

Water Quality Parameter Requirements

Turbidity <0.27 NTU 95 percent of the time

5. When demonstrating compliance with water quality requirements, provide sampling and analysis techniques according to the standards set by USEPA, NMED, NNEPA, and the “Standard Methods for the Examination of Water and Wastewater”.

6. Finished water may be blended with well water in the distribution system. The Government will conduct a blending analysis to determine water quality requirements for compatibility. Consult with the Government when determining optimal finished water quality.

F. Future Finished Water Quality Standards:

1. Design and construct treatment processes to provide adequate treatment for any proposed or pending regulations as of December 2016, by the USEPA, NMED, and NNEPA.

G. Water Quality Standards during Flood and Fire Events:

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1. “Basis of Design: Assessment of Flood and Wildfire Effects on Water Quality in Cutter Reservoir” listed under Project Conditions.

2. Provide treatment capabilities and/or conveyance system operational flexibility to meet primary treatment standards during these events with influent water quality shown in Table 01 86 46F – Influent Water Quality during Flood and Wildfire Events.

3. Review Basis of Design. If Contractor determines additional analysis is needed to adequately address 100-year flood and wildfire events, propose additional work.

1.09 WTP

RECOVERY

A. Minimum overall water recovery for combined processes: Greater or equal to 96 percent.

B. Obtain discharge permits if required. If discharge permits cannot be obtained, provide a zero liquid discharge WTP.

1.10 FUTURE INSTALLATION REQUIREMENTS

A. See Section 01 81 05 – General Performance Requirements.

1.11 BENCH AND PILOT TESTING

A. Completed Testing:

1. Refer to documents listed in Project Conditions.

2. Testing does not represent a preference for a WTP Process.

B. Perform Pilot Testing:

1. Provide Pilot Test Plan that details goals and details of testing.

2. Demonstrate compliance with treated water quality requirements.

3. Use pilot test results to refine operation and maintenance costs.

4. Provide Pilot Testing Results Report with results of testing.

Table 01 86 46F - Influent Water Quality During Flood and Wildfire Events

Event Water Quality Parameter Units Maximum

Value 100-Year Flood TSS mg/L 1000 Wildfire TSS mg/L 1000

Nitrate + Nitrite mg/L as N 1.5 Iron mg/L 0.3 Manganese mg/L 0.05 DOC mg/L 7 SUVA L/mg/m 4.0

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1.12 PERMITTING REQUIREMENTS

A. Obtain permits from jurisdictional agencies which may include:

1. San Juan County.

2. USEPA.

3. Navajo Nation EPA.

4. NMED.

5. Office of the State Engineer.

6. New Mexico State Land Office.

7. Army Corps: Refer to Section 01 57 30 - Water Pollution Control.

1.13 SPACE REQUIREMENTS

A. Water Treatment Processes:

1. Locate the main process equipment, excluding residuals handling system, inside.

2. Locate other processes and chemical storage inside or outside as dictated by best management practices given the site's location and climate.

B. Laboratory. Provide the following:

1. Dedicated area for shipped sample collection and preparation including:

a. Storage shelving for sample coolers.

b. Ice maker (for sample shipping).

c. Sample / cooler assembly area.

2. Dedicated area for on-site sample analysis including:

a. Cup sink or small sink for dumping samples.

b. Sample analysis area for basic instrumentation.

c. Shelving above.

3. Dedicated area for DI water system tanks.

4. Two Adjacent Sinks and Drying Rack:

a. One deep sink with “pre-rinse faucet” type faucet for primary washing.

b. One deep sink with swivel faucet and DI water hose for clean water rinsing.

c. Plumbing from DI water system tank area to DI water hose.

d. Glassware drying rack near clean water rinsing sink.

e. No cabinets under sinks.

5. Hood:

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a. Full size fume hood with tap water and cup sink.

b. Vented chemical storage cabinets underneath.

6. Epoxy counter tops and sinks.

7. Dedicated Area for Sample Lines:

a. Sample lines from sample points for regulatory sampling and from key points in each process and process train.

b. Sample sink:

1) Sample valves on each sample line.

2) Allows for continuous flow without splashing.

3) Do not send water to septic system.

4) Sink material can be plastic.

8. Chemical storage for acids, bases, flammables, and dry chemicals.

9. Mix of cabinets, drawers and shelves for storing equipment and lab supplies.

10. Shower/eye wash station(s).

11. Refrigerator for sample storage.

12. Dishwasher.

C. Provide unimpeded and ergonomic access to process equipment for operation and maintenance.

1.14 REDUNDANCY AND OPERATION RANGE REQUIREMENTS

A. Allow different facilities to operate throughout flow capacity range with one or more major process or equipment units out of service.

B. Include redundant, parallel WTP facilities to allow maintenance during operation.

1. Maximum Downtime: 24 hours at MDD.

2. Include residuals handling system in process train unless otherwise noted.

3. Treatment of most adverse raw water quality conditions found in Table 01 86 46A Monthly Cutter Reservoir Water Quality Summary and the Rain/Flood/Fire Study with minimum and maximum WTP flow rates.

4. Minimum of two parallel process trains.

a. WTP to treat the Maximum Day flow if one train taken off line.

b. Clearwell is exempted from producing Maximum Day flow if one train taken off line; in this case average day flow applies.

5. Provide hydraulic flexibility into the process trains so flow can be shifted from one process train to another train at intermediate points in the process train. Do

01 86 46 - 16 not take entire process train out of service when taking one unit process out of service.

6. Filtration systems to have sufficient capacity so that one of the filtration basins/skids may be out of service and another in backwash mode, while allowing the WTP to produce finished water at a rate equal to the Maximum Day flow.

7. Major equipment shall have at least one redundant unit. Off-skid rotating equipment commonly used for multiple process trains shall be in the duty/standby arrangement. Including air compressors, pumps, and other off-skid rotating equipment.

8. Chemical storage and feed facilities designed with a minimum of one redundant metering pump, of each size, for each chemical so that the chemical feed can be made to feed points, with a pump out of service.

1.15 DURABILITY REQUIREMENTS

A. Deterioration Resistance of Water Treatment Process Equipment:

1. Use materials resistant to corrosion from water, water vapor, or chemical exposure.

2. Use materials resistant to rot and biological degradation.

B. Use materials not damaged by common hand tools.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.01 STARTUP, TESTING, AND DEMONSTRATION

A. The Contractor may submit alternate procedures for Government approval.

B. Applies to the conveyance system defined in Section 01 81 05 - General Performance Requirements and WTP.

C. Dispose of water and waste produced in accordance with applicable state, local, tribal, and federal regulations.

D. The Government may witness startup, testing, and demonstration operations.

E. The Government will provide raw water to the start of the raw water line. Contractor shall provide chemicals and other items needed for operation through the completion of the Operation and Maintenance period detailed below.

01 86 46 - 17

F. Startup:

1. Connect, align, calibrate, and adjust system components. Check out procedures include:

a. Ring out of power, control and monitoring circuits prior to connection.

b. Voltage check of circuits.

c. Phase sequence check.

d. Connecting piping system cleanliness check.

e. Alignment check of connected machinery.

f. Pressure and vacuum testing of closed systems.

g. Lubrication check.

h. Equipment calibration.

i. Manual rotation/movement of moving parts.

j. Bump starting of electric motors to verify rotation.

k. Check of valving orientation and position status for manual operating mode.

l. Clean water testing of tanks for integrity.

m. Checkout of pumping equipment through clean water testing.

n. Verify proper instrumentation and control signal generation, transmission, reception and response.

2. Meet stated performance by equipment manufacturer for each piece of equipment.

G. Acceptance Testing:

1. Performed by Contractor and/or manufacturer representatives.

2. Functional Test (FT):

a. Follows Startup.

b. Demonstrate the readiness of each system component for the Performance Test.

c. FT protocol: Include a space next to each item on the protocol for the initials of the Contractor, indicating each item has been satisfactorily completed.

d. Perform FT: Operate valves, motors, controls, software, and other devices to ensure they are functional and ready for performance testing.

e. Complete FT as approved by COR and prior to commencing the Performance Test.

3. Performance Test (PT):

a. Follows FT.

01 86 46 - 18

b. Demonstrate the operation and performance of each system component.

c. Notify the COR at least 14 days in advance of testing.

d. Perform PT:

1) Collect and summarize data to demonstrate that the system components meet the PT test requirements that include, but are not limited to:

a) Flow

b) Pressure

c) Recovery

d) Individual equipment specific design criteria.

e. PT Report:

1) Contains the operating parameters and performance results.

2) Shall be approved before proceeding to Monitored Test.

f. Complete PT as approved by COR and prior to commencing the Monitored Test.

4. Monitored Test (MT):

a. Follows PT.

b. Demonstrate the ability of the conveyance system and WTP to operate and produce water as required.

c. Notify the COR at least 14 days in advance of testing.

d. MT Duration:

1) Operate conveyance and treatment systems in flow-through mode for 24 hours.

2) Operate WTP in recycle mode for seven days.

e. Perform MT:

1) Monitor the operating conditions and performance.

2) Continuously operate system without failures lasting for more than 1 hour.

3) Meet performance requirements.

f. During the MT:

1) Continuous monitoring of chlorine (free, total, and combined), turbidity, and pH.

2) Sample and verify water quality performance at least once during the flow through test.

01 86 46 - 19

3) COR may collect samples for independent analyses to confirm measurements and analyses.

g. MT Report:

1) Contains operating parameters and performance results.

2) Shall be approved before proceeding to Demonstration Testing.

h. Repeat MT if the first is not successful.

i. If the second MT is not successful:

1) Prepare a written plan for modifying the system to meet test requirements.

2) Submit the written plan within 7 days after the second MT ends.

j. Government may require Contractor to remove and install an alternative system to meet the performance requirements at cost to the Contractor.

H. Demonstration Testing:

1. Demonstration Test (DT):

a. Follows the MT.

b. Demonstrate ability of conveyance system and WTP to operate and produce water according as required for a longer duration.

c. Begin when directed by COR, approximately 60 days after completion of

MT.

d. DT duration: 3 months

e. Perform DT:

1) Continuous monitoring of chlorine (free, total, and combined), turbidity, and pH.

2) Sample and verify water quality performance on a weekly basis.

3) TOC compliance:

a) Sample 2 times per week.

b) Demonstrate compliance on a 3 week running average.

4) After 2 weeks of operation, sample for DBPs after Regulation Tank.

f. DT Report: contains the operating parameters and performance results.

g. Continuously operate system without failures for more than 4 hour.

h. Meet performance requirements.

i. Repeat 3 month test, if DT is not successful at contractor’s expense.

2. Extended Demonstration Test (EDT):

a. Follows the DT.

01 86 46 - 20

b. EDT duration: 3 months.

c. Continue DT test for TOC compliance only. Measure TOC on a weekly basis and demonstrate TOC compliance on a 3 week running average.

Other water quality testing is for regulatory compliance only.

d. In the last month of the EDT, sample for DBPs after Regulation Tank.

e. Amend the DT Report with results of the EDT.

3.02 INITIAL WTP OPERATION AND MAINTENANCE REQUIREMENTS

A. Operate and maintain WTP for Operation and Maintenance Period.

B. Operation and Maintenance Period:

1. Duration: 6 months (7 days per week).

2. Includes DT and EDT.

C. Contractor shall be the Public Water System certified operator of record for this WTP and conveyance system during this time period.

D. Provide staff and resources needed to operate the WTP and conveyance system.

E. Operations Plan:

1. Provide an Operations Plan for operation of the WTP and conveyance system.

2. Include information on how Contractor will interface with other parts of the raw water and distribution system beyond the finished water line.

F. During Operation and Maintenance Period:

1. Operate the WTP and conveyance system with the level of operator(s) required by

NMED.

2. Optimize the treatment system.

3. Maintain system and building components.

4. Perform Demonstration Test and Extended Demonstration Test.

5. Produce treated water that meets regulatory requirements.

6. Produce water to sufficiently meet demands and distribution system storage.

7. Sample and analyze water for regulatory compliance.

8. Prepare and submit NMED compliance documentation.

9. Hold meetings with the COR and WTP staff twice per month to discuss WTP operational issues, WTP maintenance, and operator training.

10. Conduct training according to Section 01 79 20 – Training.

11. Provide monthly status reports to the Government.

01 86 46 - 21

G. Systems and equipment shall be clean and current on maintenance at the completion of the Operation Period.

01 86 46 - 22

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Drawings

52 00 00 - 1

SECTION 52 00 00

DRAWINGS

PART 1 GENERAL

1.01 DISCREPANCIES, ERRORS, OR OMISSIONS

A. Inform the CO of discrepancies discovered on drawings in accordance with clause at FAR 52.236-21, Specifications and Drawings for Construction. Promptly inform the CO of discrepancies discovered on the drawings. The CO will make a determination in writing. Any adjustment by the Contractor without such a determination shall be at its own risk and expense.

1.02 PROJECT CONDITIONS

A. Where there are differences as determined by the CO between details and dimensions shown on drawings and details and dimensions of existing features at jobsite, use details and dimensions of existing features at jobsite.

1.03 INFORMATION DRAWINGS

A. Drawings marked "For Information Only" in the drawing list are included to show existing features about which knowledge is required to perform work under this contract.

These drawings do not show work to be performed under this contract.

B. If there are differences as determined by the CO between details and dimensions shown on these drawings and those of existing features at jobsite, use details and dimensions of existing features at jobsite.

1.04 STANDARD DRAWINGS

A. Standard drawings may show details which are not a part of work under this contract.

Disregard details shown on these drawings which are not applicable to work under this contract.

1.05 COPIES OF DRAWINGS

A. One set of full-size (22 inches by 34 inches) drawings, except standard drawings, will be furnished to the Contractor.

B. Upon request, additional half-size (11 inches by 17 inches) copies of standard drawings will be furnished to the Contractor.

1.06 LIST OF DRAWINGS

A. Drawings listed in Table 52 00 00A - List of Drawings, are made a part of Section C - Description/Specifications.

52 00 00 - 2

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

52 00 00 - 3

Table 52 00 00A - List of Drawings

Sheet No.

Drawing No. Title

General:

1 1695-529-401 General Map

2 1695-529-2101 Project Location Map

3 1695-529-2103 Reach 21 – Right-of-Way Exhibit Maps

Information Drawings:

4 1695-D-Figure 1 Line Pipe – Site Plan

5 1695-D-Figure 2 System Profile – Plan and Profile – Beginning to Sta.

23100+00 – Sheet 1 of 5

6 1695-D-Figure 3 Plan and Profile – Sta. 23100+00 to Sta. 23150+00 – Sheet

7 1695-D-Figure 4 Plan and Profile – Station 23150+00 to Sta. 23200+00 – Sheet 3 of 5

8 1695-D-Figure 5 Plan and Profile – Station 23200+00 to Sta. 23250+00 – Sheet 4 of 5

9 1695-D-Figure 6 Plan and Profile – Sta. 23250+00 to End – Sheet 5 of 5

10 1695-D-Figure 7 Phase 3 Connection – Steel Pipe - Plan

10A C-12 Eastern Navajo Water Pipeline - Cutter Lateral Phase 3 – As-Built Plan and Profile – Sta 0+00 to 25+00

10B C-13 Eastern Navajo Water Pipeline - Cutter Lateral Phase 3 – As-Built Plan and Profile – Sta 25+00 to 51+25

10C C-48 Eastern Navajo Water Pipeline - Cutter Lateral Phase 3 – As-Built – DZ Tanks Piping Plan

11 1695-D-355 Cathodic Protection - Test Station and Junction Box

11A 1695-D-60095 Cutter Lateral SCADA Systems Integration Overview

12 Process Instrumentation and Sampling Plan Schematic Example

13 Cutter Reservoir – Water Quality Data

52 00 00 - 4

Table 52 00 00A - List of Drawings

Sheet No.

Drawing No. Title

14 Pipe Schedule

Standard Drawings:

15 40-D-6032 Induction Motors – Design and Nameplate Data to be Furnished by Contractor