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Ash Meadows NWR Water Treatment System Service SOLICITATION NO. 140FS124Q0051
FWS
This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in Federal Acquisition Regulation (FAR) Subpart 12.6, as supplemented with additional information included in this notice. This announcement constitutes the only solicitation; quotes are being requested and a separate written solicitation will not be issued.
U.S. Fish and Wildlife Service is issuing a request for Quotes Water Treatment System Service located at FWS ASH MEADOWS NWR, HCR 70, BOX 610Z, AMARGOSA VALLEY, NV 89020‐0115.
The anticipated performance period is from 3/11/2024 to 5/7/2024.
This Request for Quotation (RFQ) is a TOTAL SMALL BUSINESS SET ASIDE and is conducted under the procedures of FAR Parts 12 and 13, incorporating provisions and clauses in effect through Federal Acquisition Circular 2022‐06. The NAICS code is 221310 and the small business size standard is $41.00.
Instructions All responsible small business sources may submit a quote, which shall be considered by the agency. Award will be made as a firm‐fixed‐price contract. The basis of award is the tradeoff method, where consideration of (i) technical capability of the item offered to meet the Government requirement; (ii) price; (iii) past performance will result in the selection of the quote most beneficial to the government. Technical and past performance, when combined, are considered approximately equal to price. Award will be made to a responsible source pursuant to FAR subpart 9.1.
Please submit:
1. Your quotation (showing unit and total price) on company letterhead or the enclosed form;
2. Supporting documentation for all additional evaluation factors listed on the next page;
3. SAM.gov UEI code;
4. Point of contact: phone number and e‐mail address.
5. If your company holds a GSA contract that would apply to this requirement, please provide the contract number.
Quotes Due: 03/01/2024 by 5pm Pacific E‐Mail Quote Submission: chelsea_devivo@fws.gov
In order to have a quote considered for award, respondent must be registered at the System for Award Management (SAM) website (https://www.sam.gov) as an active vendor at the time of quote submission.
Ash Meadows NWR Water Treatment System Service SOLICITATION NO. 140FS124Q0051
FWS
STATEMENT OF WORK
Water Treatment System Service
Ash Meadows National Wildlife Refuge
1. GENERAL
U. S. Fish and Wildlife Service (FWS), Ash Meadows National Wildlife Refuge (AMNWR) owns and manages a variety of facilities to support its mission. These facilities are serviced by wells which, historically, have required water treatment to meet drinking water standards.
Routine service of these systems is required to maintain operability.
2. SCOPE OF WORK
2.1 The Contractor will service an existing water treatment system located at the primary well serving Ash Meadows National Wildlife Refuge. The system includes a water softener (24-inch diameter tank), a carbon filter (24-inch diameter tank), and an arsenic/iron filter (30-inch diameter tank). The Contractor will replace all filter media in accordance with manufacturer specifications and Ash Meadows NWR Headquarters Public Water System Design Report of 2015, replace an existing 2-inch PVC valve with spigot on the well head with a brass valve and spigot, and document any additional repair or maintenance needed to ensure proper function of system components.
2.2 Services:
2.2.1 The Contractor must provide all equipment, materials, supplies, labor, and services required to complete the contract, including all appurtenances for the project included in this State of Work.
2.2.2 The Contractor must provide all necessary inspections, testing, commissioning, reports, and photos to assure completed project is correct and functioning properly.
2.2.3 Contractor is responsible for coordinating, generating, and submitting all Federal, State, and Local documentation required to execute this contract and any associated fees.
2.2.4 Contractor is responsible for Project Safety during construction as required by OSHA, FWS, and all relevant regulations.
2.2.5 Contractor is responsible for quality control of his own work and work performed by its Subcontractors and their Sub-subcontractors.
2.2.6 Contractor assumes responsibility to Government for the proper performance of the
Work of Subcontractors and all acts and omissions in connection with such performance. Nothing in the Contract Documents is intended or deemed to create any legal or contractual relationship between Government and any Subcontractor or Sub-subcontractor.
2.3 Schedule:
2.3.1 The service visit will be scheduled with the Refuge Manager.
2.3.2 The Contractor shall consider weather impact when determining its work plan and schedule.
3. Work Area
3.1 The work will take place on the AMNWR approximately 22 miles northwest of Pahrump, Nevada. The contractor will be escorted to the specific well site by a staff member.
3.2 Normal Work Hours: The normal work area hours will be Monday thru Friday 7:00 a.m.
– 4:00 p.m. Work must not be conducted on site outside of these hours, on Weekends, or on Government holidays, unless written approval is given to the Contractor by the Refuge Manager. Any request to work outside the Normal Work Hours shall be submitted in writing at least 7 calendar days in advance of the work to be performed outside the Normal Work Hours.
3.3 Access: The Contractor shall coordinate with the Refuge Manager to determine the optimal period and methodology to access the work area.
3.3.1.1 If Emergency Services are required, then the Contractor shall notify the Refuge
Manager within one hour of the incident requiring the service and provide any supplemental documentation necessary for FWS incident recording and reporting.
3.4 Clean Up: The Contractor must keep the work site in neat appearance.
3.4.1 Upon completion of the work, the Contractor shall remove from the Refuge all unused materials, rubbish, and other materials belonging to it, used by it, and generated by it during the project. If the Contractor fails to do so, then the same may be removed by the Government at the expense of the Contractor and its surety.
4. PERIOD OF PERFORMANCE
The period of performance for this contract shall be 45 calendar days after award.
5. GOVERNMENT FURNISHED ITEMS:
5.1 There is no Government Furnished Material, Labor, Equipment, or Utilities for this contract.
6. INSPECTION AND ACCEPTANCE:
6.1 The Government will inspect the work and work area as required to ensure all contract requirements are met.
6.2 Final Inspection: The Contractor shall notify the Refuge Manager at least seven calendar days prior to the anticipated date of completion of all work specified in the contract.
Upon completion of the work, the Refuge Manager shall proceed with final inspection and shall complete such inspection as promptly as practicable. The time required for such inspection and the making of any corrections as a result thereof shall be included in the contract performance time.
6.3 Final Government acceptance will be granted once all contract requirements are met.
6. OWNER AND TECHNICAL COORDINATOR:
Owner:
U. S. Fish and Wildlife Service Ash Meadows National Wildlife Refuge 8757 E Spring Meadows Road Amargosa Valley, NV 89020
Technical Coordinator:
Mike Bower, Refuge Manager
(775) 372-5435 – Office
(775) 277-1268 – Mobile
7. CONTRACT CLOSEOUT
Release of Claims: After completion of work and prior to final payment, the Contractor shall furnish to the Contracting Officer a release of claims Form DI-137, properly executed by the Contractor, releasing claims against the United States arising out of the contract, other than claims specifically accepted from the operation of the release.
Ash Meadows NWR Headquarters Public Water System
Design Report
September 1, 2015
Prepared for Synergy Systems, Inc.
Tom W. Smith PE Olympic Stone, Inc.
Affix Stamp Here
TABLE OF CONTENTS
SECTION PAGE
Proposed Public Water System for Ash Meadows National Wildlife Refuge 3
Public Water System Designation and Water Demand 3
Water Source 4
Treatment Method 5
Distribution and System Storage 5
Waste Stream 6
Operations and Maintenance 6
Cross Connection and Backflow Controls 6
Emergency Planning 6
Proposed Public Water System for Ash Meadows National Wildlife Refuge Headquarters
Ash Meadows National Wildlife Refuge is located approximately 40 miles west of Pahrump, Nevada. The refuge encompasses over 24,000 acres of protected lands. The proposed Ash Meadows Water System (System) will serve a 10 acre headquarters area within the larger refuge.
The existing headquarters facility utilizes a private water system with water sourced from an improved artesian well. The well improvements were installed in 1996 under Nevada State Well Permit No.
61219.
The Refuge has recently completed a new 11,000 SF visitor center and new administration offices. The new proposed public water system will provide potable water for these new facilities and the existing facilities that remain within the headquarters area.
The proposed water system will be owned and operated by the Ash Meadows National Wildlife Refuge, the refuge is also the only user of the system. Two metered service connections are planned for the system. Due to the protected nature of the refuge area, no further developments requiring expansions of the system are foreseen.
In compliance with NAC 445A.54026; a preliminary engineering report was prepared and submitted to the Nevada State Bureau of Safe Drinking Water in March of 2015. This report was reviewed and no comments were made on the planned design. The final design documents closely follow the preliminary engineering report.
Public Water System Designation and Water Demand
The Ash Meadows National Wildlife Refuge has constructed a new visitor center and administrative facility. The new facility is a single building of 11,000 SF, with up to 14 full time employee work stations.
In addition, visitor use will fluctuate between 0 visitors and up to 100 daily visitors on rare occasions.
NRS 445A.235 defines a Public Water System as “a system that provides water for human consumption, if the system has 15 or more service connections or if the system regularly serves 25 or more persons.”
The phrase “regularly serves” is characterized by the Federal Government in 40 CFR 141.2 as serving 25 or more persons at least 60 days out of the year.
The proposed water system at Ash Meadows will have less than 15 service connections but the facility will regularly serve more than 25 persons. Under the NRS definition the facility requires a Public Water System.
The proposed system will not serve more than 5 permanent residents, and will not serve 25 or more of the same persons for more than 6 months in any year. This use characterizes the proposed system as a transient, non-community public water system. (NRS 445A.808 & 848). This System classification, if approved by the BSDW does not require a certified operator (NRS 445A.875-2).
Current plans call for the System to provide water to two building services. The facility design engineer has calculated the water requirements at each building. The new visitor/administrative building will require a peak flow of 40 GPM at 40 psi, and the existing bunkhouse building1 will require a peak flow of 12 GPM at 50 psi (Bunkhouse branch line includes FWS service yard and plant maintenance flow).
The new visitor/administrative building will require a fire protection system. The new facility the use of a separate non-potable water storage tank with emergency pumps to provide required fire flows and fire storage capacity. The storage tank is separated from the public water system by an air gap and by a backflow preventer. The proposed new public water system will provide fill and make up water for the fire storage tank but is not included in the fire storage and flow calculations for the State Fire Marshal’s permitting. No fire flows are required for the existing bunkhouse.
Water Source
The proposed water source for this system is a new well located adjacent to an existing well which has served the facility for over 15 years. The existing (old) well had an inadequate sanitary seal extending only fifty feet below the surface. In preparation for this new water system the National Wildlife Refuge had the new well drilled in March of 2015. The new well was constructed in accordance with NAC 445A 66855 through 6693. The design of the well and wellhead is included in the design plans. The well is artesian and does not require a pump in the well itself. The old well has been abandoned per State regulations.
Water rights documentation, well logs, flow tests, and water quality characteristics for the new well are included in Appendix A of this report.
Proposed Treatment Method
The State requirements for transient non-community water system quality include Secondary Drinking Water Standards, Nitrate, Nitrite, Nitrate + Nitrite, Total Coliform and Fecal Coliform/E. Coli. The Owner has also included arsenic reduction in the treatment system design.
The history of tests from the old well adjacent to the new water system well indicated that bacterial contamination was not present and that only fluoride was slightly over the State Secondary Standards.
Arsenic was measured at 10 ppb, right at the limit for community water systems. The treatment design includes chlorination for reducing iron in the water, carbon filtration for removing the chlorine, water softening to enhance the effectiveness of the arsenic filter, and a resin media arsenic filter.
Proposed Treatment Plant Location and Structure
A CXT prefabricated concrete building with dimensions of 12’ x 10’ has been designed for the treatment and pump building. This building is located near the well head and is more than three feet above the FEMA 100 year flood plain. The floor of the building is raised above the surrounding ground to enhance drainage away from the building. A floor sink with a trap and primer system is included. The interior
1 The bunkhouse is an existing structure with a water closet and shower. It is used intermittently for short & long term stays by researchers or other personnel working on the refuge. Maximum occupancy is 5 persons.
finish floor shall slope to the drain. An OSHA approved eye wash station is to be installed in the building.
Power to the building is from the facilities existing grid tied power mains. Power enters the building at a disconnect switch and through a manual transfer switch (for generator backup) then on to the load center. A back-up generator is available at the Refuge to power the treatment plant and pumps during power outages. A detail of the treatment plan layout and schematic are included in the design plans.
Distribution System
Dual (primary and back up) centrifugal pumps are used to pressurize the system to provide sufficient head to pass through the treatment system and to reach the far end of the distribution network. The design plan sheets include a hydraulic profile from the wellhead to the end of the distribution main. The calculations for hydraulic capacity are included in Appendix B.
The pumps will be controlled using a pressure sensor (transducer) located at the downstream end of the treatment system. Pump speeds will be adjusted automatically by variable frequency controllers to maintain a fixed distribution system pressure for any flow up to the design peak flow requirement. The initial system pressure setting is 60 psi.
Due to the limited nature of this system, with no foreseeable expansions and no fire flow requirements, a 4” main was selected. This main is smaller than the 6” standard water main. The 4” size meets the hydraulic needs of the system and also provides higher velocity flows during the normal, non-peak, usage of the system. Since the hydraulic calculations support the use of a 4” C900 PVC main an exception from the 6” minimum is requested per NAC 445A.67115 (2).
System Storage
The water distribution system design does not include operational or emergency storage. This system is unusual in that the public water system Owner/Operator is the same entity as the User (namely, the US Fish & Wildlife Service). In this case the User has opted to design operations storage inside the user facilities (not part of the public water system). This storage includes a separate fire water storage facility and a pressurized storage capacity of 80 gallons for meeting peak visitor flow demand. In addition the User has full operational control over the water system. Planned outages can be scheduled around User needs. Unplanned outages can be accommodated by modifications to the User’s demand. These modifications can include restricting water use to non-potable purposes (as has been the case prior to this system installation), closing the new plumbed restrooms and utilizing the existing public outhouses, and/or closing the User’s facility until the water system is back on line. There are no permanent residents at the facility. The Owner/User is a wildlife refuge with a significant concern about minimizing the visual impact of the water system, specifically the impact of above ground tanks. A full size back up pump is installed and available for immediate use if the primary pump fails. The User’s flexibility, operational control, and the system redundancy reduce the need for operational or emergency storage in the system and provide the opportunity to avoid unnecessary visual impacts. This engineering option to not have operational or emergency storage must be approved by the State Bureau of Safe Drinking Water per NAC 445A.66745-(2).
Treatment Waste Stream
Waste water generated by the treatment process will consist of backwash discharge. Arsenic and chlorine are both fixed in the filtering process and will not be released during back wash. The maximum single back wash cycle is the regeneration cycle of the water softener. This process will generate under 1,000 gallons in an hour and a half. This cycling will occur once for every 15,000 gallons of treated product water, (about once per two weeks). The backwash water will flow to a surge tank at the well building. This tank will dose the backwash flow into the existing septic system over a period of about 8 hours without overwhelming it. (Note the net effluent to the on-site sewage system has been decreased with the completion of this project. The added backwash flows are less than the effluent eliminated by moving facilities to the new visitor center and its new septic system. (See plan sheet 6 of 8 for more details).
The arsenic adsorption media will need to be checked periodically to identify when it is approaching limits for safe disposal in landfills (non-hazardous). The expected media life is > 1 million gallons of product water or about 10-12 years. (Only 20% of flow passes arsenic filter). Initial recommendations are that the media be tested every two years and plan to replace it every 6 years.
Operation and Maintenance
The Ash Meadows National Wildlife Refuge will provide the personnel and resources to operate and maintain the proposed water system. Attached as Appendix C to this report is an Operations and Maintenance Plan.
Cross Connection and Backflow Prevention Plan
Attached as Appendix C to this report is a cross connection and backflow prevention plan for the water system.
Emergency Operations and System Restoration
Attached as Appendix C to this report is a plan for emergency operations under various local and area emergencies. Included in the plan are system restoration procedures.
Ash Meadows NWR Headquarters PWS
Appendix A
Well Drill Log Water Rights (original diversion and note on new well rights)
Flow Measurements Note on Required Testing
Water Test Results after Treatment
Note: 50' static water level shown is incorrect. Well is artesian, static pressure is 3 to 4 psi and 0.7 psi at 52 gpm. (see test info from April 16, 2015 and further test info dated July 7, 2015
Tom Smith
From: Hranac, Gregory <gregory_hranac@fws.gov> Sent: Wednesday, April 29, 2015 7:12 AM To: Kevin DesRoberts; Annjanette Bagozzi; David McQueen; Arthur Shine Subject: Fwd: Ash Meadows Replacement Well
---------- Forwarded message ---------- From: Ball, Gary <gary_ball@fws.gov> Date: Fri, Apr 24, 2015 at 10:31 AM Subject: Ash Meadows Replacement Well To: Gregory Hranac <gregory_hranac@fws.gov> Cc: "Mayer, Tim" <tim_mayer@fws.gov>
Greg -
FYI, I spoke with the Nevada Division of Water Resources, and they indicate that as long as the original well is "plugged" and the replacement well is within 300 feet of the original well and within the same ¼-¼ section, no changes to the water rights are required. When NDWR authorized the drilling of the replacement well, they made the determination that it would meet the criteria.
- Gary
Gary Ball, PE, PLS, CWRE Hydrologist, Water Resources Branch US Fish and Wildlife Service 911 NE 11th Ave Portland, OR 97232 503-736-4788 office 503-508-0400 cell
Gregory A. Hranac RA, CSI CCS, PMP Project Manager U.S. Fish & Wildlife Service Division of Engineering/Safety Region 1/8 Design and Construction Branch 911 NE 11th Ave Portland OR 97232-4181 Office: 503-736-4798 Mobile: 971-404-9552
FAX: 503-231-6847
Email: gregory_hranac@fws.gov
This email has been scanned by the Symantec Email Security.cloud service.
For more information please visit http://www.symanteccloud.com
Great Basin Drilling
1220 E.MANSE
PAHRUMP, NV.89048
T (775) 727-4462 F (775) 727-4525 Lic. #047333 Email: gbdnv@yahoo.com
April 16, 2015
USA Dish & Wildlife 911 NE 11th Ave Portland OR 97323
Attn: Kevin DesRoberts
Re: Well Flowage
The Well will flow 75 to 85GPM through 6’’ open discharge from top of casing.
The shut in pressure on the Well is 3 to 4PSI. The Well has a bolt flange half welded to the top of it with a blank half bolted to it with a gasket to seal top of Well. A pittless adapter was welded on casing below ground and Well was plumbed to booster system.
From: DesRoberts, Kevin [mailto:kevin_desroberts@fws.gov] Sent: Tuesday, July 07, 2015 9:39 AM To: David McQueen Cc: Gregory Hranac; Annjanette Bagozzi Subject: Re: Water System Permit Additional Information
Hi David, We've finally been able to complete additional tests on the water treatment system. A pressure reading was taken on the suction side of the pump and with a max flow rate of 52 gpm the pressure reading was 0.75 psi..
Attached are the test results for water samples collected at the well house. We confirmed with Jim Larson at the Bureau of Safe Drinking Water that we only need to meet Secondary Drinking Water Standards for our Transient Non-Community Public Water System. In addition, since Arsenic is not included in the testing requirements for this water system, testing at the wellhead is not required by the State.
Kevin
Kevin J. DesRoberts, Deputy Project Leader Desert National Wildlife Refuge Complex 4701 N. Torrey Pines DR Las Vegas, NV 89130 702-515-5452 702-375-4005 (cell) Kevin_DesRoberts@fws.gov
Appendix B
Hydraulic Calculations for Distribution System
Ash Meadows HQ PWS Distribution System ‐ (Non‐Loop)
Cumulative Head Loss Calculations
52 GPM Flow
Loss (ft) Head (ft) PSI Grade
At Artesian Well Head 2.0 0.9 2199.0 (pump inlet pressure +0.75 psi at 52 GPM)
3" steel pipe + fittings ‐0.5 1.5 0.6 2198.5 15' draft tube, 30 ft to pump, fittings
Pump Boost 208.0 209.5 90.7 2406.5 Berkeley 7.19" impeller model B1WP
Check valve & isolation valve ‐1.8 207.7 89.9 2404.7
2" Sch 80 PVC to Contact Tank ‐1.8 205.9 89.2 2402.9 10 feet of 2" PVC, 4 90 deg elbows, injector
Contact Tank ‐4.5 201.4 87.2 2398.4 General tank loss
Pressure Tank ‐4.5 191.0 82.7 2393.9 Surge tank to reduce hammer
Carbon Filter & Fittings ‐19.6 171.4 74.2 2374.3 See attached eqipment chart
Water Softener & Fittings ‐16.2 155.2 67.2 2358.1 See attached eqipment chart
Arsenic Filter (20% Flow) & 3‐way valve ‐6.9 148.3 64.2 2351.2 See attached eqipment chart
Pipe to Outside Connector ‐2.8 138.6 60.0 2348.4 Initial Set Point for System Pressure
Pipe to Main Branch ‐0.7 137.9 59.7 2347.7 375 ft at 52 gpm in 4" C‐900
Elev loss to Bunk House Tee ‐1.0 136.9 59.3 2347.7
Pipe to Bunk House ‐4.4 133.5 57.8 2343.3 270 ft at 12 gpm 1 1/2" main
Elevation loss to VC ‐15.0 121.9 52.8 2347.7
Pipe to Visitor Center Tee ‐0.8 121.1 52.4 2346.9 650 ft 4" C900 & Tee 40 gpm
Branch to VC w/ RPPA Backflow ‐14.9 106.2 46.0 2332.0 20' of 2" and RPPA (10 psi loss)
RPPA to VC building ‐11.6 94.6 41.0 2320.4 370 ft RPPA to VC
Notes:
Main line from pump house to visitor center branch is 4" C‐900
Pressure (surge) Tank in Pump House is only for water hammer/surge control, does not control pumps.
Sch 80 PVC used inside pump house
Measured flow capacity at well head is over 65 GPM.
Appendix C
Manual for Operations and Maintenance
Emergency System Restoration
Backflow & Cross Connection Prevention Plan
Additional Information
Ash Meadows Headquarters Public Water Supply Manual of Operation, Maintenance, Emergency Response, and Cross Connection Control
Administrative Address: 610 Spring Meadows Rd., Amargosa Valley, NV 89020
Physical Address: 610 Spring Meadows Rd., Amargosa Valley, NV 89020
PWS ID# TBD
Parcel: 21-321-12 Section: 3 Township: 18S Range: 50E
July, 2015
Prepared with the assistance of the Nevada Rural Water Association, supported by funding from the State Revolving Loan Fund administered by the Nevada Division of Environmental Protection.
Table of Contents Operation and Maintenance Manual
System Description Standard Operating Procedures
Safety Program System Operation & Maintenance Schedule Customer or User Complaints Valve Exercise Program Preventive Maintenance
Emergency Response Plan
Introduction Purpose Emergency Phone Numbers General Emergency Response Actions Maximum Contaminant Level Exceedance Natural Disasters Unnatural Conditions System Failure Reporting Emergencies
Cross Connection Control Program Purpose Authorization Responsibility Policy Maintenance of Records Annual Backflow Prevention Assembly Testing and Repairs Backflow Prevention Assembly Requirements Responsibilities for Backflow Prevention Assembly Installation, Maintenance and Testing Implementation
Appendices System Map and General Regulations Boil Water Order for MCL Violation for Coliform Bacteria Pre-Cautionary Boil Water Order Boil Water Order: Low Pressure ................................. Error! Bookmark not defined.
Staffing Levels and Staff Qualifications ....................... Error! Bookmark not defined.
N/ANDEP Required Sampling Schedule- ‘Attachment A’ TBD Bacteriological Site Sampling Plan TBD
Operation and Maintenance Manual
System NAME: Ash Meadows, PWS PWS ID Number: TBD Number of connections: 3 Population served: 20-30 transient
System Description The Ash Meadows Public Water System (PWS) is located in Amargosa Valley, Nevada.
The system consists of one pressure zone served by one well. The purpose of the water system is to provide potable water for the Ash Meadows National Wildlife Refuge Visitor Center and staff. The system is classified as a non-community transient Water System.
Ash Meadows, Total Connections = 1 Residential (metered), 1 Commercial (metered), 1 Commercial (unmetered for plant maintenance).
Approximate Population Served (BSDW database) = up to 5 short term residents and 20-25 daily employees and visitors.
The Ash Meadows HQ PWS well was drilled in March of 2015 by Great Basin Drilling (Address: PO Box 4220, Pahrump, NV 89041; Contractor’s Lic. No. 30880; Driller’s Lic.
No. 1642). The well was drilled to a depth of 160 feet, below ground surface and is cased to 160. The casing is perforated from 110 to 160 feet below ground surface. The static water level at the time of well completion was 0 with an artesian flow of 52 GPM at 0.75 PSI. The well is located in the Death Valley Area hydrographic basin (#226). The well supplies water to the system pumps and treatment plant.
Drinking water supply wells are categorized according to the use pattern. A Permanent well is a well that is routinely utilized throughout the year, including wells utilized daily or as back-up/standby sources for peak demands or operational flexibility. An Emergency well is one that is not preferred for usage due to undesirable conditions (e.g. water quality, well construction) but could be utilized if a failure of the primary source occurs. Seasonal wells are utilized only during certain periods of the year. Water quality can undergo significant changes as a well goes unused, so Emergency and Seasonal wells require site-specific start-up procedures to ensure that water with degraded quality is not pumped into the system. There is no emergency or seasonal well for this site. This well is used on a permanent basis. The well is located in a protected area 20 feet southeast of the pump house in the fenced in portion of the maintenance facility of the refuge.
Table 1: PWS Equipment for Well, Pumps, and Treatment
Type
Location
Condition
Model Number
Exterior Manual Transfer Switch Grid / Generator
Pump House Exterior
New Eaton
DT223 URH-N
Load Center Pump House
Interior New SQ D Homeline
HOM1224L125RB
Exterior Manual Transfer Switch
Pump 1 / Pump 2
Pump House Interior
New Eaton
DT223 URH-N
#1 VFD Motor Drive Pump House Interior
New IQ 1000
#1 VFD pump and motor
Pump House Interior
New Berkely B1WPS
#1 Pressure Relief Valve
Pump House Interior
New Adjust 75-150 PSI
#2 VFD Motor Drive Pump House Interior
New IQ 1000
#2 VFD pump and motor
Pump House Interior
New Berkely B1WPS
#2 Pressure Relief Valve
Pump House Interior
New Adjustable 75-150
PSI
Air Release Valve Pump House
Interior New
ValMatic 15A.2
Totalizing Water Meter
Pump House Interior
New Zurn T-10 2
Chlorine Flow Switch Pump House
Interior New
Harwil CF-112
Sodium Hypochlorite injection pump
Pump House Interior
New Stenner 45MHP2
Sodium Hypochlorite tank
Pump House Interior
New 30 Gallon dual containment
TC2435DC
Carbon Filter Pump House
Interior New Pentair 3150 NXT
-10
Water Softener Pump House
Interior New Pentair Fleck 2900
- 300
Brine Tank Pump House
Interior New Pentair Fleck 2900
- 300
Arsenic Dilution mixing valve
Pump House Interior
New Danfoss 193B1507
Flow Meter #1 Pump House
Interior New Blue-White F1000-
RB
Flow Meter #2 Pump House
Interior New
Blue-White F1000
Arsenic Filter Pump House
Interior New Pentair 3150 NXT
-10
Air Release Valve Pump House
Interior New
ValMatic 15A.1
Steel hydro-pneumatic tank (4 gallons)
Pump House Interior
New Flexcon Jet Rite
PJR-15
#1 Pressure Transducer
Pump House Interior
New
IFM PA 3224
#2 Pressure Transducer
Pump House Interior
New
IFM PA 3224
Surge tanks to moderate the backwash flow to the septic system
Pump House Exterior
New Two 500 gallon tanks with discharge flow valve
1” RPPA Pump House New Zurn 975XL2
Spare Parts
• 2’) Suction flex coupling for Pumps 1 & 2
• 2’) Discharge flex coupling for Pumps 1 & 2
• 1) Chlorine pump system pump tube
• 2) Chlorine pump tube latches
• 15’) Chlorine pump suction hose
• 2) Buss fuses for Carbon and Arsenic filter 120V:24V transformer
• 1) 2” True union ball valve
• 2) T8 Light Bulbs
The system relies on the Ash Meadows NWR management and maintenance personnel for continuous operation of the well and on nearby supply houses including Hanson Water Treatment located in Las Vegas, (702) 364-4550 and well professional Great Basin Drilling located in Pahrump, NV (775) 727-4462. Suppliers are listed in the contacts section under the Emergency Response Plan.
Disinfection The source water for the water system tests negative for bacteriological contaminants.
Routine, continuous disinfection is not practiced by the Ash Meadows HQ PWS. Periodic disinfection can be performed using [Sodium Hypochlorite] by using direct injection from the bottle and bypassing the carbon filter, the water softener and the arsenic filter. The Material Safety Data Sheet for [Sodium Hypochlorite] is kept on site. An emergency eye wash is maintained in the treatment building for employees who may come in contact with chlorine disinfectant.
System Monitoring Ash Meadows personnel are responsible for monitoring the Ash Meadows HQ PWS. A NWR staff member will oversee the system and collect quarterly samples for Coliform bacteria and any other testing required to remain in compliance with the required sampling protocol according to the Nevada Division of Environmental Protection, Bureau of Safe Drinking Water. The required testing will be added to this document as Appendix “A” when determined by the Nevada BSDW. Chlorine residual is not required as this system is supplied by subsurface source (well). This data is included in quarterly reports to Nevada Division of Environmental Protection.
Standard (Normal) Operating Procedures
Pump Operations:
Manual Pump Switch Over (Pump #1 to Pump #2)
1. Press “Stop” on Pump #1 controller
2. Ensure inlet and discharge valves are closed on Pump #1
3. Ensure inlet and discharge valves are open on Pump #2
4. Pull Pump #1 power handle down to “Off” position
5. Switch Pump selector from Pump #1 to Pump #2
6. Lift Pump #2 power handle to “On” Position
7. Press “Auto” on Pump #2 controller
8. Confirm Pump #2 controller shows pump is operating normally
Manual Pump Switch Over (Pump #2 to Pump #1)
1. Press “Stop” on Pump #2 controller
2. Ensure inlet and discharge valves are closed on Pump #2
3. Ensure inlet and discharge valves are open on Pump #1
4. Pull Pump #2 power handle down to “Off” position
5. Switch Pump selector from Pump #2 to Pump #1
6. Lift Pump #1 power handle to “On” Position
7. Press “Auto” on Pump #1 controller
8. Confirm Pump #1 controller shows pump is operating normally
Generator Operations:
Switch to Generator Backup During Power Outage
1. Position backup generator near Plant generator input plug.
2. Check generator for adequate fuel and oil
3. Follow generator starting procedures
4. Allow generator to warm up.
5. Stop pumps in building by pushing “Stop” on active pump controller.
6. Put both pump power switch arms in “Off” position.
7. Put generator input manual transfer switch in “Off” position.
8. Plug generator power cord into inlet plug on building.
9. Move manual transfer selector switch to “Generator” position
10. Lift active pump power switch to “On” position
11. Start active pump by pushing “Auto” on appropriate controller.
12. Confirm pump is operating normally by checking controller display.
Switch to Grid Power from Generator Power
1. Stop pump in building by pushing “Stop” on active pump controller
2. Put both pump power switch arms in “Off” position
3. Put generator input manual transfer switch in “Off” position
4. Unplug generator power cord and shut down generator
5. Move manual transfer switch to “Grid” position.
6. Lift pump power switch to “On” position for active pump
7. Start active pump by pressing “Auto” on pump’s controller.
8. Confirm active pump is operating normally by checking controller display
Chlorine Chemical Feed Procedures. (NAC 445A.66795) At the Ash Meadows water system treatment plant chlorine in the form of sodium hypochlorite in a 10% solution is used to oxidize iron in the water to enhance downstream filtration. This chlorination process is not designed to disinfect the water. The chlorine (along with iron) is mostly removed from the treated water in the activated charcoal filter (Carbon Filter).
Always use proper personal protective equipment when handling chlorine chemicals. Read MSDS information (below and in plant MSDS handbook). Check that emergency eye wash is operational before handling chlorine solutions.
The sodium hypochlorite is supplied as a liquid at the 10% concentration. (Available at Home Depot and other retailers)
The 10% concentrate liquid sodium hypochlorite is mixed with water in the 30 gallon double walled storage tank in the treatment building. Add 138 ml of 10% solution for each inch of water added to the tank.
An electric dosing pump draws the dilute chlorine solution from the storage tank and injects it into the water stream. A flow indicator stops the injector pump when there is no main water line flow.
The chlorine dosage rate is preset at a medium system flow rate. The actual dosage in the water stream will vary depending on the actual flow in the system.
The goal is to have a free chlorine concentration after the chlorine contact tank (sample point #2) of between 0.2 and 2.0 PPM.
With the injector pump set at a medium speed (#4 setting) run the system at a minimal flow rate of 5 gpm. Check the chlorine residual at sample point #2.
Chlorine residual can be checked with test strips such as “Insta-Test” low range test strips (catalog item 2964-G).
Chlorine level should be between 1.5 and 2.0 PPM at sample point #2. This will ensure adequate chlorine concentration even at maximum system flow rates.
Check chlorine residual after the carbon filter (at sample point #3) to ensure chlorine is below
0.05 PPM going in to the water softener.
Adjust chlorine feed pump speed if necessary to achieve proper chlorine level.
See equipment manual for specific operating and adjustment procedures for chlorine feed pump system.
Safety Program
The operation and maintenance of water systems can be hazardous. The combination of chemical use, electrical components create several potentially dangerous situations for a water supply system operator. This Safety Program is designed to identify hazards and provide procedures for mitigating the risks associated with the hazards.
Safety is an attitude of utilizing the proper equipment, training, and necessary manpower to effectively perform the required tasks and allowing adequate time to do so without rushing or diverting focus of the task at hand.
The purpose of the Ash Meadows PWS safety program is to prevent accidents. Its success relies on the participation of everyone involved. Critical aspects of this safety program include:
Identification of hazards and correction of unsafe conditions.
Awareness and avoidance of unsafe acts
Hazardous conditions that may be encountered in Ash Meadows PWS include:
Electrical Hazards Chemical Hazards Pressure Vessels Slips, trips and falls
Electrical Safety
The bottom line for electrical safety is that only individuals knowledgeable in electrical systems and safety should be working on electrical equipment. Ash Meadows management & maintenance personnel are responsible for the continuous operation of the water system and when electrical repairs exceed their experience, a licensed electrician shall be used for repairs made to the water systems electrical equipment. All maintenance of equipment and circuits shall be performed in a “de-energized” state. Use proper lock-out & tag-out procedures when working with hazardous energy sources.
Chemical Safety
Material Safety Data Sheets (MSDS) are provided with all hazardous chemicals purchased and must be made available to all individuals potentially exposed to the chemicals through handling or routine operations. These sheets describe specific materials compatibility; handling precautions, spill responses and hazardous properties of the chemical. Whenever working with chemicals, including the disinfection chemicals, the managers wear safety goggles.
Eye protection and gloves shall be worn when handling chlorine chemicals (See MSDS).
A safety eye wash is installed in the treatment building in case of chlorine chemical splash.
Confined Space (Permit Required or Non Permit Required)
There are no confined spaces for this system, however, it is prudent to recognize the tight spaces for which operations and maintenance are performed and the dangers that can arise from such conditions. Room to handle materials and maneuver to adjust or maintain equipment is quite limited in the Treatment Building.
The only individuals with access to the Treatment Building shall be Ash Meadows management and maintenance personnel.
Pressure Vessels There are four pressurized tanks in the treatment plant, these are the contact tank, the carbon filter, the water softener, and the arsenic filter. Each of these tanks are normally operating at system pressures between 60 and 100 psi. Prior to performing any maintenance on these tanks ensure the tank has been isolated from the system and that pressure has been released.
The carbon fiber used to reinforce the pressure tanks is susceptible to loss of strength if fibers are cut or crushed. If a tank has visible damaged from a collision or some other event do not place the tank back into service, replace it immediately.
Slips, Trips, & Falls
The best method to prevent slips and trips is to maintain good housekeeping practices.
Keep the Treatment Building free of clutter. Put all tools away. Do not store sodium hypochlorite bottles on the floor or on equipment. A safe storage area is in a chemical cabinet or away from foot traffic in a secondary container.
System Appurtenances The system includes (in the order of flow) one well, two pumps, two pump drives, a totalizing water meter, chlorination system, carbon filter, water softener, 3 way diversion valve, flow meters, arsenic filter, a steel pressure tank and pressure transducers located in the pump house. A 4” C900 PVC main line with isolation valves and an end of line blow-off valve. There are no fire hydrants or fire systems directly connected to this system.
System Operation & Maintenance Schedule
Daily
- Confirm adequate water flow and pressure.
- Confirm no fault alarms at treatment building
Weekly
- Check sodium hypochlorite tank level and recharge as necessary.
- Check sodium hypochlorite level at Sample #2 (target .02 PPM.)
- Check Filters for proper valve operation.
- Check water pressure at Station #1 through #5. Readings should be the same at static condition and may vary up to 30 PSI while running if filters are nearing the backwash stage.
- Record and log all of the above.
Monthly
- Document monthly water usage.
- Record and log.
Quarterly
- Collect Total Coliform bacteria samples and review results. Submit to BSDW if required.
- Check the sodium hypochlorite supply and its date. Do not use sodium hypochlorite that is over three months old. Replace as necessary.
Annually
- Collect samples for other contaminants according to NDEP ‘Attachment A’.
- Manipulate all valves through the full range of operation, returning to normal operating positions.
- Perform major housekeeping and painting as required.
- Review O&M Manual, Cross-Connection Control Plan, and Emergency Response Plan and update as needed.
- Have system drawings updated to include any changes made during the year.
- Replace sodium hypochlorite tubing.
- Test all backflow prevention assemblies (or review user’s tests).
- Record all activities.
Periodically
- Flush the entire water system if it is noted that too much sand is entering the storage tank & distribution system from the well.
- Meter calibration and meter replacement.
- Residential meters should be replaced in a ten year cycle under good (no sand) conditions. Large/commercial meter calibration should take place every 2 years.
Emergency:
- To restart the system see pump starting procedures outlined above.
(Also See Emergency Operations Plan in Appendix.).
Customer or User Complaints Every employee of the Ash Meadows PWS will be responsible for customer relations and for positive customer communication. Everything that an employee does from meter reading, installing pipelines, repairing lines, flushing, or answering consumer complaints has an effect on the public’s image of the utility. The employee is in the front lines of public relations. Therefore, the employee must be aware and take into account the responsibilities of public relations.
This added responsibility of representing our utility to the public means the employee must be careful to present a neat, efficient, knowledgeable, and cooperative image.
All employees working for the utility should have a basic knowledge of the system facilities and the system’s operation.
All water quality, pressure, or quantity complaints will be treated as legitimate and investigated as soon as possible. Questions will be asked as necessary to make sure the problem is understood. Every effort will be made to give the customer an immediate, clear and accurate answer to the problem. If the answer is not known, it will be referred to the proper person in the organization. Always inform the person with the problem what will be done to correct the situation or indicate when someone will call back with additional information. After the problem is corrected, a follow-up contact will be made to insure all is satisfactory and appropriate.
Valve Exercise Program System shut-off valves are provided primarily to isolate small areas for emergency maintenance, or to provide water from one zone to another during outages. Left to emergency-only operation, these valves would suffer from lack of operation rather than wear. A comprehensive program of inspection, exercising and maintenance of valves on a regular basis can aid in avoiding serious problems when the need to use a valve arises.
Routine valve inspections are conducted annually and the following tasks performed should isolation valves be installed:
1. Verify the accuracy of the location of the valves on the system map.
2. Clean out the valve box.
3. Inspect valve stems and nut for damage or leakage.
4. Close the valve fully, if possible, and record the number of turns to the fully closed position.
5. Reopen the valve to reestablish system flows.
6. Note any problems.
7. Keep the valve log up to date. Valves generally turn 3 times the diameter of the pipe +/- 3 turns
Exercising (opening and closing a valve) will be done at the same time the valve inspection is made. The valve stem should never be left in a fully open or closed position.
After fully opening or closing a valve, back off the stem by one turn. Conditions will determine how often the valves should be exercised, but all valves will be exercised at least once a year. Any valves that do not completely close or open should be replaced.
Valves that leak around the stem will be repacked or replaced.
A timely maintenance program will be initiated to correct any problems discovered during this inspection and exercising process.
NOTE: Always operate valves slowly to prevent damaging pipes and valves. Always return valves to the normal operating position, to avoid damage to equipment or water outages to parts of the system.
Preventive Maintenance
1. Perform interior maintenance and cleaning of the pump area, pressure tank and well areas as needed.
2. Exercise all valves annually including blow off of main line.
3. Replace bad sections of pipe as necessary.
4. Follow maintenance requirements of Cross Connection and Backflow
Prevention Plan.
Emergency Response Plan System: Ash Meadows Headquarters PWS PWS ID Number: TBD Number of connections: 3 Population served: 20-30 transient
Introduction A disaster may occur at any time without warning. The Governor of Nevada or President of the United States may declare a state of emergency. A declaration of emergency will allow state and federal agencies to begin emergency relief procedures, however, these resources may not be available in large quantities for the first seventy-two hours, and may be insufficient to meet the needs of the Ash Meadows PWS. This Emergency Response Plan has been developed to ensure that drinking water will be available during the first seventy-two hours after an emergency has been declared.
Purpose The purpose of this plan is to establish guidelines for the Ash Meadows PWS to follow in the event of any emergency situation or disaster causing a prolonged interruption of water service.
The word disaster is defined for the purpose of this manual, as an event that exceeds the capability of the Ash Meadows PWS to handle that event. Three levels of emergency conditions may occur:
Normal: Everything is fine and the entity can handle the situation.
Alert: Minor emergency—something needs to be repaired but the entity can handle the situation without outside help.
Disaster: The entity can’t handle the situation and will need assistance from outside sources.
Ash Meadows has a good system map which is critical in the event of a disaster.
While it is likely that the Ash Meadows PWS will be inoperative in the event of a disaster, provisions for the delivery of safe water units will need to be considered. Portable toilets should also be considered.
Emergency Phone Numbers Ash Meadows Manager
Office
(775) 372-5435 Ash Meadows Owner N/A Distribution Operators N/A
Nye County Health District 24-hours 775-328-2400 State Bureau of Safe Drinking Water, NDEP (775) 687-9521
State Bureau of Safe Drinking Water, NDEP After-hours Emergency
(888) 331-6337; (775) 687-9485
Law Enforcement (Emergency Only) 24-hours 911
NDEP Spill Reporting Hotline 1-888-331-6337 National Response Center 1-800-424-8802
Bureau of Corrective Actions (questions regarding spills) 775-687-9368
SCADA Contact N/A
Additional numbers
Nye County Sheriff’s Office Non-Emergency (775) 751-7000 Fire Department – Amargosa VFD (775) 372-1111
Fire Department – Pahrump (775) 727-5658 Electric Utility Company
Valley Electric Association
(775) 727-5312 (24-hr Outage/ Emergencies)
(800) 742-3330 (Toll Free);
(775) 727-5312 (Customer Service)
Electric LaHaye Electric
(775) 727-5238
Pump & Well Service Great Basin Drilling
(775) 727-4462
Pipe and Fittings H&M Pipe & Supply
(775) 727-1599
Underground Service Alert (aka Call Before You Dig)
(800) 227-2600
Newspaper for Public Notification TV Station for Public Notification
Radio Station for Public Notification
Plumber
General Emergency Response Actions Federal Substitution
If an emergency arises during business hours, the owner and managers should already be aware of the situation.
If it is an emergency situation that can be dealt with in a relatively short period of time, no further action will need to be taken. If it is an emergency that will affect water service for a long period of time, the Ash Meadows PWS will need to provide for potable water. If the emergency situation requires outside assistance, the managers will contact the appropriate entities.
Maximum Contaminant Level Exceedance It is the operator’s responsibility to review results of analyses whenever they are received from the lab. The results should be compared to the standards.
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