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Home My WebLink AboutDDW-2024-010551Water Hauling Proposal – Plan Approval Template INSTRUCTIONS Send the completed Plan Approval Template to ddwpnf@utah.gov Definitions: PWS refers to the Public Water System requesting approval to receive the hauled water. Supply PWS refers to the Public Water System supplying hauled water. Water Hauler refers to the entity transporting the hauled water. WATER HAULING PROPOSAL INFORMATION Project Title: DDW File No.: PWS Name: PWS No.: Reason for water hauling: Hauling start date: Hauling end date: How the hauled water be used (drinking, showering, cooking, food-washing, etc.): Supply PWS Name: Supply PWS Number: Supply PWS Facility Number(s): Location or component that will supply the water (water storage tank, hydrant, etc.): Name and contact information of anticipated Water Hauler: Water Hauler Type: Contractor PWS Other Describe the tanks, vehicles, and equipment that will be used to transport hauled water: Quantity of water per haul (gallons): Haul frequency (twice daily, twice weekly, etc.): Disinfectant: Disinfectant meets ANSI/NSF Standard 60: Yes No Frequency and method of cleaning water hauling equipment: Frequency and method of disinfecting water hauling equipment: Frequency and method of chlorine residual monitoring of hauled water: Acknowledgements I understand the Water Hauling Report must be submitted to ddwreports@utah.gov monthly, no later than the 10th of the following month (e.g. the report for January must be submitted by February 10th). I understand any changes in the approved Water Hauling Proposal must be submitted to DDW I understand approvals or permits from the local authority or county may be necessary before beginning water hauling SUBMITTED BY Name: Organization: Title: Email: Phone: Signature: Date: REVIEWED BY DDW Permitting Engineer Name: Date: Email: Phone: Permit start date: Permit end date: Comments: APPROVED BY DDW Permitting Manager Name: Signature: Date: SYSTEM APPROVAL 13625 RED WASH UTAH24020 NO FEASABLE WATER SOURCE AVAILABLE BEEN HAULING FOR DECADES N/A THE WATER HAULED IS USED FOR RESTROOM FACILITIES AND HAND WASHING ASHLEY VALLEY WATER & SEWER UTAH24013 DS 001 1753 E. 1500 S.VERNAL UT. 84078 K BAR A WELDING AND CONSTRUCTION KENNY ANDREWS 435-790-3406 WATER WILL BE HAULED BY SEMI TRUCK 3,600 CHLORINE X X CONTINUOUS WATER HAULING AND MONTHLY BACTERIA TESTING X X X SCOTT ATWOOD MIDDLE FORK ENERGY UINTA/KODA HSE MANAGER scott.atwood@kodares.com 435-828-0835 08-26-2024 CONTINUOUS WATER HAULING AND MONTHLY BACTERIA TESTING UPON LOADING AND UNLOADING WITH HATCH DR300 APPROVED TESTER Twice monthly Nathan Hall nhall@utah.gov September 1, 2024 August 29, 2024 435-630-3852 N/A This is approval for permanent ongoing water hauling Utah Department of Environmental Quality Division of Drinking Water GUIDANCE FOR HAULING DRINKING WATER Original: June 29, 1979 Revised: September 4, 2014; July 28, 2015; September 27, 2019 Current Revision: August 30, 2024 Contents 1. Statement of Intent / Use of this Guidance .................................................................................................... 1 2. Proposal to Haul Water - Obtaining DDW Approval ....................................................................................... 1 3. Use of an Approved Source to Supply Hauled Water ..................................................................................... 1 4. Water Hauling Equipment............................................................................................................................... 1 4.a. Tanks or Vessels ....................................................................................................................................... 2 4.b. Hoses ........................................................................................................................................................ 2 4.c. Pumps ....................................................................................................................................................... 2 5. Cleaning Water Hauling Equipment Prior to Disinfection .............................................................................. 2 5.a. Cleaning Water Hauling Tanks ................................................................................................................. 3 5.b. Cleaning Hoses and Pumps ...................................................................................................................... 3 6. Disinfection of Water Hauling Equipment ...................................................................................................... 3 6.a. Using Chlorine as a Disinfectant ............................................................................................................... 3 6.b. Disinfection of Water Hauling Tanks ....................................................................................................... 4 6.c. Disinfection of Hoses and Pumps ............................................................................................................. 5 7. Water Hauling Procedure ............................................................................................................................... 6 7.a. Loading the Water .................................................................................................................................... 6 7.b. Transporting the Water ........................................................................................................................... 7 7.c. Unloading the Water ................................................................................................................................ 7 8. Water Hauling Frequency – When to Repeat Cleaning and Disinfection ....................................................... 8 9. Free Chlorine Residual Monitoring and Reporting ......................................................................................... 8 Appendices Appendix A Brief Summary of Water Hauling Steps Appendix B Water Hauling Proposal Appendix C Mixing Chlorine Solutions Using Liquid Sodium Hypochlorite Appendix D Providing an Air Gap Appendix E Water Hauling Report DDW-Eng-0003 Page 1 9/27/2019 1. Statement of Intent / Use of this Guidance This guidance provides basic information about temporary water hauling by Public Water Systems during emergencies. Water hauling involves collecting drinking water in a portable tank or vessel from an approved Public Water System and source and delivering it to another Public Water System or directly to the public. A Public Water System that needs to haul water must assure that the water meets the same state and federal drinking water standards that normally apply to public drinking water. Hauling drinking water during an emergency must be done in a manner that protects public health. Each step in the water hauling process has the potential to introduce contaminants to the drinking water, which could make it unfit for human consumption. This guidance provides information intended to limit the potential for water contamination during water hauling. 2. Proposal to Haul Water - Obtaining DDW Approval The Director of the Division of Drinking Water (Director) has the authority to regulate the use of hauled water by Public Water Systems in Utah through UAC R309-550-10, Water Hauling. Public Water Systems may only use water hauling during emergencies or under the specific conditions described in UAC R309-550-10. Community Water Systems that need to temporarily haul water during an emergency must obtain the Director’s approval prior to the start of water hauling and submit a water hauling proposal either before or immediately after the start of water hauling. Non-community Water Systems that have no other option but to haul water are required to prepare a proposal and obtain the Director’s approval prior to the start of water hauling. In either case, a Public Water System may complete the Water Hauling Proposal form, found in Appendix B, and submit it to the Director for approval as a proposal to haul water or for review as an after-the-fact description of its emergency water hauling process. 3. Use of an Approved Source to Supply Hauled Water The source providing hauled water must be an approved drinking water source from a Public Water System rated as approved by the Division of Drinking Water. The Public Water System must be in compliance with drinking water Maximum Contaminant Levels and monitoring requirements. 4. Water Hauling Equipment All equipment, including tanks, gaskets, hoses, fittings, pumps, etc., that may come into contact with the hauled water should be comparable to equipment meeting the standards of NSF/ANSI 61 - Drinking Water System Components – Health Effects. Prior to selecting used equipment for water DDW-Eng-0003 Page 2 9/27/2019 hauling, a Public Water System must determine how the equipment was used; if the previous use of the equipment is unknown, it may not be used to haul water. The equipment should have been previously used solely to transport, store, or pump drinking water. In an emergency, the Director may approve the use of equipment that was previously used to transport, store, or pump food-grade liquids, such as juice, pasteurized milk, wine, spirits, or vinegar, provided that the rigorous cleaning and disinfection procedures described below are followed and that the Public Water System demonstrates that no other equipment is available. 4.a. Tanks or Vessels The preferred method of water hauling is with tanks or vessels dedicated solely to drinking water. The tank should be constructed of a material suitable for holding drinking water and be comparable to equipment meeting NSF/ANSI 61 - Drinking Water System Components – Health Effects.1 A tank used to haul drinking water must be watertight, be in good condition, be easy to clean, and have no interior features that can hold dirt or residue. It must have a drain or an outlet valve and be constructed to drain completely. If vented, the vent must be downturned and covered with No. 14, or finer, stainless-steel mesh screen. Tank openings, including hatches, must extend above the exterior tank surface and be sealed with watertight, food-grade gaskets with overlapping covers. The covers on tank openings should have security locks, which are locked when not in use. The covers should be secured to the tank with chains, cables, or hinges. 4.b. Hoses Hoses used to load and unload hauled water should be comparable to equipment meeting NSF/ANSI 61 standards and be made of materials that impart no taste or odor to the water. Hoses should be kept off the ground at all times. They either should have end-caps or be stored in an enclosure for protection from contamination when not in use or during transportation. Hose end-caps should be secured with chains or cables. Garden hoses, rubber hoses, canvas fire hoses, and hoses previously used for non-drinking water should not be used. 4.c. Pumps Pumps used to transfer hauled water should be new or have been previously used only to pump drinking water. Pump lubricants should meet NSF/ANSI 60 – Drinking Water Treatment Chemicals – Health Effects. Pumps previously used to pump food-grade liquids may only be used after rigorous cleaning and disinfection with the Director’s approval. 5. Cleaning Water Hauling Equipment Prior to Disinfection 1 “Planning for an Emergency Drinking Water Supply,” EPA 600/R-11/054 (Washington, DC: Office of Research and Development, US EPA, 2011), p. 11. DDW-Eng-0003 Page 3 9/27/2019 Dirt or debris in the water hauling equipment can interfere with disinfection. Heavy particles may contain bacteria that even concentrated chlorine may not be able to contact and kill.2 Therefore, equipment must be clean before final disinfection by chlorination. Water hauling equipment that is new; shows evidence of dust, dirt, debris, or other foreign matter; or has been previously used to transport, store, or pump food-grade liquids must be thoroughly cleaned prior to being disinfected as described below. 5.a. Cleaning Water Hauling Tanks Prior to cleaning, drain the tank of residual liquid. Clean the tank interior with a mixture of detergent and drinking water using a clean brush or high-pressure water jet3 if necessary. Warm or hot water may be used if available. No solvents or toxic cleaners may be used. Properly dispose of the water and detergent mixture as it drains from the tank. When the tank is clean, rinse it using clean drinking water until the water draining from the tank is detergent-free. A high-pressure water jet may be used. Drain the water from the tank and properly dispose of the drained water. The tank is now ready to be disinfected according to the procedure below. 5.b. Cleaning Hoses and Pumps The interior surfaces of hoses, pumps, and other equipment that will come into contact with the hauled water must be cleaned of dirt, debris, or residue. Prepare a mixture of detergent and drinking water, flush the hoses and pumps with the mixture, and then rinse the equipment with clean, drinking water until the water runs detergent-free. The hoses and pumps are now ready to be disinfected according to the procedure below. 6. Disinfection of Water Hauling Equipment The interior surfaces of tanks and equipment must be disinfected with chlorine according to one of the methods described below prior to coming into contact with the drinking water that will be collected, transported, and delivered during the water hauling process. The following disinfection procedure applies to all water hauling equipment, including equipment that requires preliminary cleaning according to the above procedure and equipment regularly used to haul water. 6.a. Using Chlorine as a Disinfectant A chlorine solution must be used to disinfect interior surfaces of the water hauling equipment, 2 “Disinfecting Water Mains,” ANSI/AWWA C651-14 (Denver, CO: American Water Works Association, 2014), p. 12. 3 “Cleaning and Disinfecting Water Storage Tanks and Tankers,” Technical Notes on Drinking-Water, Sanitation and Hygiene in Emergencies, Technical Note No. 3 (Leicestershire, UK: Water Engineering and Development Centre, World Health Organization, 2011), p. 3.1. DDW-Eng-0003 Page 4 9/27/2019 including tanks, hoses, pumps, etc. Trained Public Water System personnel may use any of the forms of chlorine described in ANSI/AWWA C652-11, Disinfection of Water Storage Facilities, to prepare the required chlorine solutions for disinfection. Water hauling operations that choose to prepare chlorine solutions using liquid sodium hypochlorite for disinfection should assure that the liquid hypochlorite is certified to meet NSF/ANSI 60 – Drinking Water Treatment Chemicals – Health Effects. Commercially manufactured sodium hypochlorite is available from water treatment equipment suppliers. Regular liquid bleach, which contains sodium hypochlorite, may only be used if it carries the NSF/ANSI 60 certification. Typical household liquid bleaches that lack NSF/ANSI 60 certification may not be used as a disinfectant for drinking water or water hauling equipment. Liquid sodium hypochlorite comes in various strengths ranging from approximately 5% to 15% available chlorine.4 The strength and age of the sodium hypochlorite must be taken into consideration when preparing the solution to be used for disinfection. Tables in Appendix C show how to make different concentrations of chlorine disinfectant by adding liquid sodium hypochlorite to treated drinking water. Because liquid sodium hypochlorite loses 2 to 4 percent of its available chlorine content per month when stored at room temperature, the maximum recommended shelf life is 60 to 90 days.5 Sodium hypochlorite is corrosive and should be handled with care. Protective equipment, such as goggles and rubber gloves and aprons, should be worn when handling sodium hypochlorite solutions.6 6.b. Disinfection of Water Hauling Tanks Tanks can be disinfected by one of the following methods: Method 1: To disinfect a tank by full contact, fill the tank with drinking water containing sufficient chlorine that will provide a free chlorine residual of 50 mg/L. Seal the tank and let it stand undisturbed for 6 hours.7 If using liquid sodium hypochlorite to disinfect a tank by Method 1, determine the volume of water needed to fill the tank. Calculate the amount of liquid sodium hypochlorite needed to be added to that volume of water to provide a free chlorine residual of at least 50 mg/L (see tables 4 “Disinfection of Water Storage Facilities,” ANSI/AWWA C652-11 (American Water Works Association, 2011), p. 5. 5 Introduction to Water Treatment: Principles and Practices of Water Supply Operations, Volume 2, American Water Works Association (Denver, CO: American Water Works Association, 1984), p. 296. 6 Water Chlorination Principles and Practices, AWWA Manual M20, American Water Works Association (Denver, CO: American Water Works Association, 2006), p. 87. 7 Water Chlorination Principles and Practices, AWWA Manual M20, p. 37. DDW-Eng-0003 Page 5 9/27/2019 in Appendix C). Begin filling the tank with water while gradually adding the liquid sodium hypochlorite. To achieve adequate mixing, add the liquid sodium hypochlorite and water proportionally to maintain a uniform chlorine concentration while filling the tank. Seal the tank when full, and let it stand undisturbed for 6 hours. Method 2: To disinfect a tank by spraying or painting, prepare a 200 mg/L solution of chlorinated water, spray or paint the interior tank surface with the solution making sure to wet the entire surface. Continue to re-wet the surface as necessary to keep it in contact with the solution for a minimum of 30 minutes.8 If using liquid sodium hypochlorite to disinfect a tank by Method 2, determine the volume of water needed to spray or paint the interior tank surface and keep it wet by re-application. Calculate the amount of liquid sodium hypochlorite needed to be added to that volume of water to provide an available chlorine concentration of at least 200 mg/L (see tables in Appendix C). Mix the water and chlorine together in a clean make-up tank and apply it by spraying or painting the interior tank surface as necessary to keep it wetted for a minimum of 30 minutes. (Avoid breathing the mist.) After the minimum chlorine contact time has been met, using one of the above disinfection methods, drain the chlorine solution from the tank and dispose of it properly. Thoroughly rinse the tank with drinking water, drain, and properly dispose of the rinse water. The tank is now ready to be filled with drinking water. CAUTION: Do not discharge highly chlorinated water on to the ground or to surface water (such as a stream, pond, lake, or wetlands) where it can kill aquatic life, wildlife, and vegetation. Contact the Utah Division of Water Quality to determine if the water may be discharged and what treatment is required. The chlorine solution may be discharged to a sanitary sewer only after obtaining permission from the sewer system owner. 6.c. Disinfection of Hoses and Pumps The interior surfaces of hoses and pumps that will come into contact with the treated drinking water must also be disinfected prior to use. Hoses may be disinfected by full contact with a concentrated chlorine solution. If using liquid sodium hypochlorite, calculate the amount needed to be added to a sufficient volume of water to fill the hoses and to achieve a free residual chlorine of 50 mg/L (see tables in Appendix C). After capping one end, fill the hose with the chlorinated water, cap the open end, and let the hose stand undisturbed for 6 hours. At the end of the 6-hour contact time, drain the chlorine solution, flush with 8 “Disinfection of Water Storage Facilities,” ANSI/AWWA C652-11, p. 7. DDW-Eng-0003 Page 6 9/27/2019 clean water, drain, and cap the hose to prevent contamination.9 A stand-alone pump can be disinfected along with the hoses by filling them with water containing an available chlorine concentration of 50 mg/L and letting them stand undisturbed for 6 hours. At the end of the 6-hour contact time, drain the chlorine solution, flush with clean water, drain, and cap the hoses and pump to prevent contamination. For tanks equipped with pumps, the hoses and pumps may be disinfected simultaneously with the tank by circulating water containing an available chlorine concentration of 50 mg/L drawn by the pump from the tank and returned through the hoses. After setting up a closed loop, recirculate the chlorinated water for one hour,10 let the tank, hoses, and pump stand undisturbed for another 5 hours (total contact time is 6 hours). Flush the hoses, pump, and tank with clean water, drain, and cap them to prevent contamination. Spraying or painting with a highly concentrated chlorine solution may be inappropriate for disinfecting hoses and pumps. Pump materials may not be suitable for prolonged exposure to chlorine and sodium hypochlorite.11 7. Water Hauling Procedure After completing cleaning and disinfection, the equipment is ready for water hauling. Care must be taken not to contaminate the water or disinfected equipment during collection, loading, transport, and unloading. All equipment openings must be closed when not in use. Each batch of water must be tested for free chlorine residual when loading and unloading. 7.a. Loading the Water Fill the disinfected water hauling tank with treated drinking water from an approved Public Water System. The tank must be filled in a manner that prevents the backflow of water from the hauling tank to the water source. This may be accomplished by employing a double check assembly when a direct connection from the water source to the tank is used or by maintaining an air gap (see Appendix D) between the hose drawing water from the source and the tank receiving the water. Hoses must be kept off the ground during filling to avoid contamination of the hauling tank. When filling a tank using an air gap, care should be taken to prevent wind-born contaminants from entering the tank. 9 Adapted from the procedure for disinfecting tanks and reservoirs found in Water Chlorination Principles and Practices, AWWA Manual M20, p. 37. 10 “Cleaning and Disinfecting Water Storage Tanks and Tankers,” p. 3.3. 11 “Horizontal and Vertical Line-Shaft Pumps,” ANSI/AWWA E103-15 (Denver, CO: American Water Works Association, 2015), pp. xi-xii. DDW-Eng-0003 Page 7 9/27/2019 To keep the water safe for drinking, during transportation it should have a minimum free chlorine residual of 1 mg/L, but no greater than 4 mg/L, when loaded (see tables in Appendix C). Measure and record the free chlorine residual of the water in the tank prior to closing the filling port. If the concentration is less than 1 mg/L, add chlorine to the tank in the proper proportion to achieve the required concentration. Close the port through which the tank was filled and properly store the hoses. 7.b. Transporting the Water After loading the water hauling tank, the water should be delivered without delay. The chlorine concentration of the water in the tank will decline over time. Water held in a water hauling tank must be discarded if a free chlorine residual is not detected at the time of unloading.12 If a rapid decline in free chlorine residual occurs during transportation, additional chlorine should be added to provide a free chlorine residual of 1 mg/L but no greater than 4 mg/L. 7.c. Unloading the Water Before delivering the hauled water, the water storage tank and distribution system that will receive the water must have remained free of contamination while they have stood unused. If the water system has completely run dry or pressure in the distribution system has fallen below 20 psi, the distribution system must be disinfected as required by ANSI/AWWA C651-14, Disinfecting Water Mains, before the hauled water can be delivered. If the sanitary condition of the water storage tank has been compromised, it must first be disinfected to prevent contamination of the delivered water when unloaded. Follow the procedures of ANSI/AWWA C652-11, Disinfection of Water Storage Facilities, to clean and disinfect the water storage tank if needed. If hauled water is being unloaded into a temporary water storage tank, that tank must be certified to meet ANSI/NSF 61 - Drinking Water System Components – Health Effects and be cleaned and disinfected as described above. Prior to unloading, the free chlorine residual of the water in the hauling tank must be tested and recorded. ● If the water contains a free chlorine residual of at least 1 mg/L, the water can be unloaded and used immediately. ● If a free chlorine residual is not detected, the water must be discarded and the cause of the chlorine residual depletion should be investigated. ● If a free chlorine residual is detected but is less than 1 mg/L, chlorine should be added to 12 See discussion of disinfectant residual in the distribution system in Federal Register/Vol. 54, No. 124/Thursday, June 29, 1989/Rules and Regulations, p. 27495. DDW-Eng-0003 Page 8 9/27/2019 provide a minimum of 1 mg/L but no greater than 4 mg/L. After unloading the water, a free chlorine residual of at least 1 mg/L must be present after 30 minutes before distributing the water. When unloading the water, hoses should be kept off the ground and not be submerged in the tank receiving the water. After unloading the water, the ports of both tanks should be closed to protect them from contamination and the hoses capped and properly stored. 8. Water Hauling Frequency – When to Repeat Cleaning and Disinfection The water hauling equipment does not have to be re-cleaned and re-disinfected after the initial delivery provided that the above procedures were followed and the equipment is used daily to deliver hauled water. Simply follow the water hauling procedures to maintain the sanitary condition of the equipment and test each load to assure the presence of a free chlorine residual as specified above. If water hauling is done intermittently and the equipment is sealed to prevent contamination, water delivery may resume after rinsing the equipment with chlorinated drinking water. If the equipment has been open to the atmosphere or shows evidence of dust, dirt, debris, or foreign matter, it must be cleaned and disinfected according to the above procedures. If the equipment is used to load, store, or transport food-grade liquids after being cleaned and disinfected for water hauling, a new proposal for water hauling must be prepared and submitted to the Director and all of the above procedures completed once again. 9. Free Chlorine Residual Monitoring and Reporting 9.a. Chlorine Residual Testing of Hauled Water The free chlorine residual must be measured twice for every load of water hauled. The free chlorine residual in the water hauling tank must be measured at the time loading and unloading for each load of hauled water . The measured free chlorine residual must be recorded, be provided to the Division of Drinking Water monthly, and maintained by the Public Water System receiving the hauled water (use the Water Hauling Report in Appendix E). If a free chlorine residual is not detected at the time of delivery, the water must be discarded. 9.b. Free Chlorine Residual Reporting The Water Hauling Report (using the template in Appendix E) must be submitted monthly as an attachment to an email to DDWReports@utah.gov. Reports must be submitted no later than the 10th of the following month (e.g. the report for January must be submitted by no later than February DDW-Eng-0003 Page 9 9/27/2019 10th). Free chlorine residual monitoring and reporting are summarized below in Table 1. DDW-Eng-0003 Page 10 9/27/2019 Table 1. Summary of Free Chlorine Residual Monitoring for Water Hauling 1 Record free chlorine residual results 2 Retain free chlorine residual results for review by DDW upon request 3 When loading water: measure free chlorine residual for each load (target ≥1 ppm and <4ppm); add chlorine if needed 4 Prior to unloading hauled water: measure free chlorine residual for each load (target ≥1 ppm and <4ppm) 5 Unloading ─ if free chlorine residual is present and holds near 1 ppm: deliver water 6 Unloading ─ if free chlorine residual is present but diminished during transportation: add chlorine to reach 1 ppm before unloading 7 Unloading ─ if free chlorine residual is absent or has diminished significantly: discard water Appendix A Brief Summary of Water Hauling Steps 1. Submit a Water Hauling Proposal Notify the Director of the Division of Drinking Water of the need to haul water. Complete the Water Hauling Proposal form found in Appendix B and submit it for review. 2. Select the Equipment The preferred method of selecting equipment is to find a commercial water hauler or Public Water System with the experience and equipment to safely deliver drinking water during an emergency. Alternately, choose equipment that has been used exclusively for drinking water, or purchase new equipment comparable to equipment certified to meet NSF/ANSI 61. 3. Clean the Equipment If the equipment is new or shows evidence of dust, dirt, debris, or foreign matter, clean the tank, hoses, and pump with a solution of clean water and detergent. Drain the wash water and rinse with clean water until it runs clear of detergent. Drain the rinse water from the equipment and close all openings to protect the equipment from contamination. 4. Disinfect the Equipment Use one of the following methods to disinfect the tank. Method 1: To disinfect a tank by full contact, fill the tank with drinking water containing sufficient chlorine that will provide a free chlorine residual of 50 mg/L. Seal the tank and let it stand undisturbed for 6 hours. Method 2: Prepare a 200 mg/L solution of chlorinated water and spray or paint the entire interior tank surface with the solution. Continue to re-wet the surface as necessary to keep it in contact with the solution for a minimum of 30 minutes. Drain the tank and properly dispose of the chlorinated water. Disinfect the hoses and pump by filling them with water containing an available chlorine concentration of 50 mg/L and let them stand undisturbed for 6 hours. At the end of the 6-hour contact time, drain the chlorine solution, flush with clean water, drain, and cap the hoses and pump to prevent contamination. 5. Fill the Tank Fill the water hauling tank through a water filling station or using clean disinfected hoses with drinking water from an approved Public Water System. Add chlorine to provide a free chlorine residual of 1 mg/L. 6. Deliver the Water At the water delivery point, test the water to confirm a minimum free chlorine residual of 1 mg/L. Transfer the water from the water hauling tank to the Public Water System tank receiving the water. Keep hoses off the ground. Do not submerge the hose in the water in the tank receiving it. After unloading, close the ports of both tanks. Cap and properly store the hoses. 7. Document Water Hauling Process Use the Water Hauling Report in Appendix E to document the water hauling process. Appendix A Summary of Water Hauling and Monitoring Requirements Step Chlorine Residual Monitoring Other Requirements 1. Obtain DDW Approval N/A ● Complete Water Hauling Proposal ● Submit proposal to Director 2. Select Equipment N/A ● New equipment; or ● Used equipment used only for drinking water 3. Clean Equipment N/A ● Clean with water & detergent ● Drain wash water ● Rinse with drinking water ● Drain rinse water ● Close all openings 4. Disinfect Equipment N/A ● Add free chlorine 50 mg/L for 6 hrs (tanks, hoses, pumps); or ● Add free chlorine 200 mg/L for 30 min (tanks only) 5. Fill Tank ● Every Load – Test water to confirm ≥1 mg/L free chlorine residual at loading point ● Fill hauling tank from approved PWS ● If needed, add chlorine to reach min. 1 mg/L free chlorine residual (4 mg/L max.) 6. Deliver Water ● Every Load – Test water to confirm free chlorine residual presence at delivery point ● Confirm free chlorine residual ● Transfer water to receiving tank ● Keep hose off the ground ● Do not submerge hose in tank receiving water ● Close all tank ports after unloading ● Cap and store hoses 7. Document Process N/A Complete Water Hauling Report Appendix B Water Hauling Proposal Download the fillable Water Hauling Proposal form at https://deq.utah.gov/drinking-water/water-hauling- approval#:~:text=The%20Director%20of%20the%20Division,UAC%20R309%2D550%2D10. Appendix C Mixing Chlorine Solutions Using Liquid Sodium Hypochlorite (5.25% & 12.5%) 5.25% Liquid Sodium Hypochlorite (NSF/ANSI 60 certified) Desired Chlorine Concentration: Amount of 5.25% Liquid Sodium Hypochlorite: Amount of Drinking Water: 1 mg/L* 1 ½ tsp** 100 gallons 1 mg/L ⅓ cup 1,000 gallons 1 mg/L 1 ½ cups 5,000 gallons Desired Chlorine Concentration: Amount of 5.25% Liquid Sodium Hypochlorite: Amount of Drinking Water: 50 mg/L 1 ½ cups 100 gallons 50 mg/L 1 gallon 1,000 gallons 50 mg/L 5 gallons 5,000 gallons Desired Chlorine Concentration: Amount of 5.25% Liquid Sodium Hypochlorite: Amount of Drinking Water: 200 mg/L 6 cups (1 ½ quarts) 100 gallons 200 mg/L 4 gallons 1,000 gallons 200 mg/L 20 gallons 5,000 gallons 12.5% Liquid Sodium Hypochlorite (NSF/ANSI 60 certified) Desired Chlorine Concentration: Amount of 12.5% Liquid Sodium Hypochlorite: Amount of Drinking Water: 1 mg/L ⅗ tsp 100 gallons 1 mg/L 6 tsp 1,000 gallons 1 mg/L ⅗ cups 5,000 gallons Desired Chlorine Concentration: Amount of 12.5% Liquid Sodium Hypochlorite: Amount of Drinking Water: 50 mg/L ⅗ cups 100 gallons 50 mg/L 6 ⅖ cups 1,000 gallons 50 mg/L 2 gallons 5,000 gallons Desired Chlorine Concentration: Amount of 12.5% Liquid Sodium Hypochlorite: Amount of Drinking Water: 200 mg/L 2 ½ cups 100 gallons 200 mg/L 1 ⅗ gallons 1,000 gallons 200 mg/L 8 gallons 5,000 gallons *1 mg/L (milligram per liter) = 1 ppm (part per million) **tsp - teaspoon Note: A chlorine dose calculator is available on the Division of Drinking Water web site. Appendix D Figure 1. Suggested Methods of Providing Air Gap. (Reproduced From 2012 Edition of “Recommended Standards for Water Works”) Appendix E Water Hauling Report Download Water Hauling Report spreadsheet at https://deq.utah.gov/drinking-water/water-hauling- approval#:~:text=The%20Director%20of%20the%20Division,UAC%20R309%2D550%2D10. Selected Bibliography American Water Works Association. Introduction to Water Treatment: Principles and Practices of Water Supply Operations, Volume 2. Denver, CO: American Water Works Association, 1984. American Water Works Association. Water Chlorination Principles and Practices, AWWA Manual M20. Denver, CO: American Water Works Association, 2006. ANSI/AWWA C651-14 “Disinfecting Water Mains.” Denver, CO: American Water Works Association, 2014. ANSI/AWWA C652-11 “Disinfection of Water-Storage Facilities.” Denver, CO: American Water Works Association, 2011. ANSI/AWWA E103-15 “Horizontal and Vertical Line-Shaft Pumps.” Denver, CO: American Water Works Association, 2015. “Cleaning and Disinfecting Water Storage Tanks and Tankers.” Technical Notes on Drinking-Water, Sanitation and Hygiene in Emergencies, Technical Note No. 3. Leicestershire, UK: Water Engineering and Development Centre, World Health Organization, 2011. “Disinfectant Residual in the Distribution System.” Federal Register 54:124 (June 29, 1989) p. 27495. “Planning for an Emergency Drinking Water Supply” EPA 600/R-11/054. Washington, DC: US EPA, Office of Research and Development, 2011. Utah Administrative Code. Water Hauling, R309-550-10. 2015.