Step 1 Step 2 Step 3 Step 4 Process Chemical Type: NSF 60 Certified? UV Filtration Ion exchange Softener Other: Dosage: Chemical Type: NSF 60 Certified? UV Filtration Ion exchange Softener Other: Dosage: Chemical Type: NSF 60 Certified? UV Filtration Ion exchange Softener Other: Dosage: Chemical Type: NSF 60 Certified? UV Filtration Ion exchange Softener Other: Dosage: Objective: Treatment of bacteria, viruses Turbidity removal Hardness removal Taste & odor removal Metals removal Other: Treatment of bacteria, viruses Turbidity removal Hardness removal Taste & odor removal Metals removal Other: Treatment of bacteria, viruses Turbidity removal Hardness removal Taste & odor removal Metals removal Other: Treatment of bacteria, viruses Turbidity removal Hardness removal Taste & odor removal Metals removal Other: Is this process required by EPA? Yes No Yes No Yes No Yes No Location of process? At Well At Treatment Plant At Well At Treatment Plant Other: At Well At Treatment Plant Other: At Well At Treatment Plant Other: Is this process adequate to meet the objective? Yes No Explain: Yes No Explain: Yes No Explain: Yes No Explain: Frequency of use: Permanent Seasonal Emergency Permanent Seasonal Emergency Permanent Seasonal Emergency Other: Permanent Seasonal Emergency Other: Redundant Equipment? Yes No Explain: Yes No Explain: Yes No Explain: Yes No Explain: Backup power? Yes No Explain: Yes No Explain: Yes No Explain: Yes No Explain: Groundwater and Consecutive Systems UV Disinfection Yes No Is a flow meter to monitor/alarm or a flow restrictor valve so the max flow rate is not exceeded? Describe how the system ensures the flow does not exceed max flow rate: Is an intensity sensor and alarm (visible/audible) to indicate low intensity? Is there a UV lamp status alarm (visible/audible) to indicate lamps off? Is there a UV lamp age counter/alarm? Is there an automatic shut-off fail-safe solenoid valve so that water does not flow through the unit without adequate treatment? Are there spare bulbs on hand? How often are the unit cleaned and the bulbs changed? of use Treatment For PWSs with required Point of Use (POU) treatment, ask the operator – Yes No NA
operator certificate or will be required to demonstrate that the operator has achieved the appropriate level of certification. Alternatively, the system could employ a certified contract operator; will be required to show the contractual agreement and the contract operator’s certification level. Information on certified Wyoming contract operators may be found at the following website: . Does exist in any pits? Yes No If so, what is the of the Master meter vault contains standing water from leaking water system (see photo #) The master meter vault at the connection to the [wholesaler] water system contained standing water caused by leaking water system components in the vault. This water could create a potential backflow problem if the system loses pressure and the water is siphoned back into the main. The components must be repaired to halt the leakage. Does exist in any pits? Yes No If so, what is the of the Master vault contains standing water from unknown origin*. (see photo #) The master meter vault at the connection to the [wholesaler] water system contained standing water caused by unknown source(s). water could create a potential backflow problem if the system loses pressure and the water is siphoned back into the main. Since the [consecutive] is responsible for the maintenance of the master meter connection, the [consecutive] must identify the source of the standing water. If the source of the water is leakage from water system
components, these must be repaired according to a schedule that you submit to the EPA. Is a tight cap on the fill port? The water system’s fill port does not have a water tight cap. The cap on the water system’s fill port is not water tight. This could lead to the introduction of into the distribution system. The cap must be repaired or replaced. Does exist in any pits for the is Yes No If so, what is the of the Master vault contains standing water from leaking water system (see photo #) The master meter vault at the connection to the [consecutive] water system contained standing water caused by leaking water system components in the vault. This water could create a potential backflow problem if the system loses pressure and the water is siphoned back into the main. The components must be repaired to halt the leakage. Does exist in any pits for the is Yes No If so, what is the of the Master meter vault contains standing water from unknown origin*. (see photo #) The master vault at the connection to the [consecutive] water system contained standing water caused by unknown source(s). water could create a potential backflow problem if the system loses pressure and the water is siphoned back into the main. Since the [wholesaler] is responsible for the maintenance of the master meter connection, the [wholesaler] must identify the source of the standing water. If the source of the water is leakage from water system
necessary to ensure the structural integrity and reliability of the tank. Are there any in the tank etc)? Storage tank not sealed*. (see photo #) Other than the openings afforded by the #24 mesh screens on the vents and overflows, all openings must be sealed completely to prevent (including carried by insects, rodents, and birds) from entering the water system. [Describe specific openings such as: All openings between the roof and sidewalls must be sealed and watertight. Any openings from antennas, telemetry, and other must be sealed and watertight.] If the tank is more than 10 years old, was it and the last 10 Storage tank not cleaned and inspected within the last 10 years. The tank must be cleaned and inspected. Please see the enclosed Finished Water Storage Tank Checklist for a list of items that must be evaluated during the inspection. Tanks need to be periodically cleaned and inspected to prevent the growth of potentially harmful pathogens in the accumulated sediments and to address construction issues before they require major repairs. Inspections and cleaning may be done by a professional or appropriately
Finished Water Storage Tank Checklist. A copy of inspection results and labeled photographs. The date that any corrective actions needed to address deficiencies with the tank components will be completed. EPA will review the inspection report and may require additional corrective actions. Does the tank have an from the vent? @ No overflow on finished water storage tank. In order to protect the integrity of the tank in the case of control system failure leading to overfilling, the tank must have an overflow that is separate from the vent. Is the for Unknown integrity of storage tank overflow [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank overflow [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is
used). In cold climates, use of a flapper or duckbill valve should be considered to minimize air movement and hence ice formation in the tank. In cold climates, provisions should be considered to prevent the flapper or duckbill from freezing shut. Does the line no less than 12 but no more than 24 the Overflow on finished water storage tank discharges at improper height*. (see photo #) Overflow must be piped to an elevation between 12 and 24 inches above the ground surface and discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the over an inlet plate, or Overflow discharge point on finished water storage tank needed*. (see photo #) Overflow must discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the have an air gap of 3 or more pipe the to any or Overflow on finished water storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain*. (see photo #) No overflow may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the overflow pipe terminates at least three pipe diameters above the ground level at the sewer or storm drain, or over a splash pad. Is the for Unknown integrity of storage tank drain [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank drain [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed. Tank Tank
EPA will review the inspection report and may require additional corrective actions. Does the drain pipe have an air gap of 3 or more pipe the to any or Drain on finished water storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain*. (see photo #) No may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the drain pipe terminates at least three pipe diameters above the ground level at the sewer drain, storm drain, splash pad or engineered rip-rap. Does the tank have a vent from the No vent on finished water storage tank. In order to protect the structural integrity of the tank during changes to tank water levels, and other events affecting the confined air space, the tank must have a vent that is separate from the overflow. Is the vent for Unknown integrity of storage tank air vent [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank air vent [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed. Tank Tank Tank
necessary to ensure the structural integrity and reliability of the tank. Are there any in the tank etc)? Storage tank not sealed*. (see photo #) Other than the openings afforded by the #24 mesh screens on the and overflows, all openings must be sealed completely to prevent (including carried by insects, rodents, and birds) from entering the water system. [Describe specific openings such as: All openings between the roof and sidewalls must be sealed and watertight. Any openings from antennas, telemetry, and other must be sealed and watertight.] If the tank is more than 10 years old, was it and the last 10 Storage tank not cleaned and inspected within the last 10 years. The tank must be cleaned and inspected. Please see the enclosed Finished Water Storage Checklist for a list of items that must be evaluated during the inspection. Tanks need to be periodically cleaned and inspected to prevent the growth of potentially harmful pathogens in the accumulated sediments and to address construction issues before they require major repairs. Inspections and cleaning may be done by a professional or appropriately Tank Tank
Finished Water Storage Checklist. A copy of inspection results and labeled photographs. The date that any corrective actions needed to address deficiencies with the tank components will be completed. EPA will review the inspection report and may require additional corrective actions. Does the tank have an from the vent? @ No overflow on finished water storage tank. In order to protect the integrity of the tank in the case of control system failure leading to overfilling, the tank must have an overflow that is separate from the vent. Is the for Unknown integrity of storage tank overflow [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank overflow [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is Tank
completed. EPA will review the inspection report and may require additional corrective actions. has a #24 mesh OR a valve OR a valve with a #24 mesh Overflow screening on finished water storage tank needed. (see photo #) Overflow must be fitted with a non corrodible screen, or properly sealed flapper or duckbill valve to prevent (including carried by insects, rodents, and birds) from entering the water system. The screen should preferably be installed within the pipe at a location least susceptible to vandalism. When a flapper valve is used, a screen must be placed inside the valve (EPA Region 8 recommends #24-mesh mesh be
used). In cold climates, use of a flapper or duckbill valve should be considered to minimize air movement and hence ice formation in the tank. In cold climates, provisions should be considered to prevent the flapper or duckbill from freezing shut. Does the line no less than 12 but no more than 24 the Overflow on finished water storage tank discharges at improper height*. (see photo #) Overflow must be to an elevation between 12 and 24 inches above the ground surface and discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the over an inlet plate, or Overflow discharge on finished water storage tank needed*. (see photo #) Overflow must discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the have an air gap of 3 or more pipe the to any or Overflow on finished water storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain. (see photo #) No overflow may be directly connected to a sanitary combined sewer or storm sewer drain. An air gap must be present such that the overflow pipe terminates at least three pipe diameters above the ground level at the sewer or storm drain, or over a splash pad. Is the drain for Unknown integrity of storage tank drain [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank drain [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed. Tank Tank Tank Tank
repaired if necessary to ensure the structural integrity and reliability of the tank. Are there any in the tank etc)? Storage tank not sealed*. (see #) Other than the openings afforded by the #24 mesh screens on the and overflows, all openings must be sealed completely to prevent (including carried by insects, rodents, and birds) from entering the water system. [Describe specific openings such as: All openings between the roof and sidewalls must be sealed and watertight. Any openings from antennas, telemetry, and other must be sealed and watertight.] If the tank is more than 10 years old, was it and the last 10 Storage tank not cleaned and inspected within the last 10 The tank must be cleaned and inspected. Please see the enclosed Finished Water Storage Tank Checklist for a list of items that must be evaluated during the inspection. Tanks need to be periodically cleaned and inspected to prevent the growth of potentially harmful pathogens in the accumulated sediments and to address construction issues before they require major repairs. Inspections and cleaning may be done by a professional or appropriately Tank Tank leaks
used). In cold climates, use of a flapper or duckbill valve should be considered to minimize air movement and hence ice formation in the tank. In cold climates, provisions should be considered to prevent the flapper or duckbill from freezing shut. Does the line no less than 12 but no more than 24 the Overflow on finished storage tank discharges at improper height*. (see photo #) Overflow must be piped to an elevation between 12 and 24 inches above the ground surface and discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the over an inlet plate, or Overflow discharge on finished water storage tank needed*. (see photo #) Overflow must discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the have an air gap of 3 or more pipe the to any or Overflow on finished water storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain. (see photo #) No overflow may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the overflow pipe terminates at least three pipe diameters above the ground level at the sewer or storm drain, or over a splash pad. Is the drain for Unknown integrity of storage tank [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank drain [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed. Tank Tank Tank Tank
EPA will review the inspection report and may require additional corrective actions. Does the drain pipe have an air gap of 3 or more pipe the to any or Drain on finished water storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain*. (see photo #) No drain may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the drain pipe terminates at least three pipe diameters above the ground level at the sewer drain, storm drain, splash pad or engineered rip-rap. Does the tank have a vent from the No vent on finished water storage tank. In order to protect the structural integrity of the tank during changes to tank water levels, and other events affecting the confined air space, the tank must have a vent that is separate from the overflow. Is the vent for Unknown integrity of storage tank air vent [add inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank air vent [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed. Tank
necessary to ensure the structural integrity and reliability of the tank. Are any in the tank etc)? Storage tank not sealed*. (see photo #) Other than the openings afforded by the #24 mesh screens on the and overflows, all openings must be sealed completely to prevent (including carried by insects, rodents, and birds) from entering the water system. [Describe specific openings such as: All openings between the roof and sidewalls must be sealed and watertight. Any openings from antennas, telemetry, and other must be sealed and watertight.] If the tank is more than 10 years old, was it and the last 10 Storage tank not cleaned and inspected within the last 10 years. The tank must be cleaned and inspected. Please see the enclosed Finished Water Storage Checklist for a list of items that must be evaluated during the inspection. Tanks need to be periodically cleaned and inspected to prevent the growth of potentially harmful pathogens in the accumulated sediments and to address construction issues before they require major repairs. Inspections and cleaning may be done by a professional or appropriately leaks
completed. EPA will review the inspection report and may require additional corrective actions. has a #24 mesh OR a valve OR a valve with a #24 mesh Overflow screening on finished water storage tank needed. (see photo #) Overflow must be fitted with a non corrodible screen, or properly sealed flapper or duckbill to prevent (including carried by insects, rodents, and birds) from entering the water system. The screen should preferably be installed within the pipe at a location least susceptible to vandalism. When a flapper valve is used, a screen must be placed inside the valve (EPA Region 8 recommends #24-mesh mesh be flow
used). In cold climates, use of a flapper or duckbill valve should be considered to minimize air movement and hence ice formation in the tank. In cold climates, provisions should be considered to prevent the flapper or duckbill from freezing shut. Does the line no less than 12 but no more than 24 the Overflow on finished water storage tank discharges at improper height*. (see photo #) Overflow must be piped to an elevation between 12 and 24 inches above the ground surface and discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the over an inlet plate, or Overflow discharge on finished water storage tank needed*. (see photo #) Overflow must discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the have an air gap of 3 or more pipe the to any or Overflow on finished storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain. (see photo #) No overflow may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the overflow pipe terminates at least three pipe diameters above the ground level at the sewer or storm drain, or over a splash pad. Is the drain for Unknown integrity of storage tank drain [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank drain [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed.
EPA will review the inspection report and may require additional corrective actions. Does the drain pipe have an air gap of 3 or more pipe the to any or on finished water storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain*. (see photo #) No drain may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the drain pipe terminates at least three pipe diameters above the ground level at the sewer drain, storm drain, splash pad or engineered rip-rap. Does the tank have a vent from the No vent on finished water storage tank. In order to protect the structural integrity of the tank during changes to tank water levels, and other events affecting the confined air space, the tank must have a vent that is separate from the overflow. Is the vent for Unknown integrity of storage tank air vent [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank air vent [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed.
completed. EPA will review the inspection report and may require additional corrective actions. Is the hatch at least 24” the roof or is on tanks or or 4“ the roof for tanks level or Hatch on Finished Water Storage Tank is not elevated to the required height*. (see photo #) Above Ground Tanks (elevated or ground-level, where the hatch is greater than 4 feet above ground level): The tank hatch must be framed at least four inches above the surface of the roof. Below Ground Tanks (buried or partially buried): The tank hatch must be elevated a minimum of 24 inches above the top of the tank surface or ground surface, whichever is higher. Does the hatch have a shoe box lid? Hatch on Finished Water Storage does not have a shoe box lid*. (see photo #) The tank hatch must be fitted with a solid watertight cover which extends down around the frame at least two inches. Is the lid tight and with a Hatch on Finished Water Storage Tank does not have a gasket that creates a water tight seal. (see photo #) The tank must have a rubber gasket to seal the hatch lid to the frame tightly to prevent (including carried by insects, rodents, and birds) from entering the water system. Is the hatch on Finished Water Storage Tank does not have a locking device. (see photo #) The cover must have a locking device. Is the site to Storage tank located in an area subject to flooding. (see # [insert site specific problem and remedy] Does the tank Storage tank not structurally sound or properly (see photo # ) The storage tank does not appear to be structurally sound. Specifically, the [tank component] of the tank must be evaluated by a professional engineer familiar with the construction of tanks to determine the integrity of the tank’s [tank component]. Failure to maintain the structural and sanitary integrity of the tank could lead directly to within the tank, illness and/or the loss of property. professional evaluation of the storage high
tank must be made as soon as possible and it must be repaired if necessary to ensure the structural integrity and reliability of the tank. Does the Storage tank foundation does not appear to be structurally (see photo # ) The storage tank foundation does not appear to be structurally It must be evaluated by a professional engineer familiar with the construction of tanks. to maintain the structural and sanitary integrity of the tank foundation could lead directly to within the tank, illness and/or the loss of property. professional evaluation of the storage tank foundation must be made as soon as possible and the foundation repaired if
necessary to ensure the structural integrity and reliability of the tank. Are there any in the tank etc)? Storage tank not sealed*. (see photo #) Other than the openings afforded by the #24 mesh screens on the and overflows, all openings must be sealed completely to prevent (including carried by insects, rodents, and birds) from entering the water system. [Describe specific openings such as: All openings between the roof and sidewalls must be sealed and watertight. Any openings from antennas, telemetry, and other must be sealed and watertight.] If the tank is more than 10 years old, was it and the last 10 Storage tank not cleaned and inspected within the last 10 The tank must be cleaned and inspected. Please see the enclosed Finished Water Storage Checklist for a list of items that must be evaluated during the inspection. Tanks need to be periodically cleaned and inspected to prevent the growth of potentially harmful pathogens in the accumulated sediments and to address construction issues before they require major repairs. Inspections and cleaning may be done by a professional or appropriately
used). In cold climates, use of a flapper or duckbill valve should be considered to minimize air movement and hence ice formation in the tank. In cold climates, provisions should be considered to prevent the flapper or duckbill from freezing shut. Does the line no less than 12 but no more than 24 the Overflow on finished water storage tank discharges at improper height*. (see photo #) Overflow must be to an elevation between 12 and 24 inches above the ground surface and discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the over an inlet plate, or Overflow discharge point on finished water storage tank needed*. (see photo #) Overflow must discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the have an air gap of 3 or more pipe the to any or Overflow on finished storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain. (see photo #) No overflow may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the overflow pipe terminates at least three pipe diameters above the ground level at the sewer or storm drain, or over a splash pad. Is the drain for Unknown integrity of storage tank drain [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank drain [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed.
EPA will review the inspection report and may require additional corrective actions. Does the drain pipe have an air gap of 3 or more pipe the to any or Drain on finished water storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain*. (see photo #) No may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the drain pipe terminates at least three pipe diameters above the ground level at the sewer drain, storm drain, splash pad or engineered rip-rap. Does the tank have a vent from the No vent on finished water storage tank. In order to protect the structural integrity of the tank during changes to tank water levels, and other events affecting the confined air space, the tank must have a vent that is separate from the overflow. Is the vent for Unknown integrity of storage tank air vent [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank air vent [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed.
tank must be made as soon as possible and it must be repaired if necessary to ensure the structural integrity and reliability of the tank. Does the Storage tank foundation does not appear to be structurally sound*. (see photo # ) The storage tank foundation does not appear to be structurally sound. It must be evaluated by a professional engineer familiar with the construction of tanks. to maintain the structural and sanitary integrity of the tank foundation could lead directly to within the tank, illness and/or the loss of property. professional evaluation of the storage tank foundation must be made as soon as possible and the foundation
Finished Water Storage Checklist. A copy of inspection results and labeled photographs. The date that any corrective actions needed to address deficiencies with the tank components will be completed. EPA will review the inspection report and may require additional corrective actions. Does the tank have an from the vent? @ No overflow on finished water storage tank. In order to protect the integrity of the tank in the case of control system failure leading to overfilling, the tank must have an overflow that is separate from the vent. Is the for Unknown integrity of storage tank overflow [add inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank overflow [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is
completed. EPA will review the inspection report and may require additional corrective actions. has a #24 mesh OR a valve OR a valve with a #24 mesh Overflow screening on finished water storage tank needed. (see photo #) Overflow must be fitted with a non corrodible screen, or properly sealed flapper or duckbill to prevent (including carried by insects, rodents, and birds) from entering the water system. The screen should preferably be installed within the pipe at a location least susceptible to vandalism. When a flapper valve is used, a screen must be placed inside the valve (EPA Region 8 recommends #24-mesh mesh be
used). In cold climates, use of a flapper or duckbill valve should be considered to minimize air movement and hence ice formation in the tank. In cold climates, provisions should be considered to prevent the flapper or duckbill from freezing shut. Does the line no less than 12 but no more than 24 the Overflow on finished water storage tank discharges at improper height*. (see photo #) Overflow must be piped to an elevation between 12 and 24 inches above the ground surface and discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the over an inlet plate, or Overflow discharge point on finished water storage tank needed*. (see photo #) Overflow must discharge over a drainage inlet structure, splash plate, or engineered rip-rap. Does the have an air gap of 3 or more pipe the to any or Overflow on finished storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain. (see photo #) No overflow may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the overflow pipe terminates at least three pipe diameters above the ground level at the sewer or storm drain, or over a splash pad. Is the for Unknown integrity of storage tank drain [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed.
EPA will review the inspection report and may require additional corrective actions. Does the pipe have an air gap of 3 or more pipe the to any or on finished water storage tank is directly connected to a sanitary sewer, combined sewer or storm sewer drain*. (see photo #) No drain may be directly connected to a sanitary sewer, combined sewer or storm sewer drain. An air gap must be present such that the drain pipe terminates at least three pipe diameters above the ground level at the sewer drain, storm drain, splash pad or engineered rip-rap. Does the tank have a vent from the No vent on finished water storage tank. In order to protect the structural integrity of the tank during changes to tank water levels, and other events affecting the confined air space, the tank must have a vent that is separate from the overflow. Is the vent for Unknown integrity of storage tank air vent [add other inaccessible components to consolidate language]. The sanitary surveyor was unable to evaluate the tank air vent [add other components to consolidate], and the water system was not able to produce of the condition of these components. Each item that could not be inspected during the sanitary survey must be inspected and the must be compared to the enclosed Tech Tips for Finished Water Storage Facilities to determine if corrective action is needed.
completed. EPA will review the inspection report and may require additional corrective actions. Is the hatch at least 24” the roof or is on tanks or or 4“ the roof for tanks level or Hatch on Finished Water Storage is not elevated to the required height*. (see photo #) Above Ground Tanks (elevated or ground-level, where the hatch is greater than 4 feet above ground level): The tank hatch must be framed at least four inches above the surface of the roof. Below Ground Tanks (buried or partially buried): The tank hatch must be elevated a minimum of 24 inches above the top of the tank surface or ground surface, whichever is higher. Does the hatch have a shoe box lid? Hatch on Finished Water Storage does not have a shoe box lid*. (see photo #) The tank hatch must be fitted with a solid watertight cover which extends down around the frame at least two inches. Is the lid tight and with a Hatch on Finished Water Storage does not have a gasket that creates a water tight seal. (see photo #) The tank hatch must have a rubber gasket to seal the hatch lid to the frame tightly to prevent (including carried by insects, rodents, and birds) from entering the water system. Is the hatch Hatch on Finished Water Storage does not have a locking device. (see photo #) The cover must have a locking device. (SW Does the use a or that is in of the NSF 60 Max System has a potential violation for excess dosing of a chemical that contains or (141.111). (SW Does the of the CFE with EPA #5? Combined Filter Effluent (CFE) turbidity monitoring location is not of the filtered The system’s finished water (CFE) turbidimeter sampling location is not of the filtered water. [describe system specific situation and remedy] (SW Are at least once Must Be Calibrated Quarterly. Turbidity is used to measure filtration effectiveness, and incorrect turbidity monitoring has the potential to allow to pass into the finished water. The Long 1 Enhanced Surface Water Treatment Rule requires that turbidimeter calibration be conducted using procedures specified by the manufacturer. To be consistent with typical manufacturer specifications for surface water treatment plants, turbidimeters for measuring individual filter effluent (IFE) and combined high
winter conditions the plant disinfection process is not able to achieve 1.0 log inactivation of Giardia at the first user. Therefore, the system must resume conducting and passing daily direct integrity tests on both membrane skids to receive the higher Giardia removal credits associated with membrane filtration. (SW For does each have its own Inadequate Filtration Design or Operation, resulting in Inadequate Treatment* (this is a violation of 141.719b4 for systems that receive credit for additional filtration under the The individual membrane filtration units are not equipped with a turbidimeter that continuously samples the individual filter effluent (IFE). Membrane units that do not (1) have an individual filter turbidimeter, and (2) are not continuously monitoring turbidity from each unit with a 0.15 NTU trigger for repeat direct integrity testing, are
elements should be evaluated to ensure that flow and pressure limits are not exceeded; flowmeters and flow restrictors should be installed as needed if the filters are not designed for the maximum flow from the intake Pressure gauges should be installed up and downstream of the cartridges to allow daily monitoring and recording of pressure drops and to trigger filter change outs when limits are close to being reached. (SW and Does the PWS keep daily of the drop the and when to out Inadequate filtration design or operation. Adequate microbial removal requires that a cartridge system not be used at conditions exceeding its design specifications (flow rate, inlet pressure and pressure drop), and that the cartridge be properly installed in the housing for which it was designed. In order to ensure that these conditions are met, the differential pressure across the filter bags should be monitored and recorded daily and the filters should be changed out when the limits are close to being reached. The system is currently not monitoring manufacturer
sensor calibration verifications. The system must work with the UV unit manufacturer to begin performing and documenting monthly UV intensity sensor calibration verifications on all UV units. If any UV sensor does not meet the quality control requirements specified in the UV Disinfection Guidance Manual, it must be recalibrated. (SW (UV >40 gpm) Is the of the UV at with a Dose The system does not check the of their online UV analyzer on a weekly basis. As a system that utilizes UV disinfection to achieve inactivation credit to meet the requirements of the Long 2 Enhanced Surface Treatment Rule, you are required to continuously monitor the finished water UV This parameter is a primary input into the calculated dose equation used to demonstrate that adequate inactivation is being achieved. The system currently
must repair all flow meters as necessary to allow for direct monitoring of the flow rate at each UV unit. (SW (UV >40 gpm) Are kept of flow run time, lamp UV UVT and UV System has a potential violation for failing to maintain UV operation records (greater than 40 gpm UV) (141.720d5). (SW (UV >40 gpm) Does the how to an event and it to the The system operators do not know how to properly identify an event and report it to the EPA (greater than 40 gpm UV). (no standard language) (SW (UV >40 gpm) Does the when an event The plant's SCADA is not set up to alarm when an event occurs (greater than 40 gpm UV)*. (no standard language) (SW Is this the 1st user of the System has a potential violation for monitoring the POE chlorine residual at a point that is not prior to the first user of the water (141.74c2). (SW Are the two 0.1 mg/L or 15% of one is Inadequate Treatment Process Monitoring for Surface Water Treatment Plants. The online chlorine residual analyzer at the of entry was not adequately calibrated and periodically verified. The chlorine residual at the point of entry measured by the surveyor using a handheld DPD device varied substantially from the reading by the online analyzer. According to EPA Method 334.0: of Residual Chlorine in Drinking Water Using an On-Line Chlorine Analyzer; during routine calibration checks of the online
operating logs. The continuous analyzer chlorine residual reading must be within 0.1 mg/L or 15% (whichever is greater) of the grab sample measurement. If the readings are outside of this range, follow-up calibration procedures are required. (SW Does the at point of System has a potential violation for failing to monitor bromate at the of entry according to the required frequency (system using ozone) (141.132b3). (SW Does the daily at point of System has a potential violation for failing to monitor chlorine dioxide at the point of entry according to the required frequency (system using chlorine dioxide) (141.132c2). (SW Does the at point of entry daily and in the System has a potential violation for failing to monitor chlorite at the point of entry according to the required frequency (system using chlorine dioxide) (141.132b2). (SW Does the have a on site that a year of log pop.) or a year of daily log One year disinfection profile not completed. This public water system was required to conduct one year of disinfection profiling as part of the Long 1 Enhanced Surface Water Treatment Rule. The disinfection profile consists of inactivation calculations for Giardia and viruses calculated once per week over a year’s time. During this sanitary survey, a complete one year profile was not available for review. The system must collect information on the plant’s flow rate, contact tank volume, pH, temperature, and chlorine residual on at least a weekly basis to calculate
Giardia and virus inactivation levels for one year. This information should be used to complete the required one year disinfection profile and the profile should then be kept in the plant’s records indefinitely. Failure to have the profile available for review during sanitary surveys is a violation of 40 C.F.R. §141.536. (SW If yes, was EPA System has a potential violation for failing to consult the EPA prior to making a significant change to their disinfection practices (141.570d or 141.172c). (SW > 4 logs? Inadequate inactivation design or operation (CT)*. The Surface Water Treatment Rule requires that water systems achieve at least 99.99% (4-log) removal and/or inactivation of viruses. The cartridge filtration system employed is not credited with any virus removal due to the large size of the pores in comparison with the size of viruses. In addition, the UV system is not credited with virus inactivation due to the relatively high UV resistance of viruses. The system must therefore achieve 99.99% inactivation of viruses through chemical disinfection.
profiling spreadsheet provided to the water system should be used weekly to document that the inactivation necessary to achieve the required total reduction of Giardia is achieved. A completed copy must be provided to EPA to show that this significant deficiency has been resolved. If the system is unable to obtain the required inactivation, the system should be modified to increase the level of inactivation (i.e. installation of a second method of inactivation or installation of additional storage to increase contact time). (SW > logs? System has a potential violation for failing to maintain adequate treatment for as required in the LT2 rule (Bins 2 or higher system or system that committed to install maximum treatment) (141.711a).* Are lines after are Distribution lines are not properly disinfected after repairs. Failure to adequately disinfect drinking water lines following repair can lead to introduction of into the distribution system. Water lines must be disinfected according to accepted standards (e.g. AWWA C651) following repair. Is there at least 20 psi at all in the at all Low pressure or loss of pressure (less than 20 psi)*. Presently, some areas of the distribution system have pressure less than 20 psi. This low pressure creates significant risk for backflow and system In order to correct this significant deficiency, you must identify the cause(s) of the low pressure and provide of how it was corrected. Bulk / Fill Air Gap or Inadequate backflow prevention on [insert station name] bulk water fill station*. (See photo #) Bulk fill stations present a potential provide a pathway for to enter the drinking water system during backflow events and therefore present a potential public health threat. A reduced pressure backflow assembly (RPZ) or permanent air gap device must be installed at this facility. An RPZ must be inspected and tested at least annually to ensure proper function. For corrective actions refer connection.
to WY DEQ Chapter 12 Section 14(i) regulations on Cross Connections. Do any have that the Air relief valve (ARV) vault contains standing water (see photo #) An ARV vault near [describe location] contained standing water from ground water intrusion or in the pipes or valves. Standing water at the discharge point of the air relief valve could create a potential backflow problem if the system loses pressure and the water is siphoned back into the main. Does each have the at the and air gap the size of the pipe severe hazard present*. (See photo #) (see examples listed below) provide a pathway for to enter the drinking water system during backflow events and therefore present a potential public health threat. The survey identified [specify the cross connection found during the survey] as a severe hazard cross A reduced pressure backflow assembly and air gap that is twice the size of the supply pipe diameter but always greater than one inch must be installed at the service
but than one connection to this facility and must be inspected and tested at least annually to ensure proper function. For corrective actions refer to WY DEQ Chapter 12 Section 14(i) regulations on Cross Connections. Does each in the plant or have the air gap or high hazard present*. (See photo #) (see examples listed below) provide a pathway for to enter the drinking water system during backflow events and therefore present a potential public health threat. The survey identified [specify the cross connection found during the survey] as a high hazard cross A reduced pressure backflow assembly (RPZ) or air gap must be installed at the service connection to this facility. An RPZ must be inspected and tested at least annually