completed. (SW Hatch Hatch Hatch Hatch System on on on on has a (SW (SW Combined EPA Finished Finished Finished will potential Filter Finished Must Be review Water the violation Water Water Water for Effluent Calibrated inspection Storage Storage Storage excess (CFE) Storage Quarterly. dosing Is Does the report is does and not Is Is Does Does the the of turbidity a chemical does does Are may require lid the hatch hatch not not not elevated have have have to a a a the the that monitoring contains Turbidity is hatch tight additional the shoe required box gasket locking location that is used to at corrective height*. (see and have lid*. device. creates or (see (see a not measure a least actions. photo photo water #) #) tight of use a photo #) filtration 24” shoe the seal. (141.111). (see of the effectiveness, box with photo #) at CFE The Above The filtered tank cover and incorrect lid? the a Ground hatch must be least must have a turbidity roof once The fitted Tanks locking tank with a monitoring The system’s or solid (elevated hatch must or device. has the finished ground-level, have watertight a rubber potential to water (CFE) cover where gasket which the to seal allow turbidimeter or with hatch extends is down the hatch lid sampling EPA to greater around the frame the than 4 to pass into location is is feet frame above at least tightly to the finished not high two ground prevent inches. water. The that level): The Long 1 of the on is tank hatch (including Enhanced filtered #5? must be Surface water. in framed at carried by Water [describe least insects, four Treatment system of inches above rodents, and Rule requires specific tanks the the surface of birds) from that situation and NSF the entering roof. the turbidimeter remedy] or 60 Below water system. calibration be Max Ground conducted Tanks using (buried or procedures or partially specified by 4“ buried): The the tank hatch manufacturer. the must be To be roof elevated a consistent for minimum of with typical 24 inches manufacturer above the top specifications of the tank for surface surface or water tanks ground treatment surface, plants, whichever is turbidimeters level higher. for or measuring individual filter effluent (IFE) and combined
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
ss_wyoming_form.docx