(A) Sampling manhole applicability.
(1) All non-residential users are required to install a sampling manhole for each separate discharge in the building sewer in accordance with the plans and specifications approved by the village and § 13-2-35(D).
(a) When required by the village, a SIU or NSRU, that does not have a unique sampling chamber at end-of-pipe, shall install a monitoring manhole or sampling chamber for use as the regulation location of local limits in the building sewer in accordance with plans and specifications approved by the village.
(b) When required by the village, a categorical industrial user shall install a monitoring manhole or sampling chamber for use as the regulation location of the categorically regulated discharge in the building sewer in accordance with plans and specifications approved by the village. This sampling chamber may be required to be installed within the building and may be in addition to an end-of-pipe manhole.
(2) The village reserves the right to apply said local limits in § 13-6-5(A) and (B) at an end-of process discharge location that connects to the POTW sewer system in the event that:
(a) A unique sampling manhole at end-of-pipe is not available;
(b) A more representative sample can be taken of a process batch discharge even though an end-of-pipe manhole exists;
(c) A more representative sample can be taken at the end-of-process location than the end-of-pipe location as a result of impacts from dilute wastestreams;
(d) An end-of process location is used because the IU is unable to provide adequate flow documentation to use a combined wastestream formula.
(2) In the event that a suitable sampling manhole does not exist as per § 13-6-7 and no end-of-process discharge sampling location exists, the "sampling facility" shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected.
(B) Wastewater monitoring and/or flow measurement facility operation and maintenance.
(1) Such facilities will be installed and maintained at all times at the user's expense. The failure of a user to keep its monitoring facility in good working order shall not be grounds for the user to claim that the sample results are unrepresentative of its discharge. Installation will be consistent with the requirements of § 13-2-35(D).
(2) The manhole or chamber located on a building sewer discharge located in dedicated easements shall be easily accessible to representatives of the village 24 hours per day, seven days per week.
(3) The manhole or chamber at a discharge location within the building shall be accessible to representatives of the village during normal user operating hours.
(4) Metered water supply may be used to determine wastewater flow if it is substantiated to the village that the metered water supply and wastewater quantities are approximately the same, or where an adjustment agreed to by the village is made in the metered water supply to determine wastewater flow which is documented through the use of sub-meters and/or production records. In the event that the wastewater flow cannot be substantiated at any regulated location, the user will be required to install flow monitoring consistent with § 13-2-35(D).
(5) The sampling chamber, flow metering device, sampling equipment and documentation of the frequency of sampling, sampling methods and analysis of samples shall be subject, at any reasonable time, to inspection by the village.
(Ord. 2020-06-18, passed 6-15-2020)