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A. Inspections: The city shall inspect the facilities of any user to ascertain whether the purpose of this Chapter is being met and all requirements are being complied with. Persons or occupants of premises where wastewater is created or discharged shall allow the city/Town or its representatives, upon showing proper identification, ready access at all reasonable times to all parts of the premises for the purposes of inspection, sampling, records examination and copying, or in the performance of any of their duties. The city, superintendent and/or EPA shall have the right to set up on the user's property such devices as are necessary to conduct sampling inspection, compliance monitoring, and/or metering operations. Where a user has security measures in force which would require proper identification and clearance before entry into their premises, the user shall make necessary arrangements with their security guards so that upon presentation of suitable identification, personnel from the city/Town and/or EPA will be permitted to enter, without delay, for the purposes of performing their specific responsibilities.
B. Sample Collection:
1. Except as indicated in subsection B2 of this Section, the industrial user must collect wastewater samples using flow proportional composite collection techniques. In the event flow proportional sampling is unfeasible, the city may authorize the use of time proportional sampling or through a minimum of four (4) grab samples during the operating period of the facility where the user demonstrates that this will provide a representative sample of the effluent being discharged. In addition, grab samples may be required to show compliance with instantaneous discharge limits.
2. Samples for oil and grease, temperature, pH, chromium VI, cyanide, phenols, toxicity, sulfides, and volatile organic chemicals must be obtained using grab collection techniques or as amended hereafter by EPA.
C. Determination Of Noncompliance: The city may use a grab sample(s) to determine noncompliance with pretreatment standards or wastewater contribution permit effluent limitations. (Ord. 99-03, 11-16-1999)