§ 60-116. Sample collection.

(a)

Except as indicated in subsection (b) of this section, industrial users shall collect wastewater samples using flow proportional composite collection techniques unless the director determines that such techniques are infeasible or inappropriate. In such cases, the director may authorize the use of other collection techniques which will provide a representative sample of the effluent or discharge. In addition, grab samples may be required to show compliance with instantaneous discharge limits.

(b)

Samples for oil and grease, temperature, pH, cyanide, phenols, toxicity, sulfides, and volatile organic compounds shall be obtained using grab sample collection techniques.

(c)

All wastewater samples shall be representative of the industrial user's effluent or discharge. Wastewater monitoring and flow measurement facilities shall be properly operated, kept clean, and maintained in good working order at all times. The failure of an industrial user to keep its monitoring facility or facilities clean and in good working order shall not be grounds for the industrial user to claim that sample results are unrepresentative of its discharge or effluent.

(Ord. No. 120551, § 1, 6-28-12)