§ 34-214.4. Monitoring and analysis in support of self-monitoring requirements.

(a)

The reports required by sections 34-186, 34-211, 34-213, 34-215 and 34-216 shall be based on sampling and analysis performed in the period covered by the report, at the location set forth by the control authority, and performed in accordance with the sampling and analysis procedures as outlined in section 34-214.2. This sampling and analysis may be performed by the control authority in lieu of the industrial user. Where the control authority itself collects all the information required for the report, the user will not be required to submit the report.

(b)

If sampling performed by a user indicates a violation, the user shall notify the superintendent within 24 hours of becoming aware of the violation. The user shall also repeat the sampling and analysis and submit the results of the repeat analysis to the superintendent within 30 days after becoming aware of the violation, except the user is not required to resample if:

(1)

The control authority performs sampling at the industrial user at a frequency of at least once per month; or

(2)

The control authority performs sampling at the industrial user between the time when the user performs its initial sampling and the time when the user receives the results of such sampling.

If the control authority performs the sampling for the SIU, the control authority must perform any required repeat sampling and analysis within 30 days of becoming aware of a violation.

(c)

The reports required in paragraphs (a) and (d) of section 34-213 shall be based upon data obtained through appropriate sampling and analysis performed during the period covered by the report, which data is representative of conditions occurring during the reporting period. The control authority shall require that frequency of monitoring necessary to assess and assure compliance by industrial users with applicable pretreatment standards and requirements.

(d)

If an industrial user subject to the reporting requirement in sections 34-186, 34-211, 34-213, 34-215 and 34-216 monitors any pollutant more frequently than required by the control authority, using the procedures prescribed in this section, the results of this monitoring shall be included in the report.

(e)

The reports required by sections 34-211, 34-213, 34-215 and 34-216 shall include the certification statement as set forth in 40 CFR 403.6(a)(2)(ii), and shall be signed by an authorized representative.

(f)

The reports required in sections 34-211, 34-212, 34-213(a) and 34-213(d) must be based upon data obtained through appropriate sampling and analysis performed during the period covered by the report, which data are representative of conditions occurring during the reporting period. The control authority shall require that frequency of monitoring necessary to assess and assure compliance by industrial users with applicable pretreatment standards and requirements. Grab samples must be used for pH, cyanide, total phenols, oil and grease, sulfide, and volatile organic compounds. For all other pollutants, 24-hour composite samples must be obtained through flow-proportional composite sampling techniques, unless time-proportional composite sampling or grab sampling is authorized by the control authority. Where time-proportional composite sampling or grab sampling is authorized by the control authority, the samples must be representative of the discharge and the decision to allow the alternative sampling must be documented in the industrial user file for that facility or facilities. Using protocols (including appropriate preservation) specified in 40 CFR part 136 and appropriate EPA guidance, multiple grab samples collected during a 24-hour period may be composited prior to the analysis as follows: For cyanide, total phenols, and sulfides the samples may be composited in the laboratory or in the field; for volatile organic compounds and oil and grease the samples may be composited in the laboratory. Composite samples for other parameters unaffected by the compositing procedures as documented in approved EPA methodologies may be authorized by the control authority, as appropriate.

(Ord. No. 514, § 9, 8-20-2009; Ord. No. 585, § 1, 6-21-2018)