§ 1145.31. Control of slug discharges.

Each industrial user shall provide protection from slug discharges of restricted materials or other substances regulated by this chapter. The director reserves the right to disallow permitted industries to discharge pollutants to the POTW until the need for slug discharge control plans or procedures has been evaluated by the city.

(A)

Certain industrial users will be required to prepare a slug control plan. The slug control plan shall be submitted to the industrial pretreatment section for review and approval. The plan shall contain, at a minimum, the following elements:

(1)

Description of discharge practices, including non-routine batch discharges;

(2)

Description of stored chemicals;

(3)

Procedures for immediately notifying the city of slug discharges, including any discharge that would violate a prohibition under 40 CFR 403, with procedures for follow-up written notification within five (5) days;

(4)

Procedures to prevent adverse impact from accidental spills, including inspection and maintenance of storage areas, handling and transfer of materials, loading and unloading operations, control of plant site run-off, worker training, building of containment structures or equipment, measures for containing toxic organic pollutants (including solvents), and measures and equipment for emergency response.

(B)

Any user shall notify the pretreatment section immediately of any slug discharge that enters the sewer system at [phone]. If no one is available to accept the telephone notification, call the Sewer Maintenance Section at [phone], which is answered twenty-four (24) hours a day.

(C)

The city further requires a written follow-up report to be filed with the industrial pretreatment section within five (5) calendar days of the incident. The written report shall contain the following:

(1)

A description of the discharge, the cause of the upset and the upset's impact upon the industrial user's compliance status.

(2)

The period of noncompliance, including the exact dates and times of noncompliance, and if the noncompliance continues, the time by which the noncompliance is expected to be corrected.

(3)

Any and all steps taken, or to be taken, to reduce, eliminate and prevent recurrence of the noncompliance.

(D)

The written report shall be submitted as described in Section 1145.50.

Slug control plans shall be submitted every five (5) years concurrent with applications for wastewater discharge permit renewals as described in Section 1145.44(F), or whenever it is deemed necessary by the director.

(Ord. No. 1327-2012, § 1, 7-23-2012, eff. 10-1-2012)