Idaho Admin. Code r. 58.01.25.301

Current through September 2, 2024

Section 58.01.25.301 - PERMIT CONDITIONS FOR SPECIFIC CATEGORIES

In addition to Section 300, conditions identified in this section apply to all IPDES permits within the categories specified below.

01.Existing Manufacturing, Commercial, Mining, and Silvicultural Dischargers. In addition to the reporting requirements under Subsection 300.12, all existing manufacturing, commercial, mining, and silvicultural dischargers must notify the Department as soon as they know or have reason to believe:

a. Any activity has occurred or will occur that results in a discharge, on a routine or frequent basis, of a toxic pollutant that is not limited in the permit if the discharge will exceed the highest of the following notification levels:

i. One hundred micrograms per liter (100 µg/L);

ii. Two hundred micrograms per liter (200 µg/L) for acrolein and acrylonitrile;

iii. Five hundred micrograms per liter (500 µg/L) for 2,4-dinitrophenol and for 2-methyl-4,6-dinitrophenol; and

iv. One milligram per liter (1 mg/L) for antimony;

v. Five (5) times the maximum concentration value reported for that pollutant in the permit application in accordance with Subsection 105.07; or

vi. The level established by the Department in accordance with Subsection 302.08; and

b. Any activity has occurred or will occur that results in a discharge, on a non-routine or infrequent basis, of a toxic pollutant that is not limited in the permit if the discharge will exceed the highest of the following notification levels:

i. Five hundred micrograms per liter (500 µg/L);

ii. One milligram per liter (1 mg/L) for antimony;

iii. Ten (10) times the maximum concentration value reported for that pollutant in the permit application in accordance with Subsection 105.07; or

iv. The level established by the Department in accordance with Subsection 302.08.

02.Publicly Owned Treatment Works. POTWs must provide adequate notice to the Department of:

a. New introduction of pollutants into the POTW from an indirect discharger subject to CWA Section 301 or 306 if it were directly discharging those pollutants; and

b. Substantial change in the volume or character of pollutants introduced into the POTW by a source introducing pollutants into the POTW during permit issuance. For this subsection, adequate notice must include:

i. Quality and quantity of effluent introduced into the POTW, and

ii. Anticipated impact of the change on the quantity or quality of effluent to be discharged from the POTW.

03.Municipal Separate Storm Sewer Systems (MS4s). The operator of a large or medium MS4 or an MS4 designated by the Department under 40 CFR 122.26(a)(1)(v) must submit an annual report by the anniversary of the date of the issuance of the permit. All reports must be submitted electronically by the owner, operator, or the duly authorized representative of the MS4 to the Department in compliance with this section and 40 CFR Part 127 unless waived under 40 CFR 127.15. 40 CFR Part 127 does not eliminate existing requirements for electronic reporting. Independent of 40 CFR Part 127, the owner, operator, or the duly authorized representative of the MS4 may be required to report electronically if specified by a particular permit. The report must include:

a. Status of implementing the components of the storm water management program established as permit conditions;

b. Proposed changes to the storm water management programs established as permit conditions. Proposed changes must be consistent with Subsection 105.18.b.iii.;

c. Revisions, if necessary, to the assessment of controls and the fiscal analysis reported in the permit application under Subsection 105.18.b.iv. and 105.18.b.v.;

d. Summary of data, including monitoring data, accumulated throughout the reporting year;

e. Annual expenditures and budget for the year following each annual report;

f. Summary describing the number and nature of enforcement actions, inspections, and public education programs; and

g. Identification of water quality improvements or degradation.

04.Storm Water Dischargers. The initial permits for discharges composed entirely of storm water issued under 40 CFR 122.26(e)(7) require compliance with the conditions of the permit as expeditiously as practicable but no later than three (3) years after the date of permit issuance.

05.Concentrated Animal Feeding Operations (CAFOs). An applicable permit must include provisions under 40 CFR 122.42(e).

Idaho Admin. Code r. 58.01.25.301

Effective July 1, 2024