10-6-2-2: ILLICIT CONNECTIONS:

It is prohibited to establish, use, maintain or continue illicit drainage connections to the MS4, or to commence or continue any illicit discharges to the MS4. (1952 Code § 8-15-02.02)

10-6-2-3: PARKING LOTS AND SIMILAR STRUCTURES:

   A.   Best Management Practices: Persons owning or operating a paved parking lot, gas station pavement, paved private street or road, or similar structure, or conducting routine building wash downs, shall clean and maintain those structures consistent with the City nonstormwater disposal Best Management Practices prior to discharging to a storm drain.

   B.   Drainage Requirements:

      1.   All water from nonstormwater sources or incidental stormwater sources (i.e., blown through openings and windows or transported on vehicles) that enter newly developed or significantly redeveloped covered parking garages are to be directed to the sanitary sewer disposal system, unless that alternative is not reasonably feasible. Newly developed or significantly redeveloped covered permanent parking garages may drain into a storm drain when no feasible alternative is available, with the consent of the owner and operator and in accordance to this and other City ordinances. The owner and operator of a storm drain may impose requirements, including the construction of control structures to ensure the pretreatment of such discharges prior to entry into the storm drain. All water from direct stormwater sources that enter uncovered parking garages is to go to a stormwater disposal system in accordance with section 10-6-3 of this chapter.

      2.   For projects governed by other jurisdictions, e.g., the Ada County Highway District (ACHD) or a drainage district, the applicant must comply with their standards and requirements and receive approval from those entities. (1952 Code § 8-15-02.03)

10-6-2-4: OUTDOOR STORAGE AREAS; COMMERCIAL AND INDUSTRIAL FACILITIES:

   A.   Storage Of Hazardous Substances: In outdoor areas, no person shall store grease, oil or other hazardous substances in a manner that will or may result in such substances entering a storm drain system. In outdoor areas, no person shall store motor vehicles, machine parts or other objects in a manner that may leak grease, oil or other hazardous substances to a storm drain.

   B.   Spill Containment System: To prevent the discharge of hazardous substances to the MS4, the City may require the installation of a spill containment system. Spill containment systems may consist of a system of dikes, walls, barriers, berms or other devices as required. No person shall operate a spill containment system such that it allows incompatible liquids to mix and thereby create a hazardous condition. (1952 Code § 8-15-02.04)

10-6-2-5: CONSTRUCTION SITES:

Any person performing construction work in the City shall comply with the provisions of this chapter and title 9, chapter 14, "Construction Site Erosion Control", of this Code. (1952 Code § 8-15-02.05)

10-6-2-6: NONSTORMWATER USE OF STORM DRAINS:

The City nonstormwater disposal Best Management Practices establishes minimum requirement for nonstormwater storm drain uses within the City and is incorporated by reference and made part of this chapter. Discharges from the following activities will be allowed, subject to application of the City nonstormwater disposal Best Management Practices: water line flushing and other discharges from potable water sources; landscape irrigation and lawn watering; irrigation water; diverted stream flows; rising groundwaters; uncontaminated groundwater infiltration to storm drains; uncontaminated pumped groundwater; foundation and footing drains; roof drains; water from crawl space pumps; residential air conditioning condensation; springs; individual residential car washes; flows from riparian habitats and wetlands; dechlorinated swimming pool discharges; or flows from firefighting activities and training. (1952 Code § 8-15-02.06)

10-6-2-7: DISCHARGE PURSUANT TO NPDES PERMIT:

The prohibition of discharges shall not apply to any discharge regulated under an NPDES permit issued and administered by the EPA; provided, that the discharger is in full compliance with all requirements of the permit and other applicable laws or regulations. Compliance with an applicable NPDES permit governing discharges into the MS4 shall be considered compliance with this chapter. (1952 Code § 8-15-02.07)

10-6-2-8: COMPLIANCE WITH NPDES PERMIT:

   A.   Any discharge that would cause a violation of a Municipal NPDES permit, and any amendments, revisions or reissuance thereof, either separately considered or when combined with other discharges, is prohibited. Liability for any such discharge shall be the responsibility of the person causing or responsible for the discharge, and the City shall seek to have such persons defend, indemnify and hold harmless the City in any administrative or judicial enforcement action against the permit holder relating to such discharge as provided by applicable rules of law.

   B.   All persons in charge of a facility are to comply with applicable Federal and State laws, including facility personnel, training, training record maintenance, training records, maintenance of notification procedures, and implementation of notification requirements for spill response to assure containment, clean up and immediate notification to the owner and operator of the MS4.

   C.   Individuals responsible for spills are to comply with applicable State and Federal notification requirements to assure containment, clean up and immediate notification to the owner and operator of the MS4. (1952 Code § 8-15-02.08)

10-6-3: STORMWATER MANAGEMENT PLANS AND COMPREHENSIVE DRAINAGE PLANS: