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The terms used in this Chapter shall have the following meanings: (Ord. 2532, § 1, 05/26/2015)

(a) Best Management Practices (BMPs). Schedules of activities, prohibition of practices, general good housekeeping practices, pollution prevention and educational practices, maintenance procedures, and other management practices to prevent or reduce to the maximum extent practicable the direct and indirect discharge of pollutants to the County storm drain system and to waters of the U.S. BMPs shall also be defined to include but are not limited to: treatment facilities to remove pollutants from stormwater; operating and maintenance procedures; design standards; facility management practices to control runoff, spillage or leaks of non-stormwater, waste disposal, and drainage from materials storage; erosion and sediment control; and the prohibition of specific activities, practices, and procedures and such other provisions as the County determines appropriate for the control of pollutants. (Ord. 2532, § 1, 5/26/2015)

(b) Clean Water Act. The Federal Water Pollution Control Act (33 U.S.C. §§ 1251 , et seq.), and any subsequent amendments thereto. (Ord. 2532, § 1, 5/26/2015)

(c) County. The County of Humboldt. (Ord. 2532, § 1, 5/26/2015)

(d) Construction Activity. Any project that involves soil disturbing activities with the potential to discharge pollutants to the County storm drain system or waters of the U.S., including but not limited to, clearing, grading, paving, disturbances to ground such as stockpiling, and excavation. Construction activities shall also be defined to include, but are not limited to, new construction, reconstruction, development, and redevelopment that create or replace impervious surfaces resulting in increased stormwater runoff compared to pre-construction activity site conditions. (Ord. 2532, § 1, 5/26/2015)

(e) Discharge. Any addition or introduction of any pollutant, storm drain system or waters of the U.S. (Ord. 2532, § 1, 5/26/2015)

(f) Discharger. Any person, entity, or responsible party who discharges or causes to discharge, either directly or indirectly, stormwater or any other material into the County storm drainage system or waters of the U.S. (Ord. 2532, § 1, 5/26/2015)

(g) Hazardous Materials. A hazardous material can generally be defined as anything that has potential to cause significant harm to human health or the environment. Hazardous materials include, but are not limited to, any material that, because of its quantity, concentration, or physical or chemical characteristics, poses a significant present or potential hazard to human health and safety, or to the environment, if released into the workplace or environment including hazardous substances, hazardous wastes, and any material which a handler or the responsible party has a reasonably believes would be injurious or harmful. (Ord. 2532, § 1, 5/26/2015)

(h) Illicit Discharge. Any direct or indirect non-stormwater discharge to the storm drain system, except as exempted in this Chapter. (Ord. 2532, § 1, 5/26/2015)

(i) Illicit Connections. An illicit connection is defined as either of the following: (Ord. 2532, § 1, 05/26/2015)

(1) Any drain or conveyance, whether on the surface or subsurface, which allows an illicit discharge to enter the storm drain system, including, but not limited to, any conveyances which allow any non-stormwater discharge including sewage, process wastewater, and wash water to enter the storm drain system and any connections to the storm drain system from indoor drains and sinks, regardless of whether said drain or connection had been previously allowed, permitted, or approved by a government agency; or (Ord. 2532, § 1, 5/26/2015)

(2) Any drain or conveyance connected from a commercial or industrial land use to the storm drain system which has not been documented in plans, maps, or equivalent records and approved by the County. (Ord. 2532, § 1, 5/26/2015)

(j) Industrial Activity. Activities subject to NPDES Industrial Permits as defined in 40 CFR, §122.26 (b)(14). (Ord. 2532, § 1, 5/26/2015)

(k) Maximum Extent Practicable. The minimum required performance standard for implementation of controls to reduce pollutants in stormwater. Maximum Extent Practicable is the cumulative effect of implementing, evaluating, and making corresponding changes to a variety of technically appropriate and economically feasible BMPs, ensuring that the most appropriate controls are implemented in the most effective manner. (Ord. 2532, § 1, 5/26/2015)

(l) National Pollutant Discharge Elimination System (NPDES). A national program for issuing, modifying, revoking, reissuing, terminating, monitoring and enforcing permits. The NPDES also sets forth the necessary frame work for imposing and enforcing pretreatment requirements pursuant to the Clean Water Act. (Ord. 2532, § 1, 5/26/2015)

(m) Non-Stormwater Discharge. Any discharge to the storm drain system or waters of the U.S. that is not composed entirely of stormwater. (Ord. 2532, § 1, 5/26/2015)

(n) MS4. Municipal Separate Storm Sewer System. (Ord. 2532, § 1, 5/26/2015)

(o) MS4 General Permit. State Water Resources Control Board Water Quality Order No. 2013-0001-DWQ and NPDES General Permit No. CAS000004 – Waste Discharge Requirements for Stormwater Discharges from Small MS4s, including any amendments or revisions thereto. (Ord. 2532, § 1, 5/26/2015)

(p) Pollutant. Anything which causes or contributes to pollution, including, but not limited to: dredged spoil, solid waste, incinerator residue, filter backwash, sewage, garbage, sewage sludge, munitions, chemical wastes, biological materials, radioactive materials, heat, wrecked or discarded equipment, rock, sand, cellar dirt and industrial, municipal and agricultural waste discharged into water. (Ord. 2532, § 1, 5/26/2015)

(q) Pollution. An alteration of the quality of waters of the State of California or waters of the U.S. by waste to a degree which unreasonably affects the beneficial uses of the water or facilities which serve those beneficial uses. (Ord. 2532, § 1, 5/26/2015)

(r) Porter-Cologne Act. The Porter-Cologne Water Quality Control Act (California Water Code §§ 13000 , et seq.) and any subsequent amendments thereto. (Ord. 2532, § 1, 5/26/2015)

(s) Premises. Any building, lot, parcel of land or portion of land whether improved or unimproved, including adjacent sidewalks and parking strips. (Ord. 2532, § 1, 5/26/2015)

(t) Responsible Party. A person, company, agency, or other entity that possesses an ownership interest (including, but not limited to, fee simple ownership, easement, leasehold or other rights of way) in a property, facility, or activity. (Ord. 2532, § 1, 5/26/2015)

(u) Storm Drain System. The basic infrastructure in a municipal separate storm sewer system that collects and conveys stormwater runoff to a treatment facility or receiving water body. (Ord. 2532, § 1, 5/26/2015)

(v) Stormwater. Surface runoff and drainage resulting from storm events and snowmelt. (Ord. 2532, § 1, 5/26/2015)

(w) Water Course. A natural or artificial channel through which water flows. (Ord. 2532, § 1, 5/26/2015)

(x) Waters of the State of California. Any surface water or groundwater, including saline waters, within the boundaries of the State of California (California Water Code §§ 13050 , et seq.) (Ord. 2532, § 1, 5/26/2015)

(y) Waters of the U.S. . Surface watercourses and water bodies as defined at 40 CFR 122.2. including all natural waterways and definite channels and depressions in the earth that may carry water, even though such waterways may only carry water during rains and storms and may not carry stormwater at and during all times and seasons. (Ord. 2532, § 1, 5/26/2015)