Code of Colorado Regulations
1000 - Department of Public Health and Environment
1002 - Water Quality Control Commission (1002 Series)
5 CCR 1002-51 - REGULATION NO. 51 - WATER POLLUTION CONTROL REVOLVING FUND RULES
Section 5 CCR 1002-51.2 - DEFINITIONS

(1) "Beneficial Use" - The use or reuse of treatment works effluent or the use of biosolids to act as a soil conditioner or low grade fertilizer for the promotion of vegetative growth on land. Also means a use of water, including the method of diversion, storage, transportation, treatment and application; that is reasonable and consistent with the public interest in the proper utilization of water.

(2) "Best Management Practices" (as found in the definition of "Section 319") - A practice or combination of practices determined to be the most effective, practicable means of preventing or reducing the amount of pollution generated by a nonpoint source to a level compatible with water/stream quality goals. These include, but are not limited to, structural and nonstructural controls and operation and maintenance procedures.

(3) "Biosolids" - The accumulated residual product resulting from processing waste materials from a wastewater and water treatment plant.

(4) "Collection System" (as found in the definition of "On-site wastewater treatment system" and "Treatment Works") - A system of sewers used to collect wastewater and convey the wastewater by gravity or pressure flow to a common point.

(5) "Governmental Agencies" - Departments, divisions, or other units of state government, special districts, water conservation districts, metropolitan water districts, conservancy districts, irrigation districts (as approved by a district court to enter into a contract to accept funding for a wastewater related project under the WPCRF), municipal corporations, counties, cities and other political subdivisions, the United States or any agency thereof, and any agency commission or authority established pursuant to an interstate compact or agreement.

(6) "Green Infrastructure" - Green Infrastructure includes energy efficiency, water efficiency, environmentally innovative technologies and wet weather management that takes advantage of those sustainable functions and services in the natural environment. Green Infrastructure planning approaches and management technologies apply stormwater treatment practices including infiltration, evapotranspiration, and rain harvesting/reuse in order to maintain, restore, or mimic natural hydrologies. On a regional scale, Green Infrastructure is the preservation, restoration, and stabilization of natural features such as forests, meadows, floodplains, wetlands, and receiving waters to allow for wildlife habitat and passage. Coupled with policies such as infill and redevelopment that reduce the effective imperviousness within a watershed, Green Infrastructure applies techniques similar to those found in nature to preserve ecological function and create balance between built and natural environments.

(7) "Impaired Water" - State waters for which credible scientific data exists to demonstrate that the water body does not support its designated beneficial uses and/or does not meet one or more adopted water quality standards and has been identified as impaired in Regulation No. 93 -Colorado's Section 303(d) List of Impaired Waters (5 CCR 1002-93).

(8) "Municipal Separate Storm Sewer Systems (MS4s)" (as found in the definition of "Section 319") -A conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains) that are owned or operated by a state, city, town, county, district, or other public body created pursuant to state law and for which a National Pollutant Discharge Elimination System (NPDES) permit must be obtained.

(9) "Nonpoint Source (NPS)" - A diffused pollution source that is not regulated as a point source, including, but not limited to, sources that are often associated with agriculture, inactive or abandoned mining, silviculture, urban runoff, or runoff from construction activities. NPS pollution does not emanate from a discernible, confined, and discrete conveyance (such as a single pipe) but generally results from land runoff, precipitation, atmospheric deposition, or percolation.

(10) "Nontraditional Project" - A project for which the primary purpose is other than water quality, but which has an additional purpose that is clearly related to the improvement or protection of water quality (e.g. the liner portion of a new landfill is intended to protect water quality).

(11) "On-site Wastewater Treatment System" - A combination of components that may include onsite septic tanks or cluster systems that are designed to treat, neutralize, stabilize, store or dispose of sewage and that is not part of, or connected to, a centralized sewage collection system or treatment works.

(12) "Point Source" (as found in the definition of "Nonpoint Source (NPS)") - Any discernible, confined, and discrete conveyance, including, but not limited to, any pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, concentrated animal feeding operation, or vessel or other floating craft, from which pollutants are or may be discharged. Point source does not include agricultural stormwater discharges and return flows from irrigated agriculture.

(13) "Pollution" - The man-made, man-induced, or natural alteration of the physical, chemical, biological, and radiological integrity of water.

(14) "Project" - A specific improvement to a water quality management system, phase or segment.

(15) "Project Eligibility List" - The list of projects eligible for financial assistance from the Authority through the WPCRF or its other funding capabilities, as adopted and modified in accordance with section 37 95 107.6(4).

(16) "Projected Loan List" - The list of projects that has been partially scored in accordance with the criteria described in the Intended Use Plan. This list represents those projects that may be reasonably anticipated to receive a binding commitment for a loan in the WPCRF program. Projects can be moved from the Project Eligibility List to the Projected Loan List at any time during the year.

(17) "Public Health Hazard" - Any contamination of ground or surface waters, caused by inadequate treatment works or disposal of inadequately treated sludge, which potentially endangers public health through contamination of drinking water supplies or direct public exposure. To qualify as a public health hazard, the contamination must be documented by means of a sanitary survey or engineering report submitted by a governmental agency to the Division.

(18) "Reclaimed Water" - Domestic wastewater that has received secondary treatment by a domestic wastewater treatment works and such additional treatment as to enable the wastewater to meet the standards for approved uses as found in Regulation # 84 (5 CCR 1002-84).

(19) "Section 212" - The section of the Federal Act that provides the statutory authority for programs funded by the WPCRF for the construction of publicly owned treatment works ("POTWs"). Projects eligible for funding under Section 212 may include, but are not limited to, the capital costs for wastewater collection and treatment, municipal stormwater projects, combined sewer overflow, sanitary sewer overflow, pipes, storage and treatment systems, green infrastructure, municipal landfill projects, water conservation and reclaimed water, energy conservation and efficiency, security, and decentralized wastewater treatment systems.

(20) "Section 319" - The section of the Federal Act that provides the statutory authority for programs funded by the WPCRF for the development and execution of comprehensive conservation management plans. Eligible projects under Section 319 may include, but are not limited to, projects that address run-off associated with agricultural activities or abandoned mining operations, and the implementation of best management practices, aging and/or failing on-site wastewater treatment systems, stormwater run-off outside of municipal separate storm sewer system--permitted projects, brownfield contamination, atmospheric deposition, and leaking underground storage tanks.

(21) "Sewage Sludge" (as found in the definition of "Treatment Works") - Solid, semi-solid, or liquid residue generated during the treatment of domestic sewage in a treatment works. Sewage sludge includes, but is not limited to, domestic septage; scum or solids removed in wastewater treatment processes; and any material derived from sewage sludge. Sewage sludge does not include ash generated during the firing of sewage sludge in a sewage sludge incinerator or material generated from preliminary treatment of domestic sewage in a treatment works.

(22) "Traditional Project" - A project for which the primary purpose is water quality protection.

(23) "Sustainability Projects" - Projects and/or planning methodologies that promote sustainable wastewater systems through effective utility management to promote: the conservation of natural resources; alternative approaches such as natural or "green" systems; or innovative approaches and technologies; and consideration of the full life-cycle costs on infrastructure investments (EPA's Clean Water and Drinking Water Infrastructure Sustainability Policy).

(24) "Treatment Works" - Any devices and systems used in the storage, treatment, recycling or reclamation of municipal sewage, sewage sludge, and biosolids, or industrial wastes of a liquid nature or necessary to recycle or reclaimed water or biosolids, including intercepting sewers, outfall sewers, sewage collection systems, pumping, power, and other equipment; extensions, improvements, remodeling, additions, and alterations thereof; elements essential to provide a reliable recycled supply such as stand by treatment units and clear well facilities; and any works, including site acquisition of the land that will be an integral part of the treatment process (including land used for the storage of treated wastewater in land treatment systems prior to land application), or is used for ultimate disposal of residues resulting from such treatment. In addition, Treatment Works means any other method or system for preventing, abating, reducing, storing, treating, separating, or disposing of domestic wastewater, including stormwater runoff, or industrial waste, or waste in combined stormwater and sanitary sewer systems.

(25) "Water Quality Management Plan" - The plan for managing water quality, including consideration of the relationship of water quality to land and water resources and uses, on an areawide basis, for each planning area designated pursuant to sections 208(a) and 303(e) and 319 of the Federal Act.

(26) "Water Quality Management System" - Any treatment works or any other system for disposal of sewage, biosolids, and industrial waste, or NPS pollution control, stormwater protection, ground water protection, and treatment operated by a governmental agency.

(27) "Watershed" - A geographical area in which activities may significantly impact a water body (or segment of concern) or an underlying aquifer. There are several considerations in defining the geographical scope of a watershed: hydrology, political boundaries, uses to be protected, nature of the water quality problem, manageability, available resources, and public interest.