Source: http://www.codepublishing.com/wa/Sumner/html/Sumner13/Sumner1348.html
Timestamp: 2013-05-18 15:58:15
Document Index: 750353941

Matched Legal Cases: ['§ 11', '§ 1', '§ 11', '§ 1', '§ 11', '§ 1', '§ 11', '§ 1', '§ 11', '§ 1', '§ 11', '§ 1', '§ 11', '§ 1', '§ 11', '§ 1', '§ 11', '§ 1']

Chapter 13.48STORMWATER MANAGEMENT REGULATIONS
A. The purpose of these regulations is to: 1. Protect, maintain, and enhance the public health, safety and general welfare by establishing minimum requirements and procedures to control the adverse impacts associated with increased stormwater runoff and water quality degradation for all sites located within the city for which a permit from the city is required prior to land altering activities. Proper management of stormwater runoff will minimize damage to public and private property, reduce the effects of development on land and stream channel erosion and sedimentation, assist in the attainment and maintenance of water quality standards and reduce flooding.
A. The city of Sumner has adopted the 2005 Washington State Department of Ecology Stormwater Management Manual for Western Washington together with any amendments or corrections. B. The city of Sumner has adopted the NPDES Western Washington Phase II Municipal Stormwater Permit, Appendix 1 – Minimum Technical Requirements for New Development and Redevelopment, except as amended herein and as described below:
1. The city does not adopt the erosivity waiver procedures outlined under Section 4.2 – Minimum Requirement No. 2: Construction Stormwater Pollution Prevention Plan (SWPP).
2. The city does not adopt the one-acre regulatory threshold identified in Section 3.1 – Thresholds.
C. The city of Sumner has adopted the 2005 Puget Sound Partnership Low Impact Development Technical Guidance Manual for Puget Sound together with any amendments or corrections.
E. Where there are discrepancies between these adopted references, the standard that provides the most environmental protection shall be used. (Ord. 2356 § 11 (part), 2011: Ord. 2316 § 1 (part), 2010)
1. Additions or Modifications to Existing Single-Family Detached Residential Structures and Their Accessory Buildings. If the thresholds in the manual are exceeded, a stormwater site plan is required. Applicants for additions or modifications to single-family residential structures are still required to provide stormwater control for the additional impervious area created by the project by tight-lining flow from the downspouts to the stormwater collection system located in the right-of-way adjacent to the property frontage. If a stormwater collection system is not located within the right-of-way fronting the property, or if site conditions make it physically impossible to connect the downspouts to the stormwater collection system, stormwater control shall be constructed per the single-family residential infiltration system guide contained in the Sumner Development Specifications and Standard Details. 2. Projects That Will Construct a Single House on a Single Residential Lot That Is Not Part of a Short Subdivision or Subdivision. If the thresholds in the manual are exceeded, a stormwater site plan is required. If exempt from developing a stormwater site plan, applicants for single-family residential construction on a single residential lot shall still be required to provide stormwater control by tight-lining flow from the downspouts to the stormwater collection system located in the right-of-way adjacent to the property frontage. If a stormwater collection system is not located within the right-of-way fronting the property, or if site conditions make it physically impossible to connect the downspouts to the stormwater collection system, stormwater control shall be constructed per the single-family residential infiltration system guide contained in the Sumner Development Specifications and Standard Details.
4. Developments or other land-disturbing activities that do not disturb over 5,000 square feet of land area.
5. Any proposed land-disturbing activity, fill, or cut involving 50 cubic yards of earth or less.
3. A hydraulic project approval (HPA), if required, is applied for by the permittee and is issued by the Washington Department of Fish and Wildlife; 4. The outfall does not violate any stormwater diversions as documented in Appendix 1E of Volume I of the manual;
D. Projects exempt from a site development permit are exempt from preparing a stormwater site plan. (Ord. 2356 § 11 (part), 2011: Ord. 2316 § 1 (part), 2010. Formerly 13.48.034)
For the purposes of these regulations, the following definitions describe the meaning of the terms used in these regulations and in the Sumner Development Specifications and Standard Details. 1. “Adverse impact” means any deleterious effect on waters or wetlands, including their quality, quantity, surface area, species composition, aesthetics or usefulness for human or natural uses which are or may potentially be harmful or injurious to human health, welfare, safety or property, to biological productivity, diversity, or stability or which unreasonably interfere with the enjoyment of life or property, including outdoor recreation.
8. “Buffer area” is defined in SMC 16.12.135. Buffers shall not be used for stormwater management facilities unless otherwise specifically allowed in SMC Title 16. 9. “City” means the city of Sumner, Washington, or, as indicated by the context, may mean the public works department, public works director, public works superintendent, city engineer, or other employee or agent representing the city in the discharge of his or her duties.
11. “City engineer” means the directing engineer for the city. Any act in this chapter requiring the authorization of the city engineer may be done by an authorized employee of the engineering department. 12. “Civil engineer” means a professional engineer registered in the state of Washington to practice in the field of civil engineering. 13. “Clearing” means the removal of trees, brush, and other vegetative growth from the land in such a manner to affect the erosion potential of the soils on a site. “Clearing” shall not include the ordinary mowing of grass. 14. “Construction” means the implementation of all land-disturbing activities. 15. “Construction stormwater pollution prevention plan” means an engineering plan showing all BMPs, controls, and measures which will be implemented by the applicant to minimize erosion on the subject property and remove suspended sediment from site runoff during and immediately after the period of construction or other land-disturbing activity. The construction stormwater pollution prevention plan is a required element of a stormwater site plan and shall be developed in accordance with the manual. 16. “Continuous construction” means an orderly sequential construction with no significant delays due to factors within the control of the applicant. 17. “Detention facilities” means facilities designed to hold runoff for a period of time and then release it to a natural or manmade watercourse at a predetermined rate generally approximating what would have occurred under predevelopment conditions. 18. “Development” means land-altering activities that change the runoff characteristics of a parcel of land in conjunction with residential, commercial, industrial, or institutional construction or alteration. “Development” includes construction of new structures or redevelopment of previously altered sites. New development includes land-disturbing activities, including Class IV – General forest practices that are conversions from timberland to other uses; structural development, including construction or installation of a building or other structure; creation of impervious surfaces; and subdivision, short subdivision and binding site plans, as defined and applied in chapter 58.17 RCW. Projects meeting the definition of “redevelopment” shall not be considered new development.
On a site that is already substantially developed (that has 35 percent or more of existing impervious surface coverage), “redevelopment” means the creation or addition of impervious surfaces; the expansion of a building footprint or addition or replacement of a structure; structural development including construction, installation or expansion of a building or other structure; replacement of impervious surface that is not part of a routine maintenance activity; and land-disturbing activities. 19. “Sumner Development Specifications and Standard Details” means the specifications and standard details manual available from the public works department that contains technical specifications and details for the design, construction, and maintenance of stormwater facilities.
20. “Drainage” means water originating from rainfall or other precipitation which is transmitted downhill through sheet flow, rivulets, channels, drainage ditches, pipes, creeks, streams, and rivers. 21. “Drainage area” means that area contributing runoff to a single point measured in a horizontal plane, which is enclosed by a ridge line. 22. “Drainage basin plan” means the plan adopted by ordinance for managing storm drainage and surface water runoff facilities and features within the city’s drainage basins. 23. “Easement” means a grant or reservation by the owner of land for the use of such land by others for a specific purpose or purposes, and which must be included in the conveyance of land affected by such easement. 24. “Ecology” means the Washington State Department of Ecology. 25. “Equivalent service unit (ESU)” means and is equal to 2,400 square feet of impervious groundcover to be used by the city in assessing service fees for the storm drainage utility and determining system development charges. A single-family residential parcel is designated as a single ESU irrespective of the size of parcel or the amount of impervious area on such parcel, until such time as the parcel is segregated or the use of the land is modified to other than single-family. 26. “Erosion” means the wearing away of land surface from action of wind, water, gravity or any combination thereof. 27. “Erosion and sediment control best management practices (BMPs)” means a practice, control device, or construction method which is designed to either prevent erosion or remove suspended sediment from runoff. Erosion and sedimentation control BMP options are identified in Volume II of the manual. 28. “Exemption” means those land development activities that are not required to develop a stormwater site plan as outlined in these regulations. 29. “Existing conditions” means:
iv. Vegetated pervious cover shall be considered 100 percent pasture unless the site or portions thereof were wooded or forested prior to site work. 30. “Fee and rate schedule” means the list of charges, to applicants or other persons, established by the city council to reimburse the city for time spent in review of permit applications and inspection of potential or actual violations of law. 31. “Flow attenuation” means detaining or retaining runoff to reduce the peak discharge. 32. “Grading” means any act by which soil is cleared, stripped, stockpiled, excavated, scarified, filled or any combination thereof. “Grading” also means movement of earth requiring the removal of most or all of the existing vegetation and in sufficient quantities to alter the natural topography and general character of a site. 33. “Illicit connection” means any manmade conveyance that is connected to a municipal separate storm sewer without a permit, excluding roof drains and other similar type connections. Examples include sanitary sewer connections, floor drains, channels, pipelines, conduits, inlets, or outlets that are connected directly to the municipal separate storm sewer system. 34. “Illicit discharge” means any discharge to a municipal separate storm sewer that is not composed entirely of stormwater except discharges pursuant to a NPDES permit (other than the NPDES permit for discharges from the municipal separate storm sewer) and discharges resulting from fire-fighting activities. Illicit discharges include, but are not limited to, sanitary sewer connections, industrial process water, interior floor drains, fuel islands, car washing, and grey water systems. Illicit discharges are further described in SMC 13.48.820. Discharges from fire-fighting activities are not included in the definition of “illicit discharges.” 35. “Impervious surface,” as defined in the glossary and notations appendix to Volume I of the manual, is a hard-surfaced area either which prevents or retards the entry of water into the soil in the manner that such water entered the soil under natural conditions pre-existent to development, or which causes water to run off the surface in greater quantities or an increased rate of flow than that present under natural conditions pre-existent to development. Impervious surfaces include, but are not limited to, roof tops, asphalt or concrete paving, driveways, parking lots, walkways, patio areas, storage areas, packed earthen materials, and oiled, macadam, or other surfaces which similarly impede the natural infiltration or runoff patterns of stormwater existing prior to development.
Open, uncovered retention/detention facilities shall not be considered as impervious surface for the purposes of determining whether thresholds for application of minimum requirements are exceeded. Open, uncovered retention/detention facilities shall be considered impervious surface, however, for the purposes of hydrologic modeling. For stormwater design, flow control, and water quality treatment purposes, graveled or rock surfaces for parking lots, storage areas, driveways, and other uses approved and constructed in accordance with city standards are considered impervious areas. For calculating rates and fees for the stormwater utility, graveled or rock surfaces for parking lots, storage areas, driveways, and other uses, whether existing or approved and constructed in accordance with city standards and requirements, and water surface areas of stormwater facilities, are not considered impervious areas. 36. “Infiltration” means the passage or movement of water into the soil surface. 37. “Land-disturbing activities” means the clearing or removal of vegetation, or the movement of earth or other sediment-producing materials which are in direct contact with the ground or the removal of existing improvements such as foundations or other features down to bare soil. 38. “Low impact development” means a stormwater management and land development strategy applied at the parcel and subdivision scale that emphasizes conservation and use of on-site natural features integrated with engineered, small-scale hydrologic controls to more closely mimic predevelopment hydrologic functions. Low impact development shall be in accordance with the standards set forth in these regulations. 39. “Manual” means the 2005 version of the Stormwater Management Manual for Western Washington (SMMWW) issued by the Washington State Department of Ecology together with any corrections or amendments. 40. “Minimum requirements” means the minimum requirements for stormwater management described in the NPDES Phase II permit. The minimum requirements include:
i. Minimum Requirement 9, Basin/Watershed Planning.
j. Minimum Requirement 10, Operation and Maintenance. 41. “Municipal separate storm sewer system (MS4)” means a conveyance, or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, manmade channels, or storm drains):
c. Which is not a combined sewer; and d. Which is not part of a publicly owned treatment works (POTW) as defined in 40 CFR 122.2.
42. “National Pollutant Discharge Elimination System (NPDES)” means the national program for issuing, modifying, revoking, and reissuing, terminating, monitoring, and enforcing permits, and imposing and enforcing pretreatment requirements, under Sections 307, 318, 402, and 405 of the CWA, for the discharge of pollutants to surface waters of the state from point sources. These permits are referred to as NPDES permits and, in Washington State, are administered by the Washington Department of Ecology. 43. “Notice of violation” means the written document served on an applicant or other person subject to the provisions of this chapter which precedes all forms of enforcement actions including stop work orders, revocation of permits, and assessment of cumulative civil penalties. 44. “NRCS” means the Natural Resource Conservation Service, formerly the Soil Conservation Service. The NRCS is a federal agency within the United States Department of Agriculture. 45. “NPDES Phase II permit” means the stormwater permit issued by Ecology in accordance with the NPDES as promulgated under the CWA.
46. “On-site stormwater management” means the design and construction of systems necessary to control stormwater within an immediate development. 47. “Permittee” means the person, property owner, corporation, utility, government agency, or any other private or governmental entity applying for or granted a site development or other permit. 48. “Private outfall” means a stormwater conveyance element, e.g., a ditch or pipe, which discharges directly into a receiving water body that is exempt from flow control and does not divert water or upstream contributing area run-on from the natural discharge location of the site. Additional requirements for private outfalls are identified in the Sumner Development Specifications and Standard Details. 49. “Retention facilities” means facilities designed to hold water for a length of time and then release it by evaporation, transpiration, or infiltration into the ground. Depending on infiltration rates, retention facilities may hold water longer than detention facilities. 50. “Rough grading” means the preliminary clearing and shaping of a site. 51. “Runoff” is the water that travels across the land surface and discharges to water bodies either directly or through a collection and conveyance system. See also “stormwater.” 52. “SCS” means the Soil Conservation Service, which is now the NRCS. Previously, the SCS issued several documents related to hydrology and hydraulics, such as soil maps, TR20, Computer Program for Project Formulation Hydrology, and TR55, Urban Hydrology for Small Watersheds. 53. “Sediment” means soils or other surficial materials transported or deposited by the action of wind, water, ice, or gravity as a product of erosion. 54. “Sensitive areas” means those areas defined and regulated under SMC Title 16. Sensitive areas shall not be used for stormwater management for proposed projects unless specifically allowed by SMC Title 16 and all required mitigation is provided. 55. “Single-family residential property or parcel” means any property or parcel which contains only one residential unit. Properties or parcels which contain more than one residence or residential unit shall be classified as multifamily residential properties or parcels. 56. “Site” means any tract, lot or parcel of land or combination of tracts, lots, or parcels of land which are in one ownership, or are contiguous and in diverse ownership, where development is to be performed as part of a unit, subdivision, or project. 57. “Short subdivision” means the division or redivision of land into four or fewer lots, tracts, parcels, sites or divisions for the purpose of sale, lease or transfer of ownership. 58. “Slope grade” means the ratio of horizontal run to vertical fall on a slope and shall be expressed as a ratio or as a percentage of a one-to-one ratio. 59. “Small municipal separate storm sewer system (small MS4)” is a conveyance or system of conveyances including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, manmade channels, and/or storm drains which is:
60. “SMC” shall mean the Sumner Municipal Code. 61. “Special district” means a district formed and operated under the provisions of RCW Title 85. Special districts include diking districts; drainage districts; diking, drainage, and/or sewerage improvement districts; intercounty diking and drainage districts; consolidated diking districts, drainage districts, diking improvement districts, and/or drainage improvement districts; or flood control districts. 62. “Stabilization” means the prevention of soil movement by any of various vegetative and/or structural means. 63. “Stabilize” means to secure soil or deposited sediment so that the rate of erosion is minimized. 64. “Steep slopes” means slopes which exceed 25 percent slope grade. 65. “Stormwater” means runoff during and following precipitation and snowmelt events, including surface runoff and drainage. 66. “Stormwater comprehensive plan” means the plan adopted by the city council for managing storm drainage and surface water runoff facilities and features within the city’s drainage basins. 67. “Stormwater management” means:
b. For quality control, a system of vegetative, structural, and/or other measures that reduce or eliminate pollutants that might otherwise be carried by surface runoff. 68. “Stormwater management facilities” means constructed facilities that collect, convey, treat, detain, or retain stormwater. Stormwater management facilities may include such elements as catch basins, manholes, pipes, LID BMPs, detention ponds, retention ponds, or other elements. Stormwater management facilities may be on private parcels, in public easements, or in public rights-of-way. Storm drainage systems with pipe and drainage structures are also considered stormwater management facilities for purposes of this chapter. Stormwater management facilities may also be referred to as “stormwater facilities.” 69. “Stormwater management program (SWMP)” means a set of actions and activities designed to reduce the discharge of pollutants from the regulated small MS4 to the maximum extent practicable and to protect water quality, and comprising the components listed in S5 or S6 of the NPDES Phase II permit and any additional actions necessary to meet the intent of these stormwater management regulations. 70. “Stormwater site plan” means the comprehensive report containing all of the technical information and analysis necessary for the city to evaluate a proposed new development or redevelopment project for compliance with stormwater requirements. Contents of the stormwater site plan will vary with the type and size of the project, and individual site characteristics. The stormwater site plan includes a construction stormwater pollution prevention plan (construction SWPPP) and a permanent stormwater control plan. Guidance on preparing a stormwater site plan is contained in Volume I, Chapter 3 of the manual. The stormwater site plan shall be prepared by an engineer licensed by Washington State. 71. “Stripping” means any activity which removes the vegetative surface cover including tree removal, clearing, grubbing and storage or removal of topsoil. 72. “Subdivision” means the division or redivision of land into five or more lots, tracts, parcels, sites or divisions for the purpose of sale, lease or transfer of ownership, consistent with the provisions of this chapter; provided, that the term “subdivision” also includes the redivision of land into four or fewer lots, tracts, parcels sites or divisions for the purpose of sale, or transfer of ownership where such land has been short subdivided within the previous five years. 73. “Subject property” means the tract of land which is the subject of the permit, and/or approval action, and/or inspection of violation, as defined by the full legal description of all parcels involved. 74. “System development charges” are one-time charges assessed on new development or redevelopment to provide an equitable recovery of existing system infrastructure costs and to provide a source of revenue for future capital construction. System development charges are in addition to any actual cost incurred for system improvements or connection to an existing system as required for development. 75. “TESC” means temporary erosion and sediment control measures to avoid adverse impacts to downstream water resources or on-site stormwater management facilities during construction. “TESC” also includes construction stormwater pollution prevention. 76. “UIC” means the underground injection control rule promulgated by Ecology under chapter 173-218 WAC. Stormwater management facilities that are considered Class V wells under the UIC rule are usually shallow injection wells that inject fluids above the uppermost ground water aquifer. Some examples are dry wells, french drains, and drain fields. A UIC well is one of the following: (a) a bored, drilled, or driven shaft, or dug hole whose depth is greater than the largest surface dimension; (b) an improved sinkhole; or (c) a subsurface fluid distribution system. “Subsurface fluid distribution system” means an assemblage of perforated pipes, drain tiles, or other similar mechanisms intended to distribute fluids below the surface of the ground. Class V wells must be registered with Ecology in accordance with SMC 13.48.350.
77. “Valley” shall generally mean that portion within the incorporated limits of the city:
a. East of and including the right-of-way for West Valley Highway; and
b. West of and including East Valley Highway north of the south channel bank of Salmon Creek; and
c. West/southwest of the southwesterly channel bank of Salmon Creek south of East Valley Highway (properties) that do not discharge into Salmon Creek.
78. “Variance” means the modification of the minimum stormwater management requirements for specific circumstances where strict adherence of the requirements would not fulfill the intent of these regulations and would result in unnecessary hardship. 79. “Waiver” means the relinquishment from the stormwater management requirements by the city engineer for the specific development on a case-by-case review basis. 80. “Water quality standards” means Surface Water Quality Standards, chapter 173-201A WAC, Ground Water Quality Standards, chapter 173-200 WAC, and Sediment Management Standards, chapter 173-204 WAC.
81. “Watercourse” means any natural or artificial stream, river, creek, ditch, channel, swale, conduit, culvert, drain, gully, or ravine, in and including any area adjacent thereto, which is subject to inundation or conveys water by reason of runoff-producing precipitation events, overflow from adjacent areas, or flood water. 82. “Waters of the state” includes those waters as defined as “waters of the United States” in 40 CFR 122.2 within the geographic boundaries of Washington State and “waters of the state” as defined in chapter 90.48 RCW, which includes lakes, rivers, ponds, streams, inland waters, underground waters, salt waters, and all other surface waters and watercourses within the jurisdiction of the state of Washington. 83. “Watershed” means a geographic region within which water drains to a particular river, stream, or body of water. Watersheds can be as large as those identified and numbered by the state of Washington Water Resource Inventory Areas (WRIAs) as defined in chapter 173-500 WAC.
84. “Wetlands” means those areas that are inundated or saturated by surface or ground water at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. Wetlands do not include those artificial wetlands intentionally created from nonwetland sites, including, but not limited to, irrigation and drainage ditches, grass-lined swales, canals, detention facilities, wastewater treatment facilities, farm ponds, and landscape amenities, or those wetlands created after July 1, 1990, that were unintentionally created as a result of the construction of a road, street, or highway. Wetlands may include those artificial wetlands intentionally created from nonwetland areas to mitigate the conversion of wetlands. A wetland shall be delineated based on the U.S. Army Corps of Engineers Wetlands Delineation Manual, Technical Report Y-87-1, U.S. Army Engineers Waterways Experiment Station, Vicksburg, MS. (1987). (Ord. 2356 § 11 (part), 2011: Ord. 2316 § 1 (part), 2010. Formerly 13.48.200 – 13.48.285)
A. A site development or building permit application shall contain the following: 1. Application form;
9. A recorded stormwater maintenance agreement; 10. Land use restrictions commensurate with implemented LID practices; and
Each new development or redevelopment in the city of Sumner shall pay a system development charge. Payment for system development charges to the storm drainage system is outlined below. A. Depending on the size and timing of a development, site permits can be issued as follows:
The number of ESUs for single-family residences, including duplex-family units and single-family residences with a detached accessory dwelling, shall be calculated as specified in SMC 13.32.100. The number of ESUs for all other developments, including multifamily, institutional, commercial, and industrial, shall be calculated at 6.12 ESUs per acre. The system development charge per ESU shall be as established in the Sumner utility rate and fee schedule.
The portion of the system development charge collected during the TESC phase shall only be credited against the total system development charge due if the site development permit is issued within three years of issuance of the site permit for the TESC phase.
B. The owner(s) of a parcel shall pay all costs of connecting and discharging runoff from its parcel to the storm drainage system. This obligation shall be assumed in addition to any permit, plan review or inspection fee or other stormwater charges, pursuant to this chapter. C. Effective October 1st of each year, the system development charge shall be adjusted according to the Seattle Construction Cost Index (CCI).
D. The system development charges collected under this chapter shall be deposited in the utility’s capital reserve fund and used only for utility system improvements. (Ord. 2356 § 11 (part), 2011: Ord. 2316 § 1 (part), 2010. Formerly 13.48.320)
All contractors performing work within any existing street right-of-way or any public easement shall have a valid permit covering the work and shall be currently licensed and bonded with the state of Washington and the city during the course of the work. In addition to required bonds, all applicants or their contractors shall maintain a liability policy for the duration of the permit in the amount of not less than $1,000,000 for bodily injury liability (for each occurrence) and for not less than $1,000,000 for property damage liability (for each occurrence). Such insurance shall include the CG 20 12 endorsement naming the city of Sumner, its officers and employees as specifically additional insureds, and the project site address and city project/permit number shall be included in the project description. The applicant shall not reduce or cancel the liability policy without 30 days’ written prior notice to the city. Applicants shall present the city with a certificate of insurance before the city shall issue any permit. (Ord. 2356 § 11 (part), 2011: Ord. 2316 § 1 (part), 2010. Formerly 13.48.332)
B. Downstream properties shall be protected from erosion and flooding due to increases in volumes or rates of runoff due to the activities on the subject property. Conveyance structures, sedimentation basins, traps, and temporary flow control BMPs shall be designed and constructed in accordance with the manual and the NPDES Phase II permit requirements. C. All runoff from the subject property shall pass through sediment control BMPs as detailed in the manual before leaving the subject property. The applicant shall be responsible for preventing erosion and discharge of sediment and other pollutants into receiving waters. (Ord. 2356 § 11 (part), 2011: Ord. 2316 § 1 (part), 2010. Formerly 13.48.454)
A. It shall be unlawful for any individual, firm, or corporation to throw, drain, or otherwise discharge, cause, or allow others under its control to throw, drain, or otherwise discharge into the municipal storm drain system and/or surface and ground waters any materials other than stormwater. B. Products of erosion shall be prevented from entering the public drainage system at all times, both during construction on the property and the subsequent operation of the facilities. All trash and debris shall be prohibited from entering the drainage system at any point within the property.
C. Open water quality treatment facilities that rely on retaining a permanent volume of water, such as wet ponds or combined detention and wet ponds, are prohibited from new construction. Open water quality facilities are also prohibited on redevelopment projects that require new or modified water quality treatment for previously constructed impervious surfaces or previously disturbed pervious surfaces. (Ord. 2356 § 11 (part), 2011: Ord. 2316 § 1 (part), 2010)
D. The applicant shall notify the city before commencing any work in conjunction with the stormwater site plan. The applicant shall notify the city in writing when the project is ready for final inspection. E. Inspection requirements are specified in Chapters 2 and 5 of the Sumner Development Specifications and Standard Details. (Ord. 2356 § 11 (part), 2011: Ord. 2316 § 1 (part), 2010)
D. The city will be responsible for the maintenance and operation of all public storm drainage facilities located within public easements and rights-of-way following the completion of the successful maintenance period and the acceptance of such facilities by the city. (Ord. 2356 § 11 (part), 2011: Ord. 2316 § 1 (part), 2010)
D. Whenever implementing the provisions of the illicit discharge detection and elimination program or whenever there is cause to believe that a violation of this chapter has been or is being committed through illicit discharge or other means, the city is authorized to inspect during regular working hours and at other reasonable times all public or private stormwater drainage systems within the city to determine compliance with the provisions of this chapter. E. Prior to making any inspections, the city’s inspector shall present identification credentials, state the reason for the inspection and request entry. 1. If the property or any building or structure on the property is unoccupied, the inspector shall first make a reasonable effort to locate the owner or other person(s) having charge or control of the property or portions of the property and request entry. 2. If, after reasonable effort, the inspector is unable to locate the owner or other person(s) having charge or control of the property, and has reason to believe the condition of the stormwater drainage system creates an imminent hazard to persons or property, the inspector may enter.
b. A warrant has been lawfully issued. F. Illicit discharges shall be corrected in accordance with the provisions of this chapter.
A. Enforcement action shall be taken whenever a person has violated any provision of this chapter. The choice of enforcement action taken and the severity of any penalty shall be based on the nature of the violation, the damage or risk to the public or to public resources, and/or the degree of bad faith of the persons subject to the enforcement action. B. Voluntary Compliance Agreement.
b. Penalties may be reduced or waived if violations are corrected or mitigated according to the terms and schedule of a voluntary compliance agreement. If the responsible party fails to perform according to the terms and schedule of the agreement, penalties for each violation addressed in the agreement may be assessed starting from the date the violation occurred. 4. The terms and schedule of the voluntary compliance agreement may be modified by mutual agreement of the parties.
C. If a voluntary compliance agreement is not entered into, the city shall have the authority to issue an order to an owner or responsible party to abate the illicit discharge, maintain or repair a component of a stormwater facility or BMP to bring it in compliance with this chapter, city regulations, the Ecology manual, and/or the LID manual. The order shall include: 1. A description of the specific nature, extent, date, and time of the violation and the damage or potential damage that reasonably might occur; 2. A notice to cease and desist the violation or the potential violation and, in appropriate cases, the specific corrective actions to be taken; and 3. A reasonable time to comply, depending on the circumstances.