6b Stormwater Discharge Attachment
Item Number: 6b attach Meeting Date: October 23, 2018 1 2 A Resolution of the Port of Seattle Commission replacing the 3 current policy prohibiting illicit and non- 4 stormwater discharges from being discharged 5 through the stormwater system on Port of Seattle 6 Maritime properties; providing revised definitions 7 and describing fully prohibited, conditionally 8 allowable, and permissible discharges; and 9 repealing existing policy in Resolution No. 3596. 10 11 12 WHEREAS, on January 17, 2007, the Washington State Department of Ecology issued the 13 Phase I Municipal Stormwater Permit ("the Phase I Permit") that regulates discharges from the 14 Port's Municipal Separate Storm Sewer System (MS4) located within the City of Seattle or King 15 County; and 16 17 WHEREAS, the Phase I Permit was reissued on August 1, 2012, and subsequently 18 modified on January 16, 2015, and August 19, 2016; and 19 20 WHEREAS, on March 9, 2007, the Port submitted a Notice of Intent, applying for 21 coverage under the Phase I Permit and has been covered under the Phase I Permit since that 22 time; and 23 24 WHEREAS, Condition S6(E)(3)(b ) of the Phase I Permit requires that the Port develop 25 and adopt appropriate policies prohibiting illicit connections, illicit discharges, and illegal 26 dumping; 27 28 WHEREAS, on March 11, 2008, the Port approved Resolution 3596 prohibiting illicit and 29 non-stormwater discharges to comply with requirements; and 30 31 WHEREAS, the Port is now updating the policy consistent with State and City 32 requirements; 33 34 NOW, THEREFORE, BE IT RESOLVED by the Port Commission of the Port of Seattle as 35 follows: 36 37 SECTION 1. Resolution No. 3596 is hereby repealed. 38 39 SECTION 2. A revised policy directive prohibiting illicit and non-stormwater discharges through 40 Maritime stormwater systems is hereby established as shown in Exhibit A, attached. 41 42 SECTION 3. The policy directive contained in Exhibit A and attached to this resolution shall be 43 labeled and catalogued as appropriate, together with other Commission Policy Directives, and Resolution No. NNNN Illicit and non-stormwater discharges Page 1 of 6 44 shall be made readily available for use by Port staff and members of the public as a governance 45 document of the Port of Seattle. 46 47 ADOPTED by the Port Commission of the Port of Seattle at a duly noticed meeting 48 thereof, held this _____ day of _________, 201 8 , and duly authenticated in open session by the 49 signatures of the commissioners voting in favor thereof and the seal of the commission. 50 51 52 53 54 55 56 57 58 59 60 61 Port Commission 62 EXHIBIT A to RESOLUTION 3750 63 Policy Prohibiting Illicit and Nonstormwater Discharges 64 65 SECTION 1. Purpose. 66 67 Discharges through the Port of Seattle's Municipal Separate Storm Sewer System located within 68 the City of Seattle or King County are regulated by a Washington State Department of Ecology 69 Phase I Municipal Stormwater Permit. The purpose of this policy directive is to comply with 70 Condition S6(E)(3)(b) of the Phase I Permit, which requires that the Port develop and adopt 71 appropriate policies prohibiting illicit connections, illicit discharges, and illegal dumping. 72 73 SECTION 2. Definitions. 74 75 When used in this policy directive, the following words and phrases shall have the meanings 76 given below unless the context in which they are included clearly indicates otherwise: 77 78 "Hazardous substance" means any liquid, solid, gas, or sludge, including any material, 79 substance, product, commodity, or waste, regardless of quantity, that exhibits any of the 80 physical, chemical, or biological properties described in WAC 173-303-090, WAC 173-303-101, 81 173-303-102 or 173-303-103, which may cause, or significantly contribute to, a substantial 82 present or potential hazard to human health, safety, property, or the environment when 83 improperly treated, stored, or transported, disposed of, or otherwise managed. 84 85 "Illicit connection" means any direct or indirect infrastructure connection to the Port of 86 Seattle's Municipal Separate Storm Sewer System that is not intended, permitted, or used for 87 collecting and conveying stormwater or non-stormwater discharges allowed as specified in this 88 policy. 89 90 "Illicit discharge" means any discharge to the Port of Seattle's Municipal Separate Storm Sewer 91 System that is not composed entirely of stormwater or of non-stormwater discharges allowed 92 as specified in this policy. 93 94 "MS4" means the Port of Seattle's Municipal Separate Storm Sewer System. 95 96 SECTION 3. Scope and Applicability. 97 98 A. This policy directive pertains to all discharges through the Port of Seattle's MS4, 99 regardless of discharge source, including the Port of Seattle, its tenants and lease holders, and 100 members of the public. 101 102 SECTION 4. Responsibilities. 103 104 A. The Marine Stormwater Utility Director and Maritime Stormwater Program Manager 105 are responsible for implementation and administration of this policy directive. Resolution No. NNNN Illicit and non-stormwater discharges Page 3 of 6 106 107 SECTION 5. Policy. 108 109 A. Illicit Connections Policy. The construction, use, maintenance, or continued 110 existence of illicit connections to the Port of Seattle's MS4 is hereby prohibited. This prohibition 111 includes illicit connections made in the past, regardless of whether the connection was 112 permissible under law or acceptable practice at the time of connection. Illicit connections must 113 be disconnected and redirected, as necessary, to an approved discharge location. 114 115 B. Illicit Discharge Policy. Illicit discharges to surface water or the Port of Seattle's MS4, 116 whether directly or indirectly, are either fully prohibited or conditionally prohibited, as defined 117 in this section. Allowable discharges, as permitted under the Phase I Permit and the City of 118 Seattle Stormwater Code, are defined in this section. 119 120 (1) Fully prohibited discharges. The common substances prohibited to enter, either 121 directly or indirectly, the Port's MS4 or a receiving water within or contiguous to 122 Port of Seattle Maritime properties, when entering via a service drain, overland 123 flow, as a result of a spill or deliberate dumping, or other methods, include, but 124 are not limited to the following: 125 126 (a) acids 127 (b) alkalis including cement wash water 128 (c) ammonia 129 (d) animal carcasses 130 (e) antifreeze, oil, gasoline, grease and all other automotive and petroleum 131 products 132 (f) chemicals not normally found in uncontaminated water 133 (g) chlorinated swimming pool or hot tub water 134 (h) chlorine 135 (i) commercial and household cleaning materials 136 (j) detergent 137 (k) dirt 138 (l) domestic or sanitary sewage 139 (m) drain cleaners 140 (n) fertilizers 141 (o) filter backwash wastewater 142 (p) flammable or explosive materials 143 (q) food and food waste 144 (r) gravel 145 (s) herbicides 146 (t) human and animal waste 147 (u) ink 148 (v) laundry waste 149 (w) liquid and powdered dyes 150 (x) metals in excess of naturally occurring amounts, whether in liquid or solid 151 form 152 (y) painting products 153 (z) pesticides 154 (aa) process wastewater 155 (bb) sand 156 (cc) soap 157 (dd) solid waste 158 (ee) solvents and degreasers 159 (ff) steam-cleaning waste 160 (gg) yard waste 161 162 (2) Conditionally allowable discharges. Discharges from the sources listed below are 163 permissible discharges only if the stated conditions are met. Even when the 164 stated conditions are met, these discharges are prohibited if the Marine 165 Stormwater Utility Director or Maritime Stormwater Program Manager 166 determines that the type of discharge is causing or contributing to a violation of 167 this policy or is causing or contributing to a water quality problem. 168 169 (a) Discharges from potable water sources, including water line flushing, hyper 170 chlorinated water line flushing, fire hydrant system flushing, pipeline 171 hydrostatic test water, and washing of potable water storage reservoirs are 172 allowed only if planned discharges are de-chlorinated to a total residual 173 chlorine concentration of 0.1 ppm or less, pH-adjusted if necessary, and 174 volumetrically and velocity controlled to prevent resuspension of 175 sediments in the MS4. No chemicals may be added, and settleable solids 176 must be removed prior to discharge. 177 (b) Discharges from lawn watering and other irrigation runoff are allowed only 178 if minimized to the maximum extent practicable. 179 (c) Discharges from swimming pools, spas, hot tubs, fountains, or similar 180 aquatic recreation facilities and constructed water features are allowed 181 only if the discharges are dechlorinated to a concentration of 0.1 ppm or 182 less, pH-adjusted and re-oxygenated if necessary, volumetrically and 183 velocity controlled to prevent resuspension of sediments in the MS4, and 184 thermally controlled to prevent an increase of temperature in the receiving 185 water. Swimming pool cleaning wastewater and filter backwash shall not 186 be discharged to the MS4 under any circumstances. 187 (d) Discharges of street and sidewalk washwater are allowed only when the 188 surfaces are swept prior to washing, detergents are not used, and water 189 use is minimized. 190 (e) Discharges of water from routine external building washdown are allowed 191 only when detergents are not used and water use is minimized. 192 (f) Discharges of water used to control dust are allowed only when water use 193 is minimized . Resolution No. NNNN Illicit and non-stormwater discharges Page 5 of 6 194 (g) Other non-stormwater discharges may be discharged if the Port approves a 195 stormwater pollution prevention plan that addresses control of such 196 discharges. 197 198 (3) Permissible Discharges. The following list provides examples of permissible 199 discharges. Even though generally permissible, these discharges are prohibited if 200 the Marine Stormwater Utility Director or Maritime Stormwater Program 201 Manager determines that the type of discharge is causing or contributing to a 202 violation of this policy or is causing or contributing to a water quality problem. 203 204 (a) Discharges from surface waters, including diverted stream flows 205 (b) Discharges of uncontaminated groundwater, including uncontaminated 206 groundwater infiltration (as defined at 40 CFR 35.2005(b)(20), 207 uncontaminated pumped groundwater, and rising groundwater 208 (c) Discharges of air conditioning condensation 209 (d) Discharges from springs 210 (e) Discharges of uncontaminated water from crawl space pumps 211 (f) Discharges from riparian habitats and wetlands 212 (g) Discharges from approved footing drains, foundation drains, and other 213 subsurface drains or, where approval is not required, installed in 214 compliance with this policy 215 (h) Non-stormwater discharges authorized by another National Pollutant 216 Discharge Elimination System (NPDES) permit or State Waste Discharge 217 permit 218 (i) Discharges that are from emergency firefighting activities 219 (j) Discharges of tracing dye used to establish or verify a drainage or sewer 220 connection 221 222 C. Illegal Dumping Policy. It is prohibited to spill, dump, release, throw, deposit, or 223 place solid waste, litter, pet and human waste, yard waste, or hazardous substances on Port of 224 Seattle property, without permission from the port.
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