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1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />l' <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />L� <br />PENSKE TRUCK LEASING EVERETT ONSITE IMPROVEMENTS <br />CONSTRUCTION STORMWATER POLLUTION PREVENTION PLAN <br />Sitts & Hill Engineers, Inc. <br />Job Number 17,710 <br />are available. Dispose of contained concrete in a manner that does not violate <br />ground water or surface water quality standards. <br />. Always use farms or solid barriers for concrete pours, such as pilings, within 15- <br />feet of surface waters. <br />. Refer to BMP C252: High pH Neutralization Using CO2 (p.409) and BMP C253: <br />pH Control for High pH Water (p.412) for pH adjustment requirements. <br />. Refer to the Construction Stormwater General Permit for pH monitoring require- <br />ments if the project involves one of the following activities: <br />. Significant concrete work (greater than 1,000 cubic yards poured concrete or <br />recycled concrete used over the life of a project). <br />. The use of engineered soils amended with (but not limited to) Portland <br />cement -treated base, cement kiln dust or fly ash. <br />. Discharging stormwater to segments of water bodies on the 303(d) list (Cat- <br />egory 5) for high pH. <br />Maintenance Standards <br />Check containers for holes in the liner daily during concrete pours and repair the same <br />day. <br />BMP C152: Sawcutting and Surfacing Pollution Prevention <br />Purpose <br />Sawcutting and surfacing operations generate slurry and process water that contains <br />fine particles and high pH (concrete cutting), both of which can violate the water quality <br />standards in the receiving water. Concrete spillage or concrete discharge to surface <br />waters of the State is prohibited. Use this BMP to minimize and eliminate process water <br />and slurry created through sawcutting or surfacing from entering waters of the State. <br />Conditions of Use <br />Utilize these management practices anytime sawcutting or surfacing operations take <br />place. Sawcutting and surfacing operations include, but are not limited to, the following: <br />. Sawing <br />. Coring <br />. Grinding <br />. Roughening <br />2014 Stormwater Management Manual for Westem Washington <br />Volume II - Chapter 4 - Page 314 <br />SITTS & HILL ENGINEERS, INC. 49 <br />' TACOMA, WASHINGTON <br />