Laserfiche WebLink
Responsible Staff: [Insert text here] <br /> Will pH-modifying sources be present on-site? <br /> Yes No If yes, check the source(s). <br /> Table 3— pH-Modifying Sources <br /> None <br /> Bulk cement <br /> Cement kiln dust <br /> Fly ash <br /> Other cementitious materials <br /> New concrete washing or curing waters <br /> Waste streams generated from concrete grinding and sawing <br /> Exposed aggregate processes <br /> Dewatering concrete vaults <br /> Concrete pumping and mixer washout waters <br /> Recycled concrete <br /> Other(i.e. calcium lignosulfate) [please describe] <br /> Describe BMPs you will use to prevent pH-modifying sources from contaminating stormwater. <br /> List and describe BMPs: [Insert text here] <br /> Installation Schedules: [Insert text here] <br /> Inspection and Maintenance plan: [Insert text here] <br /> Responsible Staff: [Insert text here] <br /> Adjust pH of stormwater if outside the range of 6.5 to 8.5 su. <br /> Obtain written approval from Ecology before using chemical treatment with the exception of CO2 <br /> or dry ice to modify pH. <br /> Concrete trucks must not be washed out onto the ground, or into storm drains, open ditches, <br /> streets, or streams. Excess concrete must not be dumped on-site, except in designated <br /> concrete washout areas with appropriate BMPs installed. <br />