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UniFirst Corporation <br /> Self-Monitoring Sample Program + <br /> Page 2 of 2 <br /> Sample Discharge 1_;nd, <br /> Pollutant Sample Sample Location (1)Instantaneous max:a." <br /> Parameter Frequency Type (diagram (2)Daily maximum <br /> attached) (3)Monthly maximum <br /> Lead, Total 1 per month 24-hour flow proportional B 2.0 mg/L—(2)local <br /> composite,representative limit <br /> of reporting period. <br /> Nickel, Total 1 per month 24-hour flow proportional B 5.0 mg/L—(2)local <br /> composite, representative limit <br /> of reporting period- <br /> Zinc, <br /> mg/L—(2) local <br /> Zinc, Total 1 per month 24-hour flow proportional limit <br /> composite,representati g ve <br /> of reporting period. <br /> B 0.1 mg/L—(1) local <br /> Mercury, Total 1 per 6 months 24-hour flow proportional limit <br /> composite,representative <br /> of reporting period. <br /> B 1.5 mg/L—(1) local <br /> Silver, Total 1 per 6 months 24-hour flow proportional limit <br /> composite, representative <br /> of reporting period. <br /> g 6.0 mg/L—(1)local <br /> Arsenic, Total 1 per 6 months 24-hour flow proportional limit <br /> composite, representative <br /> of reporting period. <br /> C 4.0 mglL—(1)local <br /> 1 per 6 months Grab, well mixed and limit <br /> PCyaidp representative of sampling " <br /> day and reporting period <br /> 1 per 6 months Grab, well mixed and <br /> C NA <br /> p representative of sampling <br /> day and reporting period <br /> Actve <br /> (MBAS) C 200 mglL—(1) local <br /> 1 per week Grab, well mixed and limit <br /> Oil & Gr—_ease, representative of sampling <br /> Total (HEM) day and reporting period <br /> C 100 mglL— (1)local <br /> Grab, well mixed and limit <br /> 1 per week <br /> Oil & Grease, representative of sampling <br /> Non-Polar day and reporting period <br /> (SGT-HEM) <br />