(A) The following pollutant limitations are established to protect against pass through and interference. No person shall discharge wastewater containing in excess of the following daily maximum concentrations based upon a 24-hour composite sample. Additionally, no person shall discharge wastewater containing in excess of the following maximum concentration times a multiplier of 1.5 based upon a grab sample. The 1.5 grab sample multiplier does not apply to hex. chromium, cyanide and phenols in that analytical procedures do not allow for composite techniques to be applied to these parameters. For hex. chromium, cyanide and phenols, three grab sample results shall be analyzed with results not to exceed the following noted limitations:
(1) 0.08 mg/l arsenic (total);
(2) 400 mg/l BOD (daily maximum);
(3) 550 mg/l COD (daily maximum)
(4) 0.025 mg/l cadmium (total)1;
(5) 3.0 mg/l hex. chromium1;
(6) 800 mg/l chloride;
(7) 3.0 mg/l total chromium1;
(8) 250 mg/l total suspended solids (daily maximum);
(9) 0.233 mg/l copper1;
(10) 0.074 mg/l cyanide (total)1;
(11) 0.17 mg/l lead (total)1;
(12) 0.005 mg/l mercury (total)1;
(13) 0.06 mg/l molybdenum2
(14) 0.30 mg/l nickel1;
(15) 100 mg/l oil and grease;
(16) 1.00 mg/l phenols;
(17) 0.08 mg/l selenium;
(18) 2.13 mg/l TTO;
(19) 0.5 mg/l zinc (total)2
(B) In divisions (A)(1) through (19) above, 1 indicates that the limitation is derived from a waste load model based upon 1990 State Water Quality Standards, and 2 indicates that the limitation is derived from a waste load model based upon Federal Sludge Regulations, the same being 40 CFR Part 503.
(C) The above limits apply at the point where the wastewater is discharged to the POTW. All concentrations for metallic substances are for total metal unless indicated otherwise. The Superintendent may impose limitations in addition to, or in place of, the concentration based limitations above.
(D) Upon the promulgation of the National Categorical Pretreatment Standard (NCPS) for a particular user, the standard, if more stringent then the limitations imposed under this chapter for sources in that category shall, when effective, immediately supersede the limitations and conditions imposed under this chapter. The Wastewater Superintendent shall notify all known affected users of the applicable permitting and reporting requirements under 40 CFR 403.12.
(Ord. 842, passed 4-1-2000) Penalty, see § 10.99