§ 271.914. Pollutant limits.
(a) Sewage sludge other than residential septage.
(1) Sewage sludge may not be applied to the land if the concentration of any pollutant in the sewage sludge exceeds the ceiling concentration for the pollutant in Table 1.
(2) If sewage sludge, other than sewage sludge that meets the criteria of § 271.911(b)(1) or (3) (relating to special requirements), is applied to agricultural land, forest, a public contact site or a reclamation site, the cumulative loading rate for each pollutant may not exceed the cumulative pollutant loading rate for the pollutant in Table 2.
(3) If sewage sludge is applied to a lawn or a home garden, the concentration of each pollutant in the sewage sludge may not exceed the concentration for the pollutant in Table 3.
(4) If sewage sludge is sold, given away or otherwise distributed, in a bag or other container for application to the land, the concentration of each pollutant in the sewage sludge may not exceed the concentration for the pollutant in Table 3.
(b) Tables.
(1) Ceiling concentrations.
TABLE 1—CEILING CONCENTRATIONS
Ceiling Concentration Pollutant (Milligrams per Kilogram)1 Arsenic 75 Cadmium 85 Copper 4,300 Lead 840 Mercury 57 Molybdenum 75 Nickel 420 PCBs 8.6 Selenium 100 Zinc 7,500 1 Dry weight basis
(2) Cumulative pollutant loading rates.
TABLE 2—CUMULATIVE POLLUTANT LOADING RATES
Cumulative Pollutant Loading Rate (Kilograms per English Units Pollutant Hectare) (Pounds per Acre) Arsenic 41 36 Cadmium 39 34 Copper 1,500 1,320 Lead 300 264 Mercury 17 15 Nickel 420 370 Selenium 100 88 Zinc 2,800 2,464
(3) Pollutant concentrations.
TABLE 3—POLLUTANT CONCENTRATIONS
Monthly Average Concentrations (Milligrams per Pollutant Kilogram)1 Arsenic 41 Cadmium 39 Copper 1,500 Lead 300 Mercury 17 Nickel 420 PCBs 4 Selenium 100 Zinc 2,800 1 Dry weight basis.
(4) Revisions to concentrations or loading rates. A new or revised pollutant concentration or loading rate published in the Federal Register as a modification to 40 CFR 503.13(b) (relating to pollutant limits) is incorporated by reference.
(c) Residential septage. The annual application rate for residential septage applied to agricultural land, forest or a reclamation site may not exceed the annual application rate calculated using Equation (1).
Where:
AAR = Annual Application Rate in gallons per acre per 365-day period.
N = Amount of nitrogen in pounds per acre (kilograms per hectare) per 365-day period needed by the crop or vegetation grown on the land.
Cross References This section cited in 25 Pa. Code § 271.821 (relating to application for general permit); 25 Pa. Code § 271.911 (relating to special requirements); 25 Pa. Code § 271.913 (relating to general requirements); 25 Pa. Code § 271.917 (relating to frequency of monitoring); 25 Pa. Code § 271.918 (relating to recordkeeping); and 25 Pa. Code § 271.919 (relating to reporting).
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