5 Colo. Code Regs. § 1003-7-5
Analysis of water treatment plant sludges shall be performed on composite samples for the parameters set forth in Table 1. Analyses of water treatment plant sludges shall be performed either annually, or if disposal occurs on a less frequent basis, prior to disposal.
If the Department has reasonable grounds to believe that a particular water treatment sludge may contain any elements or compounds which could cause a hazard to the public health or to the environment, the Department may require groundwater, soils or plant tissue monitoring and/or the analysis of water treatment sludge for parameters other than those set forth in Table 1, or may require that analyses be performed at a greater frequency than is otherwise required by this section.
TABLE 1 ANALYSES AND REPORTING UNITS1
Parameter | Units | Parameter | Units |
Total Solids | Percent | Total Chromium | mg/kg |
pH | Standard Units | Total Copper | mg/kg |
Organic-N | Percent | Total Iron | mg/kg |
Total Ammonia-N | Percent | Total Lead | mg/kg |
Nitrate-N | Percent | Total Mercury | mg/kg |
Total Phosphorus | Percent | Total Molybdenum | mg/kg |
Total Potassium | Percent | Total Nickel | mg/kg |
Total Aluminum | mg/kg2 | Total Selenium | mg/kg |
Total Arsenic | mg/kg | Total Zinc | mg/kg |
Total Cadmium | mg/kg | Total Alpha Activity | pCi/g3 |
Annually, on or before February 19, each producer shall report to the Department the results of all analyses the producer has performed during the preceding year to meet the requirements of this section, the total amount of water treatment sludge applied during the preceding year and the location at which any water treatment sludge was applied during the preceding year.
5 CCR 1003-7-5