Current through Register Vol. 54, No. 25, June 22, 2024
Section 273.116 - Groundwater quality description(a) An application shall contain a description of the chemical characteristics of each aquifer in the proposed permit area and adjacent area, based on at least two quarters of monitoring data, one of which shall include the season of the highest local groundwater levels. This description shall be based on quarterly sampling and analysis from each monitoring well for the following parameters: (1) Ammonia-nitrogen, chloride, chemical oxygen demand, nitrate-nitrogen, pH, specific conductance, total organic carbon, total phenolics, iron, manganese and sodium.(2) Tetrachloroethene, trichloroethene, 1,1,1-trichloroethane, 1,2-dibromoethane, 1,1-dichloroethene, 1,2-dichloroethene (cis and trans isomers), vinyl chloride, 1,1-dichloroethane, 1,2-dichloroethane, methylene chloride, toluene, ethyl benzene, benzene and xylene.(3) Groundwater elevations in monitoring wells recorded as a distance from the elevation at the well head referenced to mean sea level based on United States Geological Survey datum.(4) Total alkalinity, fluoride and sulfate and total and dissolved concentrations of each of the following: arsenic, barium, cadmium, chromium, copper, lead, magnesium, mercury, potassium, selenium, silver and zinc.(5) 1,1,1,2-tetrachloroethane, 1,1,2,2-tetrachloroethane, 1,1,2-trichloroethane, 1,2,3-trichloropropane, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, 1,2-dichloropropane, 3-chloro-1-propene, 4-methyl-2-pentanone, bromomethane, carbon tetrachloride, chlorobenzene, chlorodibromomethane, chloroethane, chloromethane, cis-1,3-dichloropropene, trans-1,3-dichloropropene, dichlorodifluoromethane, methyl ethyl ketone, tri-bromomethane and trichlorofluoromethane.(6) Ten volatile organic compounds not otherwise identified in this section, based on those compounds showing the greatest apparent concentration from the peaks of a mass spectra of each sample. The ten compounds shall be identified but their concentration does not require measurement.(b) One year of data consistent with this section shall be taken prior to the disposal or storage of waste at the facility.(c) Monitoring wells under this section shall be designed, constructed and maintained under §§ 273.281-273.283 (relating to general requirements; number, location and depth of monitoring points; and standards for wells and casing of wells). Sampling and analysis shall be conducted in accordance with a plan approved by the Department under § 273.152(b) (relating to water quality monitoring plan).The provisions of this § 273.116 amended December 22, 2000, effective 12/23/2000, 30 Pa.B. 6685. This section cited in 25 Pa. Code § 273.111 (relating to general); 25 Pa. Code § 273.114 (relating to description of geology, soils and hydrology-general requirements); 25 Pa. Code § 273.152 (relating to water quality monitoring plan); 25 Pa. Code § 273.201 (relating to basic limitations); and 25 Pa. Code § 277.201 (relating to basic limitations).