Current through Register Vol. 54, No.43, October 26, 2024
Section 264a.97 - General groundwater monitoring requirementsIn addition to the requirements incorporated by reference:
(1) The owner or operator shall keep records of analyses and evaluations of groundwater quality and surface elevations, which shall be conducted quarterly, and flow rate and direction determinations, which shall be conducted annually. These evaluations and determinations shall be conducted as required under 40 CFR Part 264 , Subpart F (relating to releases from solid waste management units).(2) The owner or operator shall report the following information in writing to the Department: (i) During the first year when initial background concentrations are being established for the facility: concentrations or values of the parameters listed in 40 CFR 264.98(a) (relating to detection monitoring program) for an upgradient groundwater monitoring well within 15 days after completing a quarterly analysis and no later than 30 days after the end of a quarter.(ii) Quarterly after the first year: concentrations or values of the parameters in 40 CFR 264.98(a) and required under 40 CFR 264.97(g) (relating to detection monitoring program), for each groundwater monitoring well, along with the required evaluations for these parameters under 40 CFR 264.97(h), within 15 days after completing a quarterly analysis and no later than 30 days after the end of a quarter.(iii) Annually: concentrations or values of those parameters for each well which are specified by the facility's permit within 15 days of completing the annual analysis.(iv) Annually: those determinations for the groundwater flow rate and direction specified in 40 CFR 264.99(e) (relating to compliance monitoring).(3) The owner or operator shall report the groundwater quality required by paragraph (2) and 40 CFR 264.97 at a monitoring point established under 40 CFR 264.95 (relating to point of compliance) in a form necessary for the determination of statistically significant increases under 40 CFR 264.98 (relating to detection monitoring program).The provisions of this §264a.97 adopted December 13, 2002, effective 12/14/2002, 32 Pa.B. 6102.