Section Env-Or 703.18 - Assessment Monitoring If required under Env-Or 703.17(d)(2), the permittee shall conduct assessment monitoring as follows:
(a) The permittee shall sample the groundwater for all regulated contaminants listed in the table of AGQS in in Env-Or 603.03 and the additional parameters specified in Env-Or 703.06(c)(2) within 60 days of notifying the department of the exceedance in the detection monitoring;(b) Based on the results of the sampling required by (a), above, the permittee shall consult with the department to determine the parameters and schedule for subsequent groundwater sampling;(c) If sampling and analysis at a specific well indicates that concentrations of all regulated contaminants in the assessment monitoring are at or below background values for 2 consecutive sampling events, the permittee shall notify the department of this finding and return to detection monitoring at that well;(d) The permittee shall submit the results of the assessment monitoring to the department within 45 days of the date of each round of sampling;(e) The permittee shall establish a background concentration for each regulated contaminant discovered in the assessment monitoring for which a background concentration has not already been established for purposes of detection monitoring; and(f) If the concentration of a regulated contaminant detected by assessment monitoring is above the background value but below the ambient groundwater quality standard established under Env-Or 603.03, the permittee shall: (1) Notify the department within 10 days after receiving results; and(2) Submit a corrective action plan and implementation schedule in accordance with Env-Or 703.19 to the department within 30 days.N.H. Admin. Code § Env-Or 703.18
Derived From Volume XXXV Number 23, Filed June 11, 2015 , Proposed by #10832, Effective 6/1/2015, Expires6/1/2025.