Section Env-Dw 703.01 - MCLs and MCLGs for Radionuclide Contaminants(a) For a community water system, the MCLs and MCLGs for radionuclide contaminants shall be as stated in Table 703-1, below: Table 703-1: MCLs and MCLGs for Radionuclide Contaminants
Radionuclide Contaminant | MCL | MCLG |
Compliance Gross Alpha | 15 pCi/L | 0 pCi/L |
Radium 226 + 228 | 5 pCi/L | 0 pCi/L |
Uranium | 30 µg/L | 0 µg/L |
Beta Particle and Photon Radioactivity | 4 mrem/year | 0 mrem/year |
(b) Compliance with radionuclide contaminant MCLs shall be: (1) Calculated as specified in Env-Dw 710; and(2) Based on the monitoring as specified in Env-Dw 707, Env-Dw 708, and Env-Dw 710.(c) The combined radium-226 and radium-228 value shall be determined by the addition of the results of the analysis for radium-226 and the analysis for radium-228, provided both analyses are performed on samples collected on the same day.N.H. Code Admin. R. Env-Dw 703.01
(See Revision Note #1 at chapter heading for Env-Dw 700) #9699, eff 5-1-10
Amended by Volume XXXVIII Number 50, Filed December 13, 2018, Proposed by #12665, Effective 1/1/2019, Expires 1/1/2029.Amended byVolume XXXIX Number 28, Filed July 11, 2019, Proposed by #12819, Effective 6/28/2019, Expires 6/28/2029.