Section Env-Ws 382.25 - Compliance Calculations(a) The owner of a SW/GWUDISW system owner other than those meeting the criteria identified in Env-Ws 382.22 shall comply with requirements contained in Env-Ws 382.23.(b) A system owner shall calculate compliance quarterly.(c) The quarterly compliance period shall begin after the system owner has collected 12 months of data, by determining an annual average using the following method: (1) Determine actual monthly TOC percent removal, equal to: 1- (treated water TOC/source water TOC) x 100;
(2) Determine the required monthly TOC percent removal, from either Table 382-3 or, if a SW/GWUDISW, from Env-Ws 382.24;(3) Divide the value in (1), above, by the value in (2), above; and(4) Add together the results of (3), above, for the last 12 months and divide by 12.(d) If the value calculated in (c), above is less than 1.00, the system shall not be in compliance with the TOC percent removal requirements.(e) In any month that the system's treated or source water TOC level, measured according to Env-Ws 382.06, is less than 2.0 mg/L, the system owner may assign a monthly value of 1.0, in lieu of the value calculated in (c)(3) above, when calculating compliance under the provisions of (a) and (b) above.(f) In any month that a system owner practicing softening removes at least 10 mg/L of magnesium hardness, as CaCO3, the system owner may assign a monthly value of 1.0, in lieu of the value calculated in (c)(3)above, when calculating compliance under the provisions of (a) above.(g) In any month that the system's source water SUVA, measured according to Env-Ws 382.06(i)(4) prior to anytreatment is less than or equal to 2.0 L/mg-m, the system owner may assign a monthly value of 1.0, in lieu of the value calculated in (c)(3) above, when calculating compliance under the provisions of (a) and (b) above.(h) In any month that the system's finished water SUVA, measured according to Env-Ws 382.06(i)(4), is less than or equal to 2.0 L/mg-m, the system owner may assign a monthly value of 1.0, in lieu of the value calculated in (c)(3) above, when calculating compliance under the provisions of (a) and (b) above.(i) In any month that a system owner practicing enhanced softening lowers alkalinity below 60 mg/L, as CaCO3, the system owner may assign a monthly value of 1.0, in lieu of the value calculated in (c)(3) above, when calculating compliance under the provisions of (a) and (b) above.N.H. Code Admin. R. Env-Ws 382.25
(See third Revision Note at chapter heading Env-Ws 300); #7735, eff 8-2-02; amd by #8351, eff 5-14-05