Laserfiche WebLink
Monitoring and Reporting Requirements for Public Water Systems <br /> Updated Domestic Water Quality and Monitoring Regulations <br /> Division of Drinking Water and Environmental Management, Drinking Water Field Operations Branch <br /> November 1994 <br /> COMMUNITY REQUIREMENT FREQUENCY SECTION <br /> Bacteriological Based on the greatest of either# "service 64423(a)(1) <br /> connections or population <br /> • 10 Chemicals GW- Every 3 years; SW-Annually 64432(b)(1) <br /> Nitrate GW-Annually; 64432.1(a) <br /> Quarterly for 1 yr if>/= 1/2 MCL 64432.1(a)(2) <br /> SW- Quarterly 64432.1(a)( <br /> Annual if< 1/2 MCL (w/Dept. OK) 64432.1(a)(3) <br /> Nitrite Quarterly for 1 yr if>/= 1/2 MCL, then annual 64432.1(b)(2) <br /> Every 3 years if< 1/2 MCL 64432.1(b)(3) <br /> Asbestos GW- Every 9 years (if vulnerable) 64432.2(a)(1) <br /> SW- Every 9 years (mandatory) 64432.2(a)(2) <br /> Dist. System - Every 9 years (if vulnerable) 64432.2(a)(3) <br /> Secondary MCLs GW- Every 3 years; SW-Annually 64449(c)(1) <br /> Bicarbonate,carbonate and hydroxide alkalinity, GW- Every 3 years; SW-Annually 64449(c)(2) <br /> calcium, Fe,Mg, Mn, sodium, and total hardness <br /> Radiochemicals (GA & Ur) Four quarters every 4 years _ 64441(a) & (b) _ <br /> VOCs GW- Every 3 years; SW-Annually 64445.1(b)(1) <br /> SOCs Twice every 3 years if> 3300 pop 64445.1(a)(2) <br /> Once every 3 years if< 3300 pop 64445.1(a)(3) <br /> Unreg. Organics -Table 64450-A GW- Once only; SW-4 quarterly for 1 yr 64450.1(a)(1) & (2) <br /> (No waivers) <br /> Unreg. Organics-Table 64450-B GW- Once only; SW-4 quarterly for 1 yr 64450.1(a)(1) & (2) <br /> (Waivers available) 64450.1(b) <br /> Unreg. Organics -Table 64450-C 4 Consecutive quarters (Waivers available) 64450.1(b) <br /> Exemptions available for systems serving < 150 connections 64450.1 (d) <br />