Public Water Systems (PWSs) that use surface water (SW) or groundwater under the direct influence of surface water (GWUDI) as source water must sample at a Source Water (SR) intake, Entry Points to the Distribution System (EPTDS), and Stage 2 Disinfection Byproduct Rule (DBPR) location points for:
Source Water (SR):
- Total Organic Carbon by SM 5310B
- Bromide by EPA 300.0
Entry Point to the Distribution System (EPTDS):
- Total Microcystins by ADDA ELISA EPA 546
- 7 Microcystins by EPA 544
- Anatoxin-a & Cylindrospermopsin by EPA 545
- 2 Metals: Germanium & Manganese by EPA 200.8
- 9 Pesticides and Pesticide Byproducts by EPA 525.3
- 3 Alcohols by EPA 541
- 3 Semi-Volatile Compounds by EPA 530
Stage 2 Disinfection Byproduct Rule (DBPR) location:
- 3 Haloacetic Compounds by EPA 552.3
Public Water Systems (PWSs) that use groundwater (GW) as source water must sample a Source Water (SR) intake, Entry Points to the Distribution System (EPTDS), and Distribution System with Maximum Residence Time (DSMRT) and/ or Stage 2 Disinfection Byproduct Rule (DBPR) location points for:
Source Water (SR):
- Total Organic Carbon by SM 5310B
- Bromide by EPA 300.0
Entry Point to the Distribution System (EPTDS):
- 2 Metals: Germanium & Manganese by EPA 200.8
- 9 Pesticides and Pesticide Byproducts by EPA 525.3
- 3 Alcohols by EPA 541
- 3 Semi-Volatile Compounds by EPA 530
Stage 2 Disinfection Byproduct Rule (DBPR) location:
- 3 Haloacetic Compounds by EPA 552.3