33 states, each on its own MOR form
| State | Tier | Forms | ||
|---|---|---|---|---|
| ALAlabama | ADEM — Water Supply Program | Fill + archive | Monthly | 1 |
| AZArizona | ADEQ — Water Quality Division | Fill + archive | Quarterly, Monthly | 2 |
| CACalifornia | SWRCB — Division of Drinking Water (DDW) | Fill + archive | Quarterly | 1 |
| CTConnecticut | Connecticut DPH — Drinking Water Section | Fill + archive | Monthly | 2 |
| FLFlorida | Florida DEP — Source & Drinking Water Program | Fill + archive | Monthly | 5 |
| GAGeorgia | Georgia EPD — Watershed Protection Branch, Drinking Water Program | Fill + archive | Monthly | 3 |
| IAIowa | Iowa DNR — Water Supply Section | Fill + archive | Monthly | 5 |
| ILIllinois | Illinois EPA — Bureau of Water, Division of Public Water Supplies, Field Operations | Fill + archive | Monthly | 5 |
| KSKansas | KDHE — Bureau of Water, Public Water Supply Section, Topeka | Fill + archive | Monthly | 2 |
| KYKentucky | Kentucky EEC / DEP — Division of Water, Drinking Water Branch | Fill + archive | Monthly | 1 |
| LALouisiana | LDH Office of Public Health — Safe Drinking Water Program / Engineering Services | Fill + archive | Monthly | 7 |
| MAMassachusetts | MassDEP — Drinking Water Program | Fill + archive | Monthly | 4 |
| MDMaryland | MDE — Water Supply Program | Computed | Monthly, Quarterly | 2 |
| MEMaine | Maine CDC Drinking Water Program (DHHS) | Fill + archive | Monthly | 1 |
| MNMinnesota | MDH — Drinking Water Protection, Community Public Water Supply Unit | Fill + archive | Monthly | 3 |
| MOMissouri | Missouri DNR — Public Drinking Water Branch | Fill + archive | Monthly | 1 |
| MTMontana | Montana DEQ — Water Quality Division, Public Water Supply Section | Fill + archive | Retained record | 1 |
| NCNorth Carolina | NCDEQ — Division of Water Resources, Public Water Supply Section | Fill + archive | Monthly | 6 |
| NDNorth Dakota | NDDEQ — Division of Municipal Facilities, Drinking Water Program | Fill + archive | Monthly | 7 |
| NJNew Jersey | NJDEP — Division of Water Supply and Geoscience, Bureau of Safe Drinking Water | Fill + archive | Monthly | 2 |
| NMNew Mexico | NMED — Drinking Water Bureau | Fill + archive | Monthly | 1 |
| NVNevada | NDEP — Bureau of Safe Drinking Water | Computed | Quarterly | 1 |
| NYNew York | NYSDOH — Bureau of Water Supply Protection | Fill + archive | Monthly | 4 |
| OHOhio | Ohio EPA — Division of Drinking and Ground Waters | Fill + archive | Monthly | 1 |
| OROregon | Oregon Health Authority — Drinking Water Services | Fill + archive | Monthly | 1 |
| PAPennsylvania | PA DEP — Bureau of Safe Drinking Water | Fill + archive | Retained record, Monthly | 3 |
| RIRhode Island | RIDOH — Center for Drinking Water Quality | Fill + archive | Monthly | 1 |
| TXTexas | TCEQ — Water Supply Division, Public Drinking Water Section | Fill + archive | Monthly, Quarterly, Retained record | 3 |
| UTUtah | Utah DEQ — Division of Drinking Water | Fill + archive | Quarterly, Monthly | 3 |
| VAVirginia | VDH — Office of Drinking Water | Fill + archive | Monthly | 1 |
| WAWashington | Washington DOH — Office of Drinking Water | Fill + archive | Monthly | 1 |
| WIWisconsin | Wisconsin DNR — Drinking Water and Groundwater | Fill + archive | Monthly | 1 |
| WVWest Virginia | WV DoH Bureau for Public Health — OEHS, Environmental Engineering Division | Fill + archive | Monthly | 6 |
Not yet carriedAlaska, Delaware, New Hampshire, Oklahoma, Tennessee