Northwest Rural Water District, WY
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
About Northwest Rural Water District
Northwest Rural Water District serves about 7,330 people through 3,084 service connections, which makes it a medium-sized system under EPA's size classes. It is under mixed public and private ownership and draws surface water, in Park County, Wyoming. EPA system ID: WY5601254; phone on file: 307-527-4426. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Northwest Rural Water District's lead record
Against the period ending 2022 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Northwest Rural Water District is 3 ppb across 4 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2019 | 0 (not detected) |
| 2016 | 3 ppb |
How Northwest Rural Water District compares
Of the 311 Wyoming systems with a lead result, the median latest reading is 1 ppb; 0 are over 15 ppb right now and 16 have gone over at some point. Northwest Rural Water District's reported as 0 (not detected) sits at the 30th percentile in Wyoming and the 36th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
10 other systems share Park County; 6 of them have a higher latest lead result than Northwest Rural Water District. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Cody, City Of | 10,224 | 0 (not detected) |
| Powell, City Of | 6,310 | 2 ppb |
| Ynp-Mammoth Hot Springs | 2,600 | 0 (not detected) |
| Green Acres Mobile Home Park | 375 | 1 ppb |
| Meeteetse, Town Of | 327 | 2 ppb |
| Jubys Mobile Home Park | 300 | 2 ppb |
| Rivers Bend Trailer Court | 96 | 0 (not detected) |
| Copperleaf Water System | 42 | 0 (not detected) |
| Big Valley & Crossed Arrows Imp Dist | 35 | 1 ppb |
| Shoshone Municipal Pipeline | 25 | 1 ppb |
Your move
Look up your address in Northwest Rural Water District's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Northwest Rural Water District whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. Why sampled homes are the worst-case ones is in the guide to reading the number. A zero today does not rule out a jump later - the rules are tightening in 2027.