Brighton Municipal Water Supply, IA
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2022-2024). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
About Brighton Municipal Water Supply
Brighton Municipal Water Supply serves about 600 people through 305 service connections, which makes it a small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Washington County, Iowa. EPA system ID: IA9209043; phone on file: 319-591-0442. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Brighton Municipal Water Supply's lead record
That is down 2 ppb from 4 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Brighton Municipal Water Supply is 4 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 2 ppb |
| 2021 | 4 ppb |
| 2018 | 2.5 ppb |
How Brighton Municipal Water Supply compares
Of the 1,066 Iowa systems with a lead result, the median latest reading is 1.4 ppb; 4 are over 15 ppb right now and 36 have gone over at some point. Brighton Municipal Water Supply's 2 ppb sits at the 63rd percentile in Iowa and the 71st nationally (higher means more lead).
Neighbouring systems
12 other systems share Washington County; 3 of them have a higher latest lead result than Brighton Municipal Water Supply. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Washington Water Department | 7,362 | 0 (not detected) |
| Kalona Water Dept | 2,630 | 1 ppb |
| Wellman Municipal Waterworks | 1,524 | 0 (not detected) |
| Riverside Water Supply | 1,060 | 0 (not detected) |
| Ainsworth Water Works | 511 | 0 (not detected) |
| Crawfordsville Water Supply | 277 | 0 (not detected) |
| West Chester Muni Wtr Supply | 144 | 4 ppb |
| Timberline Estates | 95 | 2 ppb |
| Linn Hollow Mhp Llc | 68 | 5.2 ppb |
| City Of Kalona - Southtown | 60 | 6 ppb |
Next steps for Brighton, IA
Test your own tap with a certified lab first-draw sample; Brighton, IA may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Brighton Municipal Water Supply 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. The lead result guide covers how utilities pick the homes they sample. Systems that went over once often dip back under; here is what that means.