Capital Hill Mobile Home Park, WI
Lead detected, under the action levels
Latest 90th-percentile lead: 3.85 ppb (monitoring period 2021-2021). 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 Capital Hill Mobile Home Park
Capital Hill Mobile Home Park serves about 36 people through 22 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Columbia County, Wisconsin. EPA system ID: WI1110107. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is up 2.05 ppb from 1.8 ppb in the period ending 2018. The highest 90th-percentile result EPA holds for Capital Hill Mobile Home Park is 3.85 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2021 | 3.85 ppb |
| 2018 | 1.8 ppb |
Against other Wisconsin systems
Of the 947 Wisconsin systems with a lead result, the median latest reading is 1.33 ppb; 6 are over 15 ppb right now and 71 have gone over at some point. Capital Hill Mobile Home Park's 3.85 ppb sits at the 83rd percentile in Wisconsin and the 86th nationally (higher means more lead).
Neighbouring systems
22 other systems share Columbia County; 5 of them have a higher latest lead result than Capital Hill Mobile Home Park. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Portage Waterworks | 10,437 | 6.2 ppb |
| Columbus Utilities | 5,173 | 8.88 ppb |
| Wisconsin Dells Waterworks | 3,232 | 1.7 ppb |
| Lodi Waterworks | 3,146 | 18 ppb |
| Poynette Waterworks | 2,520 | 3.05 ppb |
| Pardeeville Waterworks | 2,151 | 1.7 ppb |
| Harmony Grove San Dist | 1,950 | 3.2 ppb |
| Randolph Water Dept | 1,800 | 1.3 ppb |
| Fall River Waterworks | 1,793 | 0.93 ppb |
| Rio Waterworks | 1,095 | 1.4 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Lodi, WI 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 Capital Hill Mobile Home Park 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. The action level is dropping - the 10 ppb rule from 2027.