Munster Water Company, IN
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2021-2023). 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.
Munster Water Company at a glance
Munster Water Company serves about 23,894 people through 8,572 service connections, which makes it a large system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws surface water, in Lake County, Indiana. EPA system ID: IN5245031; phone on file: 219-712-6356. They can tell you what your service line is made of and whether they pay to replace it.
Munster Water Company's lead record
Against the period ending 2020 (3 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Munster Water Company is 4.9 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 2 ppb |
| 2020 | 3 ppb |
| 2017 | 4.9 ppb |
Where this result ranks
Of the 687 Indiana systems with a lead result, the median latest reading is 1.31 ppb; 6 are over 15 ppb right now and 36 have gone over at some point. Munster Water Company's 2 ppb sits at the 67th percentile in Indiana and the 73rd nationally (higher means more lead).
Nearby utilities
27 other systems share Lake County; 10 of them have a higher latest lead result than Munster Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Indiana American Water - Northwest | 210,510 | 3 ppb |
| Hammond Water Works Department | 78,384 | 3 ppb |
| Crown Point Water Works | 30,000 | 0.7 ppb |
| Schererville Water Department | 30,000 | 1 ppb |
| East Chicago Water Works | 26,370 | 8 ppb |
| St. John Municipal Water Utility | 25,700 | 2.9 ppb |
| Highland Water Works | 23,984 | 2.4 ppb |
| Griffith Water Department | 16,893 | 1.01 ppb |
| Dyer Water Department | 16,800 | 9.9 ppb |
| Indiana American Water - Lowell | 11,908 | 1 ppb |
What to do in your house
Test your own tap with a certified lab first-draw sample; Munster, IN 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 Munster Water Company 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. What a 90th-percentile result does and does not tell you: how to read a lead result. Size matters more than most people expect: small vs large water systems.