Cedar Lake Water Works, IN
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 14.5 ppb (monitoring period 2025-2027). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Under the current 15 ppb rule this is not an exceedance, but it is above the 10 ppb action level that takes over in Nov 2027. Test your own tap; filter if your result shows lead.
Cedar Lake Water Works at a glance
Cedar Lake Water Works serves about 4,600 people through 2,983 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Lake County, Indiana. EPA system ID: IN5245047; phone on file: 219-880-7800. They can tell you what your service line is made of and whether they pay to replace it.
Cedar Lake Water Works's lead record
That is up 13.4 ppb from 1.1 ppb in the period ending 2024. The highest 90th-percentile result EPA holds for Cedar Lake Water Works is 14.5 ppb across 3 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2027 | 14.5 ppb over 10 |
| 2024 | 1.1 ppb |
| 2018 | 3.8 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. Cedar Lake Water Works's 14.5 ppb sits at the 99th percentile in Indiana and the 99th nationally (higher means more lead).
Other water systems in Lake County
27 other systems share Lake County; 0 of them have a higher latest lead result than Cedar Lake Water Works. 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 |
| Munster Water Company | 23,894 | 2 ppb |
| Griffith Water Department | 16,893 | 1.01 ppb |
| Dyer Water Department | 16,800 | 9.9 ppb |
Next steps for Cedar Lake, IN
Test your own tap with a certified lab first-draw sample; Cedar Lake, 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 Cedar Lake Water Works 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. See what changes at 10 ppb in 2027.