Swan Lake Culinary Water Company, ID
Lead detected, under the action levels
Latest 90th-percentile lead: 2 ppb (monitoring period 2025-2025). 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 Swan Lake Culinary Water Company
Swan Lake Culinary Water Company serves about 29 people through 15 service connections, which makes it a very small system under EPA's size classes. It is owned by a local government (city, town, county or district) and draws groundwater, in Bannock County, Idaho. EPA system ID: ID6030052; phone on file: 208-242-6451. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Swan Lake Culinary Water Company's lead record
Against the period ending 2024 (1 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Swan Lake Culinary Water Company is 2 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 2 ppb |
| 2024 | 1 ppb |
Where this result ranks
Of the 763 Idaho systems with a lead result, the median latest reading is 1 ppb; 3 are over 15 ppb right now and 46 have gone over at some point. Swan Lake Culinary Water Company's 2 ppb sits at the 59th percentile in Idaho and the 69th nationally (higher means more lead).
Neighbouring systems
22 other systems share Bannock County; 7 of them have a higher latest lead result than Swan Lake Culinary Water Company. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Pocatello City Of | 58,231 | 5 ppb |
| Chubbuck City Of | 15,842 | 2 ppb |
| Mccammon City Of | 800 | 2 ppb |
| Inkom City Of | 792 | 1 ppb |
| Downey City Of | 586 | 2 ppb |
| Lava Hot Springs City Of | 386 | 2 ppb |
| Arimo City Of | 368 | 14 ppb |
| Tyhee And S And N Estates Water Assn | 300 | 2 ppb |
| Laceys Vista Acres Water Corp | 200 | 9 ppb |
| Caribou Acres | 150 | 5 ppb |
Your move
Test your own tap with a certified lab first-draw sample; Swan Lake, ID 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 Swan Lake Culinary 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. Why sampled homes are the worst-case ones is in the guide to reading the number. The action level is dropping - the 10 ppb rule from 2027.