Brookings-Deuel Rural Water System, SD
Above the new 10 ppb level coming in 2027
Latest 90th-percentile lead: 13 ppb (monitoring period 2024-2024). 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.
About Brookings-Deuel Rural Water System
Brookings-Deuel Rural Water System serves about 6,200 people through 2,846 service connections, which makes it a medium-sized system under EPA's size classes. It is privately owned and draws groundwater, in Brookings,Deuel County, South Dakota. EPA system ID: SD4600430; phone on file: 6057944201. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Brookings-Deuel Rural Water System's lead record
That is up 6 ppb from 7 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Brookings-Deuel Rural Water System is 13 ppb across 3 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 13 ppb over 10 |
| 2021 | 7 ppb |
| 2018 | 7 ppb |
Where this result ranks
Of the 458 South Dakota systems with a lead result, the median latest reading is 2 ppb; 0 are over 15 ppb right now and 6 have gone over at some point. Brookings-Deuel Rural Water System's 13 ppb sits at the 99th percentile in South Dakota and the 98th nationally (higher means more lead).
Your move
Test your own tap with a certified lab first-draw sample; Toronto, SD 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 Brookings-Deuel Rural Water System 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. This system is in the band the 2027 10 ppb rule changes.