Pine Cliff Estates, SD
Lead detected, under the action levels
Latest 90th-percentile lead: 5 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. 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.
Pine Cliff Estates at a glance
Pine Cliff Estates serves about 180 people through 73 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Pennington County, South Dakota. EPA system ID: SD4600270; phone on file: 6057864366. They can tell you what your service line is made of and whether they pay to replace it.
Pine Cliff Estates's lead record
That is down 8 ppb from 13 ppb in the period ending 2021. The highest 90th-percentile result EPA holds for Pine Cliff Estates is 13 ppb across 3 monitoring periods, none of them over 15 ppb (1 over 10 ppb).
| Period ending | 90th-percentile lead |
|---|---|
| 2024 | 5 ppb |
| 2021 | 13 ppb over 10 |
| 2018 | 7 ppb |
Against other South Dakota systems
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. Pine Cliff Estates's 5 ppb sits at the 89th percentile in South Dakota and the 91st nationally (higher means more lead).
Other water systems in Pennington County
64 other systems share Pennington County; 4 of them have a higher latest lead result than Pine Cliff Estates. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Rapid City | 72,009 | 6 ppb |
| Box Elder | 14,000 | 2 ppb |
| Rapid Valley Sanitary District | 11,408 | 3 ppb |
| Ellsworth Afb | 9,100 | 1 ppb |
| Colonial Pine Hills Sanitary Distric | 1,200 | 1 ppb |
| Chapel Lane Water Company | 1,200 | 2 ppb |
| Hill City | 872 | 1 ppb |
| Wall | 699 | 1 ppb |
| New Underwood | 679 | 1 ppb |
| Hisega Meadows Water Inc | 493 | 1 ppb |
Next steps for Black Hawk, SD
Test your own tap with a certified lab first-draw sample; Black Hawk, 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 Pine Cliff Estates 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. Systems that went over once often dip back under; here is what that means.