Shadow Oaks S/D, NC
Lead detected, under the action levels
Latest 90th-percentile lead: 3 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 Shadow Oaks S/D
Shadow Oaks S/D serves about 318 people through 125 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Gaston County, North Carolina. EPA system ID: NC0136358; phone on file: 919-653-6999. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is down 1.6 ppb from 4.6 ppb in the period ending 2025. The highest 90th-percentile result EPA holds for Shadow Oaks S/D is 6.11 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 3 ppb |
| 2025 | 4.6 ppb |
| 2025 | 0 (not detected) |
| 2022 | 0 (not detected) |
| 2016 | 6.11 ppb |
Against other North Carolina systems
Of the 1,925 North Carolina systems with a lead result, the median latest reading is 0 ppb; 5 are over 15 ppb right now and 75 have gone over at some point. Shadow Oaks S/D's 3 ppb sits at the 88th percentile in North Carolina and the 82nd nationally (higher means more lead).
Nearby utilities
134 other systems share Gaston County; 15 of them have a higher latest lead result than Shadow Oaks S/D. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Two Rivers Utilities | 96,714 | 0 (not detected) |
| Mount Holly, City Of | 19,200 | 2.05 ppb |
| Belmont, City Of | 17,477 | 0 (not detected) |
| Dallas, Town Of | 8,212 | 0 (not detected) |
| Cherryville, City Of | 6,353 | 0 (not detected) |
| Stanley, Town Of | 5,750 | 2 ppb |
| Bessemer City, City Of | 5,730 | 0 (not detected) |
| Ranlo, Town Of | 4,511 | 0 (not detected) |
| Lowell, City Of | 3,837 | 0 (not detected) |
| Belmont Abbey College | 1,325 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Cary, NC 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 Shadow Oaks S/D 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.