Greenfield S/D, NC
Lead detected, under the action levels
Latest 90th-percentile lead: 1.7 ppb (monitoring period 2023-2025). 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 Greenfield S/D
Greenfield S/D serves about 193 people through 76 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Catawba County, North Carolina. EPA system ID: NC0118273; phone on file: 919-653-6999. Call that number and ask whether your address has a lead, galvanized or unknown service line.
Every lead result on file
That is down 1.94 ppb from 3.64 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Greenfield S/D is 3.64 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.7 ppb |
| 2022 | 3.64 ppb |
| 2016 | 0 (not detected) |
Where this result ranks
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. Greenfield S/D's 1.7 ppb sits at the 83rd percentile in North Carolina and the 66th nationally (higher means more lead).
Neighbouring systems
78 other systems share Catawba County; 13 of them have a higher latest lead result than Greenfield S/D. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Hickory City Of | 71,393 | 0 (not detected) |
| Newton, City Of | 18,407 | 0 (not detected) |
| Conover, City Of | 15,347 | 0 (not detected) |
| Maiden, Town Of | 5,563 | 0 (not detected) |
| Longview, Town Of | 5,244 | 0 (not detected) |
| Southeast Catawba County | 5,080 | 0 (not detected) |
| Claremont, City Of | 2,645 | 0 (not detected) |
| Catawba, Town Of | 1,617 | 0 (not detected) |
| Cross Country Campground Inc | 627 | 0 (not detected) |
| Pebble Bay | 587 | 10 ppb |
Next steps for Cary, NC
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 Greenfield S/D whether it covers that cost before hiring anyone - many utilities now do. Its latest copper 90th percentile is 1920 ppb (copper action level 1,300 ppb).
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. Systems that went over once often dip back under; here is what that means.