Walnut Grove Mhp, VA
Exceeded the action level in the past
Latest 90th-percentile lead: reported as 0 (not detected) (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. The latest result is under the action level, but this system has gone over 15 ppb before. Lead comes from pipes, not the source water, so a home with a lead service line can still be exposed. Test your own tap.
Walnut Grove Mhp at a glance
Walnut Grove Mhp serves about 51 people through 17 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in King George County, Virginia. EPA system ID: VA6099590; phone on file: 540-845-2552. They can tell you what your service line is made of and whether they pay to replace it.
Walnut Grove Mhp's lead record
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Walnut Grove Mhp is 62.5 ppb across 5 monitoring periods, 1 of them over the 15 ppb action level.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 0 (not detected) |
| 2025 | 0 (not detected) |
| 2024 | 62.5 ppb over 15 |
| 2021 | 0 (not detected) |
| 2018 | 1.19 ppb |
How Walnut Grove Mhp compares
Of the 996 Virginia systems with a lead result, the median latest reading is 0 ppb; 3 are over 15 ppb right now and 59 have gone over at some point. Walnut Grove Mhp's reported as 0 (not detected) sits at the 5th percentile in Virginia and the 4th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Other water systems in King George County
10 other systems share King George County; 2 of them have a higher latest lead result than Walnut Grove Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Naval Support Facility, Dahlgren | 11,000 | 0 (not detected) |
| Presidential Lakes, Sect. 14 | 951 | 0 (not detected) |
| Pineview Mhp 1-3 | 400 | 0 (not detected) |
| Mcdaniel Mobile Home Park | 147 | 0 (not detected) |
| Hanover Mhp | 146 | 4.94 ppb |
| Chestnut Hill Mobile Home Park | 65 | 0 (not detected) |
| Holiday Inn Mhp | 50 | 0 (not detected) |
| American Historyland Mhp | 40 | 0 (not detected) |
| Eagle Bay | 38 | 4.03 ppb |
| Princess Anne 301 | 30 | 0 (not detected) |
Next steps for Dahlgren, VA
Test your own tap with a certified lab first-draw sample; Dahlgren, VA 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 Walnut Grove Mhp 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. Why an old exceedance still matters: over the limit before, under it now.