Riverside Mhp, NC
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2026-2028). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. The latest 90th-percentile result was reported as 0 (not detected at the lab's limit). That says the sampled homes were low, not that your home has no lead service line. Check your utility's service line inventory for your address.
Riverside Mhp at a glance
Riverside Mhp serves about 399 people through 157 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Mcdowell County, North Carolina. EPA system ID: NC0156135; phone on file: 828-652-3575. They can tell you what your service line is made of and whether they pay to replace it.
Lead results over time
Against the period ending 2025 (0 ppb) the latest result is about the same. The highest 90th-percentile result EPA holds for Riverside Mhp is 0 ppb across 2 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2028 | 0 (not detected) |
| 2025 | 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. Riverside Mhp's reported as 0 (not detected) sits at the 48th percentile in North Carolina and the 21st nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Neighbouring systems
20 other systems share Mcdowell County; 3 of them have a higher latest lead result than Riverside Mhp. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Marion, City Of | 9,362 | 0 (not detected) |
| Old Fort, Town Of | 1,700 | 0 (not detected) |
| Mcdowell Co--Nebo | 902 | 0 (not detected) |
| Black Bear Development | 343 | 0 (not detected) |
| Marion Moose Lodge | 320 | 0 (not detected) |
| Woodlawn Heights Water System | 315 | 0 (not detected) |
| Little Switzerland Comm Assoc | 300 | 0 (not detected) |
| Deer Park Health & Rehab. | 290 | 0 (not detected) |
| Marion Moose Lodge-Mountain | 160 | 0 (not detected) |
| Linville Falls Club | 127 | 0 (not detected) |
What to do in your house
Look up your address in Riverside Mhp's service line inventory. If it says lead, galvanized or unknown, test your tap. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Riverside 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. What a 90th-percentile result does and does not tell you: how to read a lead result. A zero today does not rule out a jump later - the rules are tightening in 2027.