North Slope Estates Property, WA
Lead reported as not detected
Latest 90th-percentile lead: reported as 0 (not detected) (monitoring period 2021-2023). 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.
About North Slope Estates Property
North Slope Estates Property serves about 97 people through 30 service connections, which makes it a very small system under EPA's size classes. It is privately owned and draws groundwater, in Franklin County, Washington. EPA system ID: WA5310761. Ask the utility on your bill for your address in their service line inventory.
Lead results over time
That is down 3.5 ppb from 3.5 ppb in the period ending 2020. The highest 90th-percentile result EPA holds for North Slope Estates Property is 3.5 ppb across 3 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2023 | 0 (not detected) |
| 2020 | 3.5 ppb |
| 2017 | 1 ppb |
Against other Washington systems
Of the 2,218 Washington systems with a lead result, the median latest reading is 1 ppb; 18 are over 15 ppb right now and 62 have gone over at some point. North Slope Estates Property's reported as 0 (not detected) sits at the 14th percentile in Washington and the 9th nationally (higher means more lead). Systems reporting 0 tie at the bottom, so the rank mostly reflects size among them.
Nearby utilities
30 other systems share Franklin County; 10 of them have a higher latest lead result than North Slope Estates Property. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Pasco Water Department | 115,102 | 1.9 ppb |
| Connell City Of | 5,150 | 1 ppb |
| Basin City Water Sewer District | 1,740 | 0 (not detected) |
| Mesa Water Department | 495 | 4.5 ppb |
| White Bluff Water Association | 386 | 0.2 ppb |
| Ringold Domestic Water Corp | 340 | 0 (not detected) |
| West Mesa Domestic Water Assn | 316 | 0 (not detected) |
| Kahlotus City Of | 262 | 0 (not detected) |
| Cypress Country Estates | 253 | 0 (not detected) |
| Clark Addition Water System | 189 | 0 (not detected) |
Next steps for Pasco, WA
Look up your address in North Slope Estates Property'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 North Slope Estates Property 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. Small systems behave differently: why small systems go over more often.