What was found in Quincy's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 8680 µg/L 87% of the EPA limit 10000 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2019
Highest in the city: 10500 µg/L — GOLDEN VALLEY WATER ASSN · 138 people · 2019 | 11/11 | SYR4 |
| Nitrate-Nitrite | 8631 µg/L 86% of the EPA limit 10000 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2019
Highest in the city: 10455 µg/L — GOLDEN VALLEY WATER ASSN · 138 people · 2019 | 11/11 | SYR4 |
| Fluoride | 420 µg/L 11% of the EPA limit 4000 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2018
Highest in the city: 847 µg/L — SOAP LAKE WATER DEPT · 2,399 people · 2019 | 11/11 | SYR4 |
| Barium | 12.28 µg/L 0.6% of the EPA limit 2000 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2018
Highest in the city: 81.08 µg/L — FORDAIR WATER CO-OP INC · 43 people · 2019 | 11/11 | SYR4 |
| Copper | 0.6900 µg/L 0.1% of the EPA limit 1300 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2018
Highest in the city: 20.228 µg/L — WILSON CREEK WATER DEPT TOWN OF · 386 people · 2019 | 11/11 | SYR4 |
| TTHM | 11.501 µg/L 14% of the EPA limit 80 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2019
Highest in the city: 17.998 µg/L — WILSON CREEK WATER DEPT TOWN OF · 386 people · 2017 | 4/11 | SYR4 |
| Arsenic | 1.18 µg/L 12% of the EPA limit 10 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2018
Highest in the city: 10.638 µg/L — SUNSERRA AT CRESCENT BAR · 1,000 people · 2016 | 11/11 | SYR4 |
| Bromoform | 9.032 µg/L No EPA limit set Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2019 | 4/11 | SYR4 |
| Dibromochloromethane | 2.13 µg/L No EPA limit set Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2019
Highest in the city: 6.953 µg/L — WILSON CREEK WATER DEPT TOWN OF · 386 people · 2019 | 4/11 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 5.8 µg/L 97% of the EPA limit 6 µg/L Highest in the city: SUNLAND ESTATES HOMEOWNERS ASSN · 1,480 people · 2019 | 1/11 | SYR4 |
| Bromodichloromethane | 0.6520 µg/L No EPA limit set Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2019
Highest in the city: 3.866 µg/L — WILSON CREEK WATER DEPT TOWN OF · 386 people · 2019 | 3/11 | SYR4 |
| Dibromoacetic Acid | 3.44 µg/L No EPA limit set Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2019 | 3/11 | SYR4 |
| Total Haloacetic Acids (HAA5) | 3.44 µg/L 5.7% of the EPA limit 60 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2019 | 3/11 | SYR4 |
| Lead | 0.2400 µg/L 1.6% of the EPA limit 15 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2018
Highest in the city: 3.0095 µg/L — SOAP LAKE WATER DEPT · 2,399 people · 2019 | 9/11 | SYR4 |
| Selenium | 2.1 µg/L 4.2% of the EPA limit 50 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2018 | 11/11 | SYR4 |
| Thallium, Total | 0.3500 µg/L 18% of the EPA limit 2 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2018
Highest in the city: 1.7 µg/L — FORDAIR WATER CO-OP INC · 43 people · 2019 | 10/11 | SYR4 |
| Chromium | 0.3800 µg/L 0.4% of the EPA limit 100 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2018
Highest in the city: 1.63 µg/L — CRESCENT VIEW CONDOMINIUM OWNERS · 243 people · 2019 | 9/11 | SYR4 |
| 1,2-Dichloropropane | 1.48 µg/L 30% of the EPA limit 5 µg/L Highest in the city: LAKEVIEW PARK WATER ASSN · 1,259 people · 2019 | 1/11 | SYR4 |
| Chloroform | 1.43 µg/L No EPA limit set Highest in the city: WILSON CREEK WATER DEPT TOWN OF · 386 people · 2019 | 2/11 | SYR4 |
| Di(2-ethylhexyl) Adipate | 1.29 µg/L 0.3% of the EPA limit 400 µg/L Highest in the city: SUNLAND ESTATES HOMEOWNERS ASSN · 1,480 people · 2019 | 1/11 | SYR4 |
| Toluene | 1.28 µg/L 0.1% of the EPA limit 1000 µg/L Highest in the city: SUNLAND ESTATES HOMEOWNERS ASSN · 1,480 people · 2018 | 1/11 | SYR4 |
| Antimony, Total | 0.1100 µg/L 1.8% of the EPA limit 6 µg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2018
Highest in the city: 0.1800 µg/L — LAKEVIEW PARK WATER ASSN · 1,259 people · 2019 | 3/11 | SYR4 |
| Lead | 0.0025 mg/L 17% of the EPA limit 0.0150 mg/L Main supplier: QUINCY WATER DEPARTMENT CITY OF · 8,415 people · 2025 | 11/11 | LCR |
Each bar shows the measured level as a share of the EPA limit: green is
well under, amber is close to it, red is over. For lead and copper the
limit applies to exactly the 90th-percentile figure shown, so red there
means a real exceedance. For everything else the limit applies to a
running annual average while the figure is the 95th percentile of the
system's samples — over 100% is worth reading, but is not by itself a
violation.
Formal violations are listed separately.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Quincy
| Supplier | Population served |
|---|---|
| QUINCY WATER DEPARTMENT CITY OF | 8,415 |
| SOAP LAKE WATER DEPT | 2,399 |
| SUNLAND ESTATES HOMEOWNERS ASSN | 1,480 |
| LAKEVIEW PARK WATER ASSN | 1,259 |
| WEILER-MARTIN TRACTS WATER ASSN | 1,163 |
| SUNSERRA AT CRESCENT BAR | 1,000 |
| WILSON CREEK WATER DEPT TOWN OF | 386 |
| CRESCENT VIEW CONDOMINIUM OWNERS | 243 |
| The Village at Colockum Ridge | 144 |
| GOLDEN VALLEY WATER ASSN | 138 |
| FORDAIR WATER CO-OP INC | 43 |
Frequently asked questions about Quincy tap water
Is Quincy tap water safe to drink?
EPA testing detected 23 contaminants in the water serving Quincy. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Quincy?
11 public water suppliers report drinking-water monitoring for Quincy, Washington to the EPA. Each is listed above with its population served.
What contaminants are in Quincy's water?
The contaminants EPA monitoring detected in Quincy include Nitrate, Nitrate-Nitrite, Fluoride, Barium, Copper. The full list, with the level at the main supplier and the data source, is in the table above.
Where does this data come from?
Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.