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Updated 2026-09-16
County water report

Douglas County Water Quality

Douglas County, Nebraska: one city report built from EPA and utility records. A county has many suppliers; each city shows the system that serves it.

Find my systemOpen on the mapPrivate wells in Douglas County
Across the county's systems

Highest result for each contaminant

One row per contaminant: the highest result any system in the county reported, against its limit. Open a row for the systems behind it.

LithiumMETROPOLITAN UTILITIES DISTRICT10 µg/L EPA health reference level (screening, not a legal limit) · US EPA102 µg/L
Water hardnessMETROPOLITAN UTILITIES DISTRICTAesthetic, no federal health limit · USGS9 gpg
Lead (90th percentile)METROPOLITAN UTILITIES DISTRICT15 µg/L federal action level · US EPA12.3 µg/L
Total trihalomethanes (TTHM)METROPOLITAN UTILITIES DISTRICT80 ppb federal MCL · US EPA44.4 ppb
ArsenicMETROPOLITAN UTILITIES DISTRICT0.010 mg/L · US EPA0.00477 mg/L
Haloacetic acids (HAA5)METROPOLITAN UTILITIES DISTRICT60 ppb federal MCL · US EPA20.2 ppb
NitrateMETROPOLITAN UTILITIES DISTRICT10 mg/L · US EPA3.19 mg/L
FluorideMETROPOLITAN UTILITIES DISTRICT4.0 mg/L · US EPA0.807 mg/L
1 more contaminant detectedShow
CopperMETROPOLITAN UTILITIES DISTRICT1.3 mg/L (action level) · US EPA0.0231 mg/L
29 PFAS tested, none detected in this systemShow

Tested in this system: METROPOLITAN UTILITIES DISTRICT

  • 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
  • 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
  • 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
  • 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
  • Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
  • N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
  • N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
  • Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
  • Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
  • Perfluoro-3-methoxypropanoic acid (PFMPA)
  • Perfluoro-4-methoxybutanoic acid (PFMBA)
  • Perfluorobutanesulfonic acid (PFBS)
  • Perfluorobutanoic acid (PFBA)
  • Perfluorodecanoic acid (PFDA)
  • Perfluorododecanoic acid (PFDoA)
  • Perfluoroheptanesulfonic acid (PFHpS)
  • Perfluoroheptanoic acid (PFHpA)
  • Perfluorohexanesulfonic acid (PFHxS)
  • Perfluorohexanoic acid (PFHxA)
  • Perfluorononanoic acid (PFNA)
  • Perfluorooctanesulfonic acid (PFOS)
  • Perfluorooctanoic acid (PFOA)
  • Perfluoropentanesulfonic acid (PFPeS)
  • Perfluoropentanoic acid (PFPeA)
  • Perfluorotetradecanoic acid (PFTA)
  • Perfluorotridecanoic acid (PFTrDA)
  • Perfluoroundecanoic acid (PFUnA)
1 city

Cities ranked by the records

  • 1
    OmahaMETROPOLITAN UTILITIES DISTRICT
    No PFAS detectedLead below action level
    Open city report →
Showing 1 of 1 cities · scores are system-level, not tap tests

Ranked by the Purity Score of each city's main water system, highest first. Scores belong to water systems; there is no county score. The score is computed only from contaminants measured in the published EPA record, so this ranks the record, not which city's water is safest. How the score works.

PFAS in Douglas CountyPFAS detected in 0 of 1 city; none above a federal limit
4.0 ng/L federal MCL · PFOS, ng/LPFAS in Nebraska
Lead

0of 1 city above the 15 µg/L action level

Based on each system's 90th-percentile result. Lead from household plumbing isn't in this record.

Lead in Nebraska
Hard water

1city reports hardness · Omaha, 9 gpg

Hard on the USGS scale. An aesthetic measure with no federal health limit.

Hard water explained
Who supplies the county

Largest water systems

  1. OmahaMETROPOLITAN UTILITIES DISTRICT · NE3105507
    660,000 served
Questions

Frequently asked

How does Douglas County tap water compare across cities?

PurityMap ranks 1 city in Douglas County by the Purity Score of each city's main water system, computed only from contaminants measured in the published EPA record. Scores belong to water systems, not to cities. The highest published score is Omaha's main water system: METROPOLITAN UTILITIES DISTRICT · PWSID NE3105507 · Purity Score 84 (Good) · Confidence: high · Assessed at the water-system level. The ranking compares the records, not which city's water is safest, and your own tap can differ with household plumbing.

How many Douglas County cities have PFAS above the federal limit?

None of the 1 Douglas County cities on record had a regulated PFAS above the 2024 federal limit in EPA's UCMR 5 testing. PFAS were detected below the limit in 0.

Is there lead in Douglas County tap water?

Utilities report lead as a 90th-percentile result from home taps. 1 of 1 Douglas County cities reported a value above zero, and none was above the 15 µg/L federal action level. Lead usually comes from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.

Does Douglas County have hard water?

Hardness is published in utility water-quality reports for 1 Douglas County city on record; the hardest is Omaha at 9 grains per gallon. Hardness affects scale and appliances; it is not a health finding.

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