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Tap water quality report

Katherine Landing Dwtp

EPA monitoring tested this supplier for 73 contaminants and detected 15. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

73
contaminants tested
15
detected
1,300
people served
119
health-based violations
Nevada rankingsLead in NevadaPFAS in Nevada
Water source
Surface water
Ownership
Federal government
Counties served
Mohave

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

119
health-based violations
925
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2025-10-01 → 2025-12-31
MCL Health-based Resolved 2025-10-01 → 2025-12-31
MCL Health-based Resolved 2025-10-01 → 2025-12-31
MCL Health-based Resolved 2025-10-01 → 2025-12-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2025-01-01 → 2025-03-31
MCL Health-based Resolved 2024-10-01 → 2024-12-31

Other contaminants detected

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 this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
TTHM
126 µg/L 158%
of the EPA limit, at the 95th percentile of samples — 80 µg/L
worst single sample: 190 µg/L
49/49 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
71.6 µg/L 119%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 120 µg/L
45/45 SYR4 2012–2019
Copper
456 µg/L 35%
of the EPA limit 1300 µg/L
worst single sample: 610 µg/L
25/25 SYR4 2014–2017
Nitrate
350 µg/L 3.5%
of the EPA limit 10000 µg/L
 14/16 SYR4 2012–2019
Lead
51.85 µg/L 346%
of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 92 µg/L
12/25 SYR4 2014–2017
Lead
0.0017 mg/L 11%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2023
Fluoride
376 µg/L 9.4%
of the EPA limit 4000 µg/L
worst single sample: 390 µg/L
8/8 SYR4 2012–2019
Nitrate-Nitrite
347 µg/L 3.5%
of the EPA limit 10000 µg/L
worst single sample: 350 µg/L
7/8 SYR4 2012–2019
Arsenic
2.54 µg/L 25%
of the EPA limit 10 µg/L
worst single sample: 2.6 µg/L
4/9 SYR4 2012–2019
Barium
118.5 µg/L 5.9%
of the EPA limit 2000 µg/L
worst single sample: 120 µg/L
4/9 SYR4 2012–2019
Selenium
1.9 µg/L 3.8%
of the EPA limit 50 µg/L
 4/9 SYR4 2012–2019
Combined Radium (-226 And -228)
0.5000 pCi/L 10%
of the EPA limit 5 pCi/L
 2/3 SYR4 2015–2019
Combined Uranium
3.87 µg/L 13%
of the EPA limit 30 µg/L
worst single sample: 3.9 µg/L
2/2 SYR4 2015–2019
Toluene
0.5490 µg/L 0.1%
of the EPA limit 1000 µg/L
worst single sample: 0.5500 µg/L
2/8 SYR4 2012–2019
Xylenes, Total
2.5 µg/L 0%
of the EPA limit 10000 µg/L
 1/8 SYR4 2012–2019
58 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,3,7,8-TCDD2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SAMONS, ARTHUR V
Phone
702-575-8770
Email
[email protected]

Frequently asked questions about Katherine Landing Dwtp

Is Katherine Landing Dwtp tap water safe to drink?

EPA monitoring detected 15 contaminants in Katherine Landing Dwtp's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Katherine Landing Dwtp's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Copper, Nitrate, Lead, and others. The full list with the level and data source for each is above.

How many people does Katherine Landing Dwtp serve?

Katherine Landing Dwtp reports serving 1,300 people in Nevada, per its EPA record.

Has Katherine Landing Dwtp had any water quality violations?

The EPA has 925 violations on file for Katherine Landing Dwtp, of which 119 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

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.