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Tap water quality report

Grove Terrace Mhp Two Llc

EPA monitoring tested this supplier for 74 contaminants and detected 19. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

74
contaminants tested
19
detected
220
people served
5
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Private
Counties served
Grant

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.

5
health-based violations
119
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 2026-01-01 → 2026-03-31
MCL Health-based Archived 1997-07-01 → 1997-07-31
MCL Health-based Archived 1997-07-01 → 1997-07-31
MCL Health-based Archived 1997-07-01 → 1997-07-31
MR Monitoring Resolved 2024-10-01 → 2024-12-31
MR Monitoring Resolved 2024-10-01 → 2024-12-31
Other Monitoring Resolved 2022-07-01
MR Monitoring Resolved 2017-07-01 → 2017-09-30
MR Monitoring Resolved 2017-07-01 → 2017-09-30

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
Nitrate
9570 µg/L 96%
of the EPA limit 10000 µg/L
worst single sample: 10400 µg/L
94/96 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 11/11 LCR 2025
Chloroform
7.873 µg/L
No EPA limit set
worst single sample: 9 µg/L
8/8 SYR4 2013–2018
TTHM
15.796 µg/L 20%
of the EPA limit 80 µg/L
worst single sample: 18.4 µg/L
8/8 SYR4 2013–2018
Dichloroacetic Acid
7 µg/L
No EPA limit set
worst single sample: 7.5 µg/L
6/6 SYR4 2013–2018
Total Haloacetic Acids (HAA5)
12.275 µg/L 20%
of the EPA limit 60 µg/L
worst single sample: 13.4 µg/L
6/6 SYR4 2013–2018
Bromodichloromethane
6.52 µg/L
No EPA limit set
worst single sample: 7.1 µg/L
5/8 SYR4 2013–2018
Trichloroacetic Acid
5.5685 µg/L
No EPA limit set
worst single sample: 5.9 µg/L
4/6 SYR4 2013–2018
Dibromochloromethane
2.22 µg/L
No EPA limit set
worst single sample: 2.3 µg/L
3/10 SYR4 2013–2018
Arsenic
3.9145 µg/L 39%
of the EPA limit 10 µg/L
worst single sample: 3.95 µg/L
2/2 SYR4 2019
Barium
69.86 µg/L 3.5%
of the EPA limit 2000 µg/L
worst single sample: 70.3 µg/L
2/2 SYR4 2019
Copper
229.27 µg/L 18%
of the EPA limit 1300 µg/L
worst single sample: 241 µg/L
2/2 SYR4 2019
Fluoride
183.4 µg/L 4.6%
of the EPA limit 4000 µg/L
worst single sample: 185 µg/L
2/2 SYR4 2019
Nitrate-Nitrite
8990.5 µg/L 90%
of the EPA limit 10000 µg/L
worst single sample: 9060 µg/L
2/2 SYR4 2019
Cadmium
0.1400 µg/L 2.8%
of the EPA limit 5 µg/L
 1/2 SYR4 2019
Chromium
0.2200 µg/L 0.2%
of the EPA limit 100 µg/L
 1/2 SYR4 2019
Combined Radium (-226 And -228)
4.77 pCi/L 95%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Lead
6.43 µg/L 43%
of the EPA limit 15 µg/L
 1/2 SYR4 2019
Selenium
0.2300 µg/L 0.5%
of the EPA limit 50 µg/L
 1/2 SYR4 2019
55 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitritePentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Jill Pearce

Frequently asked questions about Grove Terrace Mhp Two Llc

Is Grove Terrace Mhp Two Llc tap water safe to drink?

EPA monitoring detected 19 contaminants in Grove Terrace Mhp Two Llc'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 Grove Terrace Mhp Two Llc's water?

EPA monitoring detected Nitrate, Lead, Chloroform, TTHM, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Grove Terrace Mhp Two Llc serve?

Grove Terrace Mhp Two Llc reports serving 220 people in Washington, per its EPA record.

Has Grove Terrace Mhp Two Llc had any water quality violations?

The EPA has 119 violations on file for Grove Terrace Mhp Two Llc, of which 5 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.