Is Rio Vista Mobile Home Park Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Mixed public/private
Counties served: Pima

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
TT	Health-based	Resolved	2020-04-19
TT	Health-based	Resolved	2020-04-19
TT	Health-based	Resolved	2020-04-19
MCL	Health-based	Resolved	1999-08-01 → 1999-08-31
Other	Monitoring	Resolved	2023-02-26
Other	Monitoring	Resolved	2023-02-26
Other	Monitoring	Resolved	2022-10-02
Other	Monitoring	Resolved	2022-10-02
MON	Monitoring	Resolved	2022-01-01 → 2022-01-31
MON	Monitoring	Resolved	2022-01-01 → 2022-01-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Nitrate	4100 µg/L 41% of the EPA limit 10000 µg/L	16/18	SYR4	2012–2019
Copper	63 µg/L 4.8% of the EPA limit 1300 µg/L	15/15	SYR4	2012–2018
Lead	0.0014 mg/L 9.3% of the EPA limit 0.0150 mg/L	12/12	LCR	2024
Lead	3.7 µg/L 25% of the EPA limit 15 µg/L	9/15	SYR4	2012–2018
Simazine	0.1000 µg/L 2.5% of the EPA limit 4 µg/L	3/5	SYR4	2016–2019
TTHM	7.4 µg/L 9.3% of the EPA limit 80 µg/L	1/2	SYR4	2013–2014

51 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-DAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorOxamylPentachlorophenolPicloramStyreneTetrachloroethyleneTolueneTotal Haloacetic Acids (HAA5)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: SAILORS, RICK AND TAMSIN
Phone: 520-795-4598
Email: riovistatucson@gmail.com

Frequently asked questions about Rio Vista Mobile Home Park

Is Rio Vista Mobile Home Park tap water safe to drink?

EPA monitoring detected 6 contaminants in Rio Vista Mobile Home Park'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 Rio Vista Mobile Home Park's water?

EPA monitoring detected Nitrate, Copper, Lead, Lead, Simazine, and others. The full list with the level and data source for each is above.

How many people does Rio Vista Mobile Home Park serve?

Rio Vista Mobile Home Park reports serving 217 people in Arizona, per its EPA record.

Has Rio Vista Mobile Home Park had any water quality violations?

The EPA has 65 violations on file for Rio Vista Mobile Home Park, of which 4 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.