Historical Compliance Records MO

Riviera South Water Corporation

EPA ID: MO5036314 ยท 90 people served ยท 2 ZIP codes

ZipCheckup's reading of EPA records for Riviera South Water Corporation (MO5036314): 33 violations on record since 2021. While 33 violations did appear in Riviera South Water Corporation's monitoring record, none is listed as unresolved; the utility serves approximately 90 residents. A closed violation record does not by itself establish compliance with every current EPA standard.

Data: EPA SDWIS

90
People Served
2
ZIP Codes Served
33
Violations (since 2021)
Groundwater
Water Source
0.0051 mg/L
Most recent lead 90th percentile on record (monitoring period ending 2022-12-31)
Zone 2
County Radon Potential ยท Moderate
33
Contaminants Flagged
$159K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for Riviera South Water Corporation Source: EPA SDWIS service area boundaries.

Service area boundary

Demographics of ZIP Codes Served

$44,622
Median Household Income
3,588
Population of ZIP Codes Served (Census)
84%
Disadvantaged Population
75th
Poverty Percentile
85th
Energy Burden Percentile
54%
Pre-1986 Housing

The ZIP codes associated with Riviera South Water Corporation have a median household income of $44,622 and about 3,588 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 54% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: On average, 84% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

Riviera South Water Corporation's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Moderate Risk
Source Contamination Risk
35th
Wastewater Discharge Proximity
15th
Superfund Site Proximity

Infrastructure Risk

51 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
20 yr
Est. Remaining Life
Stable
Decay Status
Installed 72% of expected lifespan used (estimate) End of life

Comparable Water Systems

Similar-sized systems in Missouri

1 violation
Crystal Beach Subd
91 people
4 violations
1 violation
2 violations

Cost of Inaction

Illustrative per-household cost scenario based on stated assumptions:

Estimated Healthcare Costs $1,500

Annual per household (ZipCheckup estimate)

Estimated Cumulative Cost Per Household

5 years
$7,500
10 years
$15,000
20 years
$30,000

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

System Overview

Riviera South Water Corporation (EPA ID: MO5036314) is a community water system in Missouri that serves approximately 90 people from groundwater sources.

This system provides water to 2 ZIP codes across 2 communities.

Violation History

No current noncompliance in the accepted 2026Q2 snapshot. The 33 records in the 2021-2026 window are classified as resolved or archived, not current.

Status breakdown for accepted records with record years 2021-2026: 1 resolved, 32 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Date Contaminant Type Status
January 1, 2025 Nitrate-Nitrite Non-health-based Archived
October 17, 2024 LEAD AND COPPER RULE REVISIONS Non-health-based Resolved
January 1, 2023 Arsenic Non-health-based Archived
January 1, 2023 Barium Non-health-based Archived
January 1, 2023 Cadmium Non-health-based Archived
January 1, 2023 Chromium Non-health-based Archived
January 1, 2023 Fluoride Non-health-based Archived
January 1, 2023 Mercury Non-health-based Archived
January 1, 2023 Antimony, Total Non-health-based Archived
January 1, 2023 Beryllium, Total Non-health-based Archived
January 1, 2023 Thallium, Total Non-health-based Archived
January 1, 2023 Selenium Non-health-based Archived
January 1, 2023 1,2,4-Trichlorobenzene Non-health-based Archived
January 1, 2023 cis-1,2-Dichloroethylene Non-health-based Archived
January 1, 2023 Xylenes, Total Non-health-based Archived
January 1, 2023 DICHLOROMETHANE Non-health-based Archived
January 1, 2023 o-Dichlorobenzene Non-health-based Archived
January 1, 2023 p-Dichlorobenzene Non-health-based Archived
January 1, 2023 Vinyl chloride Non-health-based Archived
January 1, 2023 1,1-Dichloroethylene Non-health-based Archived

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Contaminant Category Violations Health-Based
Nitrate-Nitrite Monitoring & Reporting 1 No
Arsenic Monitoring & Reporting 1 No
Barium Monitoring & Reporting 1 No
Cadmium Monitoring & Reporting 1 No
Chromium Monitoring & Reporting 1 No
Antimony, Total Monitoring & Reporting 1 No
Nitrate-Nitrite Monitoring & Reporting 1 No
Selenium Other Violation 1 No
Antimony, Total Monitoring & Reporting 1 No
Beryllium, Total Other Violation 1 No
Thallium, Total Other Violation 1 No
1,2,4-Trichlorobenzene Monitoring & Reporting 1 No
cis-1,2-Dichloroethylene Monitoring & Reporting 1 No
Xylenes, Total Monitoring & Reporting 1 No
DICHLOROMETHANE Monitoring & Reporting 1 No

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
0.0051 mg/L No 2022-12-31

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

2 of 2 ZIP records with known zones are in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by MO or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Riviera South Water Corporation (MO5036314) on EPA.gov.

Frequently Asked Questions

Is Riviera South Water Corporation water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for Riviera South Water Corporation; its 33 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does Riviera South Water Corporation serve?

Riviera South Water Corporation serves approximately 90 people across 2 ZIP codes in Missouri.

Where does Riviera South Water Corporation get its water?

The primary water source is groundwater.

Frequently Asked Questions

Should I use a water filter? ▼
Given 33 recorded violations, review the violation types and dates; a filter certified for a specific contaminant of concern can reduce that contaminant at the tap. Monitoring or reporting violations are not something a filter addresses.
How many people does Riviera South Water Corporation serve? ▼
Riviera South Water Corporation serves approximately 90 people with drinking water across 2 ZIP codes.
What is Riviera South Water Corporation's water source? ▼
Riviera South Water Corporation draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in Riviera South Water Corporation's water? ▼
The most recent 90th-percentile lead result on record is 0.0051 mg/L (sample period ending 2022-12-31). This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with Riviera South Water Corporation? ▼
The ZIP codes mapped to Riviera South Water Corporation have a median household income of $44,622 (Census ZIP-code estimate). In CEJST data, 84% of census tracts in the counties mapped to this area are designated disadvantaged (average across mapped ZIP codes), which may indicate greater vulnerability to environmental health risks.
Where does Riviera South Water Corporation get its water? ▼
Riviera South Water Corporation's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table. Based on the available data, the modeled source-contamination category is moderate; test local water to assess actual exposure.

How to cite this page

APA ZipCheckup. (n.d.). Riviera South Water Corporation (MO): 33 EPA Violations. https://zipcheckup.com/water-system/mo5036314/
BibTeX
@misc{zipcheckup-water-system-mo5036314,
  author = {{ZipCheckup}},
  title  = {{Riviera South Water Corporation (MO): 33 EPA Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/mo5036314/}
}

What You Can Do

1

Test your water

Home test kits can detect lead, bacteria, and other contaminants at your tap. Find the right filter โ†’

2

Check your specific ZIP code

Water quality can vary within a system. View nearest ZIP report โ†’

3

Contact your utility

Riviera South Water Corporation (EPA ID: MO5036314) - request the latest Consumer Confidence Report or ask about specific contaminants.

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