Public water system record
Hammock Water Supply
Serves an area of Rapides Parish, LA · 900 people served
Federal records show 12 health-based violations and 7 monitoring/reporting issues for Hammock Water Supply in the last ten years, including an unresolved Groundwater Rule violation.
System profile
- Health-based violations, last 10 years
- 12
- Resolved
- 10
- Unresolved
- 2
- Any acute record
- No
- Monitoring issues, last 10 years
- 7
Key facts
- Hammock Water Supply draws water from 4 wells (2 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order (no penalty) by Louisiana, November 2016.
- Record on file since 1994, with 38 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 337 service lines.
Check whether Hammock Water Supply serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 6, 2025 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 6, 2025 | Active | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 6, 2025 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 6, 2025 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 11, 2024 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Nov 11, 2023 | Resolved | No |
|
Lead and Copper Rule
Treatment technique failure
|
350 | Jul 1, 2023 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Dec 1, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Dec 1, 2020 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 17, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Oct 17, 2019 | Resolved | No |
|
Groundwater Rule
Treatment technique failure
|
140 | Jun 1, 2015 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Nov 18, 2025 | Active |
|
Public Notice
OTHER
|
Nov 10, 2024 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 26, 2024 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 30, 2021 | Resolved |
|
Public Notice
OTHER
|
Jan 8, 2021 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2017 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2015 | Resolved |
Full record since 1994
EPA's records for Hammock Water Supply go back to 1994. Before October 19, 2016 they list 38 health-based violations (28 resolved, 10 archived by EPA without a recorded fix) and 11 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 5 | 0 |
| 2000s | 8 | 0 |
| 2010 to October 18, 2016 | 25 | 11 |
| October 19, 2016 to 2019 | 2 | 1 |
| 2020s | 9 | 5 |
Most recent health-based violation before October 19, 2016: Arsenic, began October 2015, Resolved.
Show all 38 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Arsenic
Contaminant limit exceeded
Measured 0.026 mg/L, federal limit 0.01 mg/L (2.6 times the limit)
|
Oct 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.022 mg/L, federal limit 0.01 mg/L (2.2 times the limit)
|
Jul 1, 2015 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Jun 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.027 mg/L, federal limit 0.01 mg/L (2.7 times the limit)
|
Apr 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.026 mg/L, federal limit 0.01 mg/L (2.6 times the limit)
|
Jan 1, 2015 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.021 mg/L, federal limit 0.01 mg/L (2.1 times the limit)
|
Oct 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02 mg/L, federal limit 0.01 mg/L (2 times the limit)
|
Jul 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.021 mg/L, federal limit 0.01 mg/L (2.1 times the limit)
|
Apr 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.019 mg/L, federal limit 0.01 mg/L (1.9 times the limit)
|
Jan 1, 2014 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.022 mg/L, federal limit 0.01 mg/L (2.2 times the limit)
|
Oct 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.021 mg/L, federal limit 0.01 mg/L (2.1 times the limit)
|
Jul 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.013 mg/L, federal limit 0.01 mg/L (1.3 times the limit)
|
Jan 1, 2013 | Resolved |
|
Arsenic
Contaminant limit exceeded
|
Oct 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 15 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
Jul 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.017 mg/L, federal limit 0.01 mg/L (1.7 times the limit)
|
Apr 1, 2012 | Resolved |
|
Groundwater Rule
Treatment technique failure
|
Jan 5, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 15 µg/L, federal limit 10 µg/L (1.5 times the limit)
|
Jan 1, 2012 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 17 µg/L, federal limit 10 µg/L (1.7 times the limit)
|
Oct 1, 2011 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 19 µg/L, federal limit 10 µg/L (1.9 times the limit)
|
Jul 1, 2011 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 20.5 µg/L, federal limit 10 µg/L (2.1 times the limit)
|
Apr 1, 2011 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 16 µg/L, federal limit 10 µg/L (1.6 times the limit)
|
Jan 1, 2011 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 18 µg/L, federal limit 10 µg/L (1.8 times the limit)
|
Oct 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 17.3 µg/L, federal limit 10 µg/L (1.7 times the limit)
|
Jul 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 16 µg/L, federal limit 10 µg/L (1.6 times the limit)
|
Apr 1, 2010 | Archived |
|
Arsenic
Contaminant limit exceeded
Measured 0.021 mg/L, federal limit 0.01 mg/L (2.1 times the limit)
|
Jan 1, 2010 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.02 mg/L, federal limit 0.01 mg/L (2 times the limit)
|
Oct 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.022 mg/L, federal limit 0.01 mg/L (2.2 times the limit)
|
Jul 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.022 mg/L, federal limit 0.01 mg/L (2.2 times the limit)
|
Apr 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.022 mg/L, federal limit 0.01 mg/L (2.2 times the limit)
|
Jan 1, 2009 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.023 mg/L, federal limit 0.01 mg/L (2.3 times the limit)
|
Oct 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.023 mg/L, federal limit 0.01 mg/L (2.3 times the limit)
|
Jul 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.018 mg/L, federal limit 0.01 mg/L (1.8 times the limit)
|
Apr 1, 2008 | Resolved |
|
Arsenic
Contaminant limit exceeded
Measured 0.012 mg/L, federal limit 0.01 mg/L (1.2 times the limit)
|
Jan 1, 2008 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1995 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1994 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1994 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 1994 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Mar 1, 1994 | Archived |
Enforcement actions
Louisiana regulators took 5 formal enforcement actions against Hammock Water Supply between 1995 and 2016. The most recent was a compliance order (no penalty) in November 2016.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Nov 16, 2016 | Louisiana | Compliance order (no penalty) | 31 violations (31 health-based): Arsenic |
| Jul 9, 2012 | Louisiana | Administrative penalty | 25 violations (20 health-based): Arsenic, Public Notice |
| Aug 12, 2011 | Louisiana | Administrative penalty | 15 violations (15 health-based): Arsenic |
| May 10, 2010 | Louisiana | Compliance order (no penalty) | 26 violations (26 health-based): Arsenic |
| May 1, 1995 | Louisiana | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
What the violations mean
Groundwater Rule
9 incidentsThe system did not complete a treatment step or action that the Groundwater Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Lead and Copper Rule
3 incidentsThe system did not complete a treatment step or action that the Lead and Copper Rule requires (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
Hammock Water Supply draws water from 4 wells (2 of them for emergency, seasonal or other part-time use).
Annual water quality report
Hammock Water Supply must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Louisiana.
Certified drinking water labs by state EPA guidance for private wells