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Facility At-A-Glance Report
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[GLOSSARY]
Place ID 758391
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General Information
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| Region |
Place ID |
Place Name |
Place Type |
Place Address |
Place County |
| 8 |
758391 |
Los Alisos WD WWTP |
Wastewater Treatment Facility |
22312 Muirlands Lake Forest, CA, 92630 |
Orange |
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Related Parties
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Total Related Parties: 9
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Regulatory Measures
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Total Reg Measures: 2
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Violations
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| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1105707 |
05/01/2022 |
OEV |
Total Coliform Not to exceed a specific limit more than once within any 30-day period. limit is 23 MPN/100 mL and reported value was 49 MPN/100 mL at REC-003. |
Water Recycling Operations determined the LAFE_G final effluent sampling tap to be the source of the elevated total coliforms. This was determined through the sampling and data results process that showed a decrease in the coliform results once the tap was cleaned and disinfected. IRWD staff does not believe that the final effluent posed any risk to public health or the environment. As a precaution, Water Recycling Operations halted and diverted flows until Total Coliform sample confirmations were available indicating the disinfection was effective at targeting the source. As a corrective action, Water Recycling Operations has outlined procedures to expedite the course of action for presumptive results and to better identify if the sample tap as the source of high values. These procedures include Water Recycling Operations staff performing sample tap cleaning and coordinate follow-up sampling should there be a need to confirm elevated Total Coliform results within the first 24-hour window after an elevated presumptive result is received. |
Violation |
U |
eSMR |
| 1104503 |
04/30/2022 |
OEV |
Total Coliform Not to exceed a specific limit more than once within any 30-day period. limit is 23 MPN/100 mL and reported value was 170 MPN/100 mL at REC-003. |
Water Recycling Operations determined the LAFE final effluent sampling tap to be the source of the elevated total coliforms. This was determined through the sampling and data results process that showed a decrease in the coliform results once the tap was cleaned and disinfected. IRWD staff does not believe that the final effluent posed any risk to public health or the environment. As a precaution, Water Recycling Operations halted and diverted flows until Total Coliform sample confirmations were available indicating the disinfection was effective at targeting the source. As a corrective action, Water Recycling Operations has outlined procedures to expedite the course of action for presumptive results and to better identify if the sample tap as the source of high values. These procedures include Water Recycling Operations staff performing sample tap cleaning and coordinate follow-up sampling should there be a need to confirm elevated Total Coliform results within the first 24-hour window after an elevated presumptive result is received. |
Violation |
U |
eSMR |
| 1067557 |
10/07/2019 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 7.8 MPN/100 mL at REC-003. |
Based on the available evidence, IRWD staff does not believe that the final effluent posed any risk to the public health or the environment during this
event. Staff did a series of problem-solving activities to ascertain the source of the problem, starting with disinfection of the sample device. This initial
disinfection brought the numbers down but did not get numbers back to normal. At the time of local disinfection, the line was also opened to scour
the back line. The scouring of the line is when operations detected debris in the line and removed it. Although the local disinfection reduced the T.
Coliform numbers, the sample was still a little turbid and the line was diverted, and a full disinfection of the system was performed. This full
disinfection brought the T. Coliform numbers and turbity back to normal and ensured that any remaining contamination of the system was treated.
The debris was found during the scouring after local disinfection and prior to full disinfection of the line and we believe the debris to be the source of
the high numbers. The elevated Total Coliform counts were associated with the contamination of the final effluent line. Of particular note, the e.coli
counts remained undetected, which would have been a "sewage signal" if detected coincidentally with the Total Coliform. Additionally, the final effluent
maintained a normal chlorine residual with low turbidity, two very important factors for recycled water. Finally, Water Recycling Operations has
updated its Standard Operating Procedure to address occurrences of high presumptive Total Coliform counts. |
Violation |
U |
eSMR |
| 1067556 |
10/02/2019 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 17 MPN/100 mL at REC-003. |
Based on the available evidence, IRWD staff does not believe that the final effluent posed any risk to the public health or the environment during this
event. Staff did a series of problem-solving activities to ascertain the source of the problem, starting with disinfection of the sample device. This initial
disinfection brought the numbers down but did not get numbers back to normal. At the time of local disinfection, the line was also opened to scour
the back line. The scouring of the line is when operations detected debris in the line and removed it. Although the local disinfection reduced the T.
Coliform numbers, the sample was still a little turbid and the line was diverted, and a full disinfection of the system was performed. This full
disinfection brought the T. Coliform numbers and turbity back to normal and ensured that any remaining contamination of the system was treated.
The debris was found during the scouring after local disinfection and prior to full disinfection of the line and we believe the debris to be the source of
the high numbers. The elevated Total Coliform counts were associated with the contamination of the final effluent line. Of particular note, the e.coli
counts remained undetected, which would have been a "sewage signal" if detected coincidentally with the Total Coliform. Additionally, the final effluent
maintained a normal chlorine residual with low turbidity, two very important factors for recycled water. Finally, Water Recycling Operations has
updated its Standard Operating Procedure to address occurrences of high presumptive Total Coliform counts. |
Violation |
U |
eSMR |
| 1067554 |
10/02/2019 |
OEV |
Total Coliform Instantaneous Maximum limit is 24 MPN/100 mL and reported value was 280 MPN/100 mL at REC-003. |
Based on the available evidence, IRWD staff does not believe that the final effluent posed any risk to the public health or the environment during this
event. Staff did a series of problem-solving activities to ascertain the source of the problem, starting with disinfection of the sample device. This initial
disinfection brought the numbers down but did not get numbers back to normal. At the time of local disinfection, the line was also opened to scour
the back line. The scouring of the line is when operations detected debris in the line and removed it. Although the local disinfection reduced the T.
Coliform numbers, the sample was still a little turbid and the line was diverted, and a full disinfection of the system was performed. This full
disinfection brought the T. Coliform numbers and turbity back to normal and ensured that any remaining contamination of the system was treated.
The debris was found during the scouring after local disinfection and prior to full disinfection of the line and we believe the debris to be the source of
the high numbers. The elevated Total Coliform counts were associated with the contamination of the final effluent line. Of particular note, the e.coli
counts remained undetected, which would have been a "sewage signal" if detected coincidentally with the Total Coliform. Additionally, the final effluent
maintained a normal chlorine residual with low turbidity, two very important factors for recycled water. Finally, Water Recycling Operations has
updated its Standard Operating Procedure to address occurrences of high presumptive Total Coliform counts. |
Violation |
U |
eSMR |
| 1067553 |
10/02/2019 |
OEV |
Total Coliform Not to exceed a specific limit more than once within any 30-day period. limit is 23 MPN/100 mL and reported value was 280 MPN/100 mL at REC-003. |
Based on the available evidence, IRWD staff does not believe that the final effluent posed any risk to the public health or the environment during this
event. Staff did a series of problem-solving activities to ascertain the source of the problem, starting with disinfection of the sample device. This initial
disinfection brought the numbers down but did not get numbers back to normal. At the time of local disinfection, the line was also opened to scour
the back line. The scouring of the line is when operations detected debris in the line and removed it. Although the local disinfection reduced the T.
Coliform numbers, the sample was still a little turbid and the line was diverted, and a full disinfection of the system was performed. This full
disinfection brought the T. Coliform numbers and turbity back to normal and ensured that any remaining contamination of the system was treated.
The debris was found during the scouring after local disinfection and prior to full disinfection of the line and we believe the debris to be the source of
the high numbers. The elevated Total Coliform counts were associated with the contamination of the final effluent line. Of particular note, the e.coli
counts remained undetected, which would have been a "sewage signal" if detected coincidentally with the Total Coliform. Additionally, the final effluent
maintained a normal chlorine residual with low turbidity, two very important factors for recycled water. Finally, Water Recycling Operations has
updated its Standard Operating Procedure to address occurrences of high presumptive Total Coliform counts. |
Violation |
U |
eSMR |
| 1067555 |
10/01/2019 |
OEV |
Total Coliform Not to exceed a specific limit more than once within any 30-day period. limit is 23 MPN/100 mL and reported value was 46 MPN/100 mL at REC-003. |
Based on the available evidence, IRWD staff does not believe that the final effluent posed any risk to the public health or the environment during this
event. Staff did a series of problem-solving activities to ascertain the source of the problem, starting with disinfection of the sample device. This initial
disinfection brought the numbers down but did not get numbers back to normal. At the time of local disinfection, the line was also opened to scour
the back line. The scouring of the line is when operations detected debris in the line and removed it. Although the local disinfection reduced the T.
Coliform numbers, the sample was still a little turbid and the line was diverted, and a full disinfection of the system was performed. This full
disinfection brought the T. Coliform numbers and turbity back to normal and ensured that any remaining contamination of the system was treated.
The debris was found during the scouring after local disinfection and prior to full disinfection of the line and we believe the debris to be the source of
the high numbers. The elevated Total Coliform counts were associated with the contamination of the final effluent line. Of particular note, the e.coli
counts remained undetected, which would have been a "sewage signal" if detected coincidentally with the Total Coliform. Additionally, the final effluent
maintained a normal chlorine residual with low turbidity, two very important factors for recycled water. Finally, Water Recycling Operations has
updated its Standard Operating Procedure to address occurrences of high presumptive Total Coliform counts. |
Violation |
U |
eSMR |
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Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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Total Violations: 7
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Priority Violations: 0
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*Click the "(+/-) Violation Description" link to expand and contract the violation description.
*As of 5/20/2010, the Water Board's Enforcement Policy requires that all violations be classified as 1, 2 or 3, with class 1 being the highest. Prior to this, violations were simply classified as Yes or No. If a 123 classification has been assigned to a violation that occurred before this date, that classification data will be displayed instead of the Yes/No data.
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| Violation Types |
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OEV = Other Effluent Violation
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Enforcement Actions
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Total Enf Actions: 0
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Inspections
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| Inspection ID |
Inspection Type |
Lead Inspector |
Actual End Date |
Planned |
Violations |
Attachment |
| 50563716 |
B Type compliance inspection |
Ryan Harris |
01/31/2023 |
N |
0 |
N/A |
| 25027291 |
B Type compliance inspection |
Julio Lara |
06/22/2016 |
N |
0 |
N/A |
| 19172804 |
B Type compliance inspection |
Julio Lara |
12/18/2014 |
N |
0 |
N/A |
| 18601637 |
B Type compliance inspection |
Julio Lara |
12/09/2014 |
N |
0 |
[Attachments] |
| 15649739 |
B Type compliance inspection |
Julio Lara |
02/20/2014 |
N |
0 |
Download |
| 10273124 |
B Type compliance inspection |
Julio Lara |
11/09/2012 |
N |
0 |
[Attachments] |
| 10273122 |
B Type compliance inspection |
Julio Lara |
11/07/2012 |
N |
0 |
Download |
| 6232881 |
B Type compliance inspection |
Julio Lara |
11/15/2011 |
N |
0 |
[Attachments] |
| 4328468 |
B Type compliance inspection |
Julio Lara |
04/28/2011 |
N |
0 |
[Attachments] |
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| Total Inspections: 9 |
Last Inspection: 01/31/2023 |
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The current report was generated with data as of: 06/06/2024
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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