| Violation ID |
Occurrence Date |
Violation Type |
Violation Description(-) |
Violation Status |
Priority |
Source |
Facility Name |
Violated Reg. Meas. ID |
Violated Reg. Meas. Order No. |
Linked to Enf. |
| 1154396 |
05/01/2026 |
Late Report |
Annual SMR ( MONNPDES ) (Recycled Water Policy Annual Report) report for 2025 (2938664) was due on 30-APR-26 |
Violation |
None |
Report |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1152921 |
02/22/2026 |
Deficient Monitoring |
Missing BOD/TSS data |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1152920 |
02/10/2026 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 506 MPN/100 mL at EFF-001. |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1152919 |
02/10/2026 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1007 MPN/100 mL at EFF-001. |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1144006 |
06/02/2025 |
Late Report |
Once Only OneTime ( TECHRPT ) (Priority Pollutant 1) report for 2024/06/01 (2971035) was due on 01-JUN-25 |
Violation |
None |
Report |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1143999 |
06/01/2025 |
Late Report |
Once Only OneTime ( TECHRPT ) (Mixing Zone Study Update) report for 2024/05/06 (2842042) was due on 31-MAY-25 |
Violation |
None |
Report |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1143919 |
04/30/2025 |
Deficient Monitoring |
Laboratory communication error, completed Acute toxicity bioassay rather than a chronic toxicity bioassay. more detailed explanation included with report cover letter. |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1143918 |
04/30/2025 |
CAT1 |
Total Suspended Solids (TSS), Percent Removal 30-Day Average limit is 65 % and reported value was 54 % at EFF-002. |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1143230 |
03/31/2025 |
CAT1 |
Total Suspended Solids (TSS), Percent Removal 30-Day Average limit is 65 % and reported value was 25 % at EFF-002. |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1143229 |
03/31/2025 |
CAT1 |
BOD5 @ 20 Deg. C, Percent Removal 30-Day Average limit is 65 % and reported value was 45 % at EFF-002. |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1139746 |
12/31/2024 |
Deficient Monitoring |
Missed total coliform sample |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1138540 |
11/30/2024 |
Deficient Monitoring |
Missing data for RSW-001 dissolved organic carbon sample. |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1134554 |
10/02/2024 |
Late Report |
Once Only OneTime ( TECHRPT ) (Analytical methods Repot Certification) report for 2024/05/06 (2844789) was due on 01-OCT-24 |
Violation |
None |
Report |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1131959 |
08/31/2024 |
Late Report |
Once Only OneTime ( TECHRPT ) (TRE Work Plan) report for 2024/05/06 (2842044) was due on 30-AUG-24 |
Violation |
None |
Report |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1130794 |
08/01/2024 |
Late Report |
Once Only OneTime ( TECHRPT ) (Analytical Methods Report) report for 2024/05/06 (2842040) was due on 31-JUL-24 |
Violation |
None |
Report |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1130381 |
06/30/2024 |
Deficient Monitoring |
Equipment Malfunction |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
Y |
| 1130380 |
06/12/2024 |
Deficient Monitoring |
Equipment Malfunction *** Dismissed:Dismissed see violation ID 1130381. Flow monitoring did not occur. Malfunction occurred 6/11, 6/12, 6/13, staff changed violation date to 6/30. |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1130379 |
06/11/2024 |
Deficient Monitoring |
Equipment Malfunction *** Dismissed:Dismissed see violation ID 1130381. Flow monitoring did not occur. Malfunction occurred 6/11, 6/12, 6/13, staff changed violation date to 6/30. |
Violation |
N |
eSMR |
Portola WWTP |
451326 |
R5-2024-0023 |
N |
| 1128358 |
04/30/2024 |
CAT1 |
Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 65 % and reported value was 43 % at EFF-002. |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1126993 |
03/31/2024 |
Order Conditions |
Freeboard < 2.0' RESULT: 1.8' in PND-005 Freeboard < 2.0' RESULT: 1.6' in PND-006 |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1126992 |
03/06/2024 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.2 SU at EFF-002. |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1119169 |
06/30/2023 |
Order Conditions |
Freeboard in treatment pond PND-008 below 2 feet during period of discharge, violating Order Condition VI.C.4.a.ix |
Violation |
N |
Report |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1117945 |
04/25/2023 |
Deficient Monitoring |
Composite sampler was not used for collection of BOD and TSS samples at EFF-002 since it was broken at time of collection. Samples were collected by grab samples. According to permit section VII.A, results gathered from this sample on 4/25/2023 cannot be used to determine compliance with BOD and TSS effluent limits since not collected as a 24-composite sample. |
Violation |
N |
Report |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1117638 |
03/14/2023 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 55.9 MPN/100 mL at EFF-001. |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1117503 |
04/30/2023 |
Order Conditions |
Freeboard in multiple treatment ponds below 2 feet during period of discharge, violating Order condition VI.C.4.a.ix |
Violation |
N |
Report |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1117494 |
03/31/2023 |
Order Conditions |
Operating freeboard of multiple ponds was below 2 feet, which is in violation with Order conditions VI.C.4.a.ix |
Violation |
N |
Report |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1117352 |
04/30/2023 |
CAT1 |
Total Suspended Solids (TSS), Percent Removal Monthly Average limit is 65.0 % and reported value was 57 % at EFF-002. |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1117351 |
04/30/2023 |
Order Conditions |
pH limit violation in Pond 5: Result: 9.6 limit: 9.5 pH limit violation in Pond 4: Result: 10.1 limit: 9.5 |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1114025 |
01/31/2023 |
Deficient Monitoring |
SEE COVER LETTER INSUFFICIENT TIME TO INCUBATE TROUT LARVAE |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1114023 |
01/24/2023 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001. |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1113278 |
02/01/2023 |
Late Report |
Once Only OneTime ( TECHRPT ) (Regionalization Eval) report for 2018/12/07 (2145537) was due on 31-JAN-23 |
Violation |
None |
Report |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1105945 |
05/25/2022 |
Order Conditions |
pH measured in PND-004 was 9.6 Permit limit is 9.5 |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1103972 |
03/31/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 45 mg/L and reported value was 50.3 mg/L at EFF-002. |
Violation |
N |
Report |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1103971 |
03/22/2022 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average limit is 65 mg/L and reported value was 70 mg/L at EFF-002. |
Violation |
N |
Report |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1103779 |
03/31/2022 |
CAT1 |
Total Suspended Solids (TSS), Percent Removal Monthly Average limit is 65 % and reported value was 52 % at EFF-002. |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1103401 |
02/28/2022 |
Deficient Monitoring |
Due to the unavailability of test fish a bioassay was not pulled in the month of February. Unseasonably warm temperatures and excessive snow/ ice melt caused the pond levels to rise rapidly which resulted in discharging commencing earlier than planned. Discharging began on the 22nd of February and was ceased three days later February 25th. With it being so late in the month it was not possible to incubate and prepare the test fish in such a short period of time. |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1102938 |
03/07/2022 |
ATOX |
Acute Toxicity-Rainbow Trout-survival Monthly Minimum limit is 70.0 % survival and reported value was 15.0 % survival at EFF-002. |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
| 1101680 |
02/28/2022 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 45.0 mg/L and reported value was 52.0 mg/L at EFF-002. |
Violation |
N |
eSMR |
Portola WWTP |
397557 |
R5-2018-0088 |
Y |
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