Document QgZZJ26maXDxKy6dg0jpQqwk8
Region 6 - Enforcement & Compliance Assurance Division
INSPECTION REPORT
+Inspection Date(s): Media Program: Regulatory Program(s)
11/19/2025 Water NPDES
Company Name: Facility Name: Facility Physical Location:
(city, state, zip code) Mailing address:
(city, state, zip code) County/Parish: Facility Phone Number Facility Contact:
Doa Ana County Utilities
Doa Ana County South Central Wastewater Treatment Plant
East Sloan Road and Montes Road
La Mesa, NM 88044
845 North Motel Boulevard
Las Cruces, NM 88007
Doa Ana
575-647-7142
Mireya Rascon
Asst. Mgr. Operations Water Utilities
Department
mireyar @donaanacounty.org
FRS Number: Identification/Permit Number: Media Identifier Number: NAICS: SIC:
110017841549 NM0030490 N/A 221320 4952
Personnel participating in inspection:
Mireya Rascon
Doa Ana County
Assistant Utilities Department Director
David Esparza
EPA Lead Inspector Signature/Date
EPA-R6/ECDWM
Environmental Engineer
Digitally signed by DAVID
DAVID ESPARZA ESPARZA
David Esparza
Date: 2026.02.24 12:08:17 -07'00' Date
Supervisor Signature/Date
ROBERTO BERNIER Date: 2026.03.31 10:53:06 -05'00' Digitally signed by ROBERTO BERNIER
Roberto Bernier
Date
6ENFORM-019-R9 (02/27/2025)
1
Section I - INTRODUCTION
Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025
PURPOSE OF THE INSPECTION
EPA Region 6 inspector David Esparza, PE, arrived at the Doa Ana County/South Central Wastewater Treatment Plant (WWTP) at approximately 1:30 PM on November 19, 2025, for an announced inspection. I met with Ms. Mireya Rascon, Doa Ana County Assistant Utilities Department Director, I presented my credentials and informed her that this was an EPA inspection to determine the WWTP's compliance under the Clean Water Act (CWA). This Capacity, Management, Operations and Maintenance (CMOM) SelfAssessment evaluation was conducted as in conjunction with compliance evaluation inspection (CEI) which is authorized under the authority of the National Pollutant Discharge Elimination System (NPDES) permit program, in accordance with CWA. The generation of this report is based on information supplied by Doa Ana County representatives, observations made by the United States Environmental Protection Agency (US EPA) inspector, and records and reports maintained by the permittee (Doa Ana County), and the US EPA. Before leaving the facility on November 19, 2025, an exit briefing was held with Ms. Rascon, to explain and discuss the Capacity Management Operations and Maintenance (CMOM) checklist forwarded via electronic mail (email) earlier in our discussion.
FACILITY DESCRIPTION
The WWTP is a major discharger with a design flow of 1.05 million gallons per day (MGD), inclusive of an approximate average daily flow of 0.500 MGD and is located at the intersection of East Sloan Road and Montes Road in La Mesa, Doa Ana County, New Mexico (depicted in Aerial Image #1 below). The WWTP serves a population of approximately 13,000 residents. The WWTP is operated by staff within the Wastewater Management Division of the Public Utilities Department on a 24-hour per day, 7 days per week basis.
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Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025
Aerial Image #1- Doa Ana County/South Central Wastewater Treatment Plant
The WWTP is a Sequencing Batch Reactor (SBR) type of treatment facility. Influent flow collected from 33 lift stations (Identified in Table 1 below) and a 16-inch force main, enters the plant's lift station (identified as #14 in Table 1 below), thence is pumped to the head works located at ground level. Thence the influent wastewater flows through a preliminary treatment process that takes place at the entrance works which includes a grinder, fine screen, and a conveyor unit. Screened wastewater thence flows into the grit chamber where settleable solids and inorganic material are removed, thence the pretreated wastewater flows by gravity from the entrance works to a pre-react basin where influent will receive partial treatment before entering to the main reactor for secondary treatment.
The WWTP's two reactor basins are designed to operate in an aeration, clarification and clear liquid decant sequence. During the aeration phase the reactor provides dissolved oxygen (DO) to the microorganisms. After a timed interval, the aeration is stopped to allow for settling, thence the solids are either retained within the reactor or wasted to the sludge holding pond.
The sludge in the holding pond is then pumped to the sludge belt press for dewatering and is then transported and disposed of at the South-Central Solid Waste Authority/Corralitos Regional Landfill.
Table 1: Doa Ana County/South Central Wastewater Lift Stations
LIFT STATION
1 Salem Wastewater Treatment Plant
2
Salem
3
Rincon Wastewater Treatment Plant
4
Rincon
ADDRESS
2800 B. B Romig Salem, NM 101 Salem St Salem,NM 330 Mantooth Loop Rincon, NM 330 Mantooth Loop Rincon, NM
3
5
La Union #1
6
La Union #2
7
La Union #3
8
Chamberino #1
9
Chamberino #2
10 Montana Vista #1
11 Montana Vista #2
12 Las Palmeras
13 Berino
14 South Central Wastewater Treatment Plant
15 Del Cerro #1
16 Vado #2
17 Vado #3
18 Vado #4
19 Vado #5
20 Vado #6
21 Vado #7
22 Sleepy Farms LS
23 La Mesa #1
24 La Mesa #2
25 San Miguel #4
26 San Miguel #5
27 San Miguel #6
28 San Miguel #7
29 San Miguel #8
30 Chaparral Wastewater Treatment Plant
31 Chaparral #6
32 Chaparral #8
33 Chaparral #9
Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025
208 Mercantile Ave La Union, NM 990 Mercantil Ave La Union, NM 6861 McNutt Rd La Union, NM 9700 Highway 28 Chamberino, NM 300 Lopez Rd Chamberino, NM 159 Shrode Rd Anthony, NM 1980 Hwy 478 Anthony, NM 22 Las Palmeras Rd Anthony, NM 111 Berino Rd Berino, NM 13000 Montes Rd La Mesa, NM 60 Singh Rd Vado, NM 195 Ward Vado, NM 99 Myers Vado, NM 801 Vado Vado, NM 320 Holguin Vado, NM 55 Chihuahua Ave Vado, NM 8599 Hwy 478 Vado, NM 18 Abanico Vado, NM 760 San Jose Rd La Mesa, NM 376 San Miguel St La Mesa, NM 350 Cascade Ave San Miguel, NM 205 Tierra Del Sol San Miguel, NM 18801 Highway 28 San Miguel, NM 225 Maplewood Ave. San Miguel, NM 13 Las Colmenas Rd San Miguel, NM 190 Chaparral Drive Chaparral, NM 101 Lisa Drive Chaparral, NM 311 La Poloma Blanca Dr. Chaparral, NM 443 Hermosa Dr. Chaparral, NM
The clarified wastewater thence is decanted after settling and flows to the two banks of Ultraviolet (UV) disinfection units. Effluent flow is measured through a parshall flume/ultrasonic flow meter and discharged to the Rio Grande. The facility has made several improvements within the previous couple of years including installation of new headworks, automatic barscreen cleaner, grit removal system, new influent lift station, an upgraded UV disinfection system and a cascading aerator structure.
Section II - OBSERVATIONS
I observed the following and/or the following information was provided or stated in the completed CMOM (Appendix 1):
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Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025 A review of the Doa Ana County/South Central WWTP s (Doa Ana County) completed CMOM SelfAssessment: General Information (page 2)- indicates an average dry weather flow 0.492 MGD and a design capacity 1.05 MGD.
A review of the Doa Ana County's completed CMOM Self-Assessment: Collection System Information (page 3)- indicates 21 lift or pump stations (LS)/PS), and an approximate service area of 13 square miles. Further discussion regarding the CMOM indicates that 98% of the total piping equates to 0-25years old. The CMOM further states 100% of the gravity sewer piping is constructed of polyvinyl chloride (PVC), while 93% of the force mains are PVC. Note: the LS quantity differs from the total number of lift stations previously provided by Doa Ana County and identified in Table 1 above.
A review of the Doa Ana County's completed CMOM Self-Assessment: Satellite Communities and Sewer Use Ordinance (SUO) (page 6)- indicates the total area from satellite communities that contribute flow to the collection system equates to approximately 0.82 square miles (approximately 6% of the stated service area of 13 square miles) (SUO-02).
A review of the Doa Ana County's completed CMOM Self-Assessment: Organizational Structure (OC) (page 8)- indicates 40% of current staffing positions are vacant (OC-04). Note: It was stated 4 new positions were added i.e. 2- Water/Wastewater Supervisors and 2- Water/Wastewater operator 4. These positions are in the process of being posted. On average the utility worker (laborer) positions are filled within the first posting, if it's a licensed position for instance a Level 4 then it has taken over 12 months. Doa Ana County recently increased operator pay significantly to address this issue (OC-05). Furthermore, approximately 20% of utility work is contracted out, inclusive of sewer tap installs, some emergency jetting services, sewer line break repairs, and major repairs like lift station rehabilitations or manhole rehabilitation projects. All other operations are done by DAC Staff (OC-06).
A review of the Doa Ana County's completed Self-Assessment: Budgeting (BUD) (page 10 and 11) indicates user charges are evaluated and adjusted annually (BUD-02). Additionally, the current Capital Improvement Plan (CIP) includes receipt of $1,075,000 for supervisory control and data acquisition (SCADA) upgrades; $85,000 for ultraviolet (UV) system spare parts; various State Grants for manhole rehabilitation, wastewater improvements, and back-up power generators. Furthermore, 3 additional generators have been or will be installed in the collection system (Lift Stations) and 2 additional will be installed in 2026 (BUD-08). Currently one budget (100%) focuses on operations, maintenance, corrective, and predictive maintenance. Emergency maintenance is typically covered depending on the size of the emergency. If additional funds are needed Doa Ana County provides them from general fund. (BUD-09).
A review of the Doa Ana County's completed Self-Assessment: Training (TR) (page 12 and page 13) indicates the utility does not have a formal job knowledge, skills, and abilities (KSA) training program (TR-01), does not provide training in bursting / CIPP (cured-in-place pipe), or public relations (TR05). Additionally, the completed CMOM indicates on-the-job (OJT) training progress and performance measures are not measured (TR-08). Furthermore, the CMOM indicates current employees are generally all trained on-the-job (80%), and industry-wide training (20%) (TR-10).
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Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025
A review of the Doa Ana County's completed CMOM Self-Assessment: Safety (SAF) (page 13 and page 14) does not indicate the utility has a safety committee (SAF-03). It is also stated the utility does not hold or conduct regular safety meetings (SAF-04) though the county has a safety department that holds safety training and meetings, and the program is structured for all county departments and is not dedicated to utilities alone (SAF-05). Additionally, the utility does not have written procedures for chemical handling, traffic control and work site safety, electrical and mechanical systems, pneumatic and hydraulic system safety (SAF-07). Furthermore, the utility states the following equipment items are not available or in adequate supply, 5-minute escape breathing devices, respirators and/or self-contained breathing apparatus and Methane gas or optical vector (OVA) analyzer (SAF-09).
A review of the Doa Ana County's completed CMOM Self-Assessment: Customer Service (CS) (page 15 and page 16) does not indicate the utility has a customer service and public relations program (CS01). The utility also indicates employees are not specifically trained in customer service (CS-03), or is sample correspondence, Q/A's, or "scripts" to help guide staff through written or oral responses to customers (CS-04) or is a customer service evaluation program to obtain feedback from the community in place (CS-08). However, major construction or maintenance work is posted on the Doa Ana County Website and mentioned in public community meetings (CS-05). Note: The completed CMOM states 95% of customer complaints (or emergency calls) are resolved within the timeline goals (CS-11).
A review of the Doa Ana County's completed CMOM Self-Assessment: Equipment & Collection System Maintenance (ESM) (page 17 and page 18) indicates the utility does not maintain maintenance recommendations or instructions on conducting the specific maintenance activity (ESM02), 15% repair funds are spent on emergency repairs (ESM-05), corrective repair work orders are not backlogged more than six months (ESM-06) and collection system personnel do not coordinate with state, county, and local personnel on repairs, before the street is paved (ESM-07).
A review of the Doa Ana County's completed CMOM Self-Assessment: Equipment Parts Inventory (EPI) (page 18) indicates the utility does not have a parts standardization policy in place (EPI-03), does not have a system in place to track and/or maintain an accurate inventory of spare parts (EPI06).
A review of the Doa Ana County's completed CMOM Self-Assessment: Management Information System (MIS) (page 19 and page 20) indicates there are not written instructions for managing customer service, or scheduled system inventory (MIS-04). Furthermore, the CMOM indicates there are no written instructions for accessing data and information, instructions for using the tracking system, updating the MIS or developing and printing reports (MIS-05).
A review of the Doa Ana County's completed CMOM Self-Assessment: System Mapping (MAP) (page 21 and page 22) indicates the System Mapping does not record the following location of sanitary
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Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025 sewer overflow (SSO) occurrences (MAP-04). Also, that separate manhole attributes are not recorded, inclusive of type (precast, cast in-place, etc.) (MAP-06).
A review of the Doa Ana County's completed CMOM Self-Assessment: Internal TV Inspection (TVI) (page 23) indicates the utility does not have a standardization pipeline condition assessment program (TVI-01). Furthermore, a rating system is not used to determine the severity of the defects found during the inspection process (TVI-05), though the total defects determined by TV inspection, during the past 5, years were attributed to the following: debris/grease/roots, intruding tap/roots, offset joint/grease, and line failure were not identified (TVI-07).
A review of the Doa Ana County's completed CMOM Self-Assessment: Manhole Inspection and Assessment (MAN) (page 26) indicates the city does not have routine manhole inspection and assessment program due to lack of staff (MAN-01), or a grouting program (MAN-06). Note: Currently the county is in the process of posting additional staff positions, thus this Recommendation may become possible.
A review of the Doa Ana County's completed CMOM Self-Assessment: Pump Stations (PS) (page 28) indicates there is not a procedure for manipulating pump operations during wet weather to increase in-line storage of wet weather flows (PS-07) and the lead, lag, and backup pumps are not rotated regularly (PS-09). Additionally, the completed CMOM indicates that 29% of the pump stations (LSs) have back-up power sources or approximately 10 of the 33 listed in Table 1 above or approximately 6 stated in the CMOM (PS-05).
A review of the Doa Ana County's completed CMOM Self-Assessment: Capacity Assessment (CA) (page 29 and page 30) indicates that the city does not have a flow monitoring program (CA-01), a comprehensive capacity assessment and planning program (CA-02), or a tool (hydraulic model, spreadsheet, etc.) for assessing whether adequate capacity exists in the sewer system (CA-04).
A review of the Doa Ana County's completed CMOM Self-Assessment: Tracking SSOs (TRK) (page 31 and page 32) indicates the county, reported 1 sanitary sewer overflow event (SSO) in the past 5 years (TRK-01) and the event amounted to less than 1,000-gallons (TRK-02). The SSO was from a manhole (TRK-06) and was caused by debris/grease (TRK-07) with the resulting overflow to private property (TRK-07A).
A review of the Doa Ana County's completed CMOM Self-Assessment: Overflow Emergency Response Plan (OERP) (page 34 and page 35) indicates the city does not have a documented OERP available for utility staff to use (OERP-01) and does not include a current list of the names, titles, telephone numbers, and responsibilities of all personnel involved (OERP-07), but does utilize a public notification plan through the county Public Information Department (OERP-03), and implements procedures to limit public contact with affected areas with assistance from the Roads Department (OERP-09).
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Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025 A review of the Doa Ana County's completed CMOM Self-Assessment: Smoke & Dye Testing (SDT) (page 36 and page 37) indicates the city does not have a have a smoke testing program to identify sources of inflow and infiltration (SDT-01).
A review of the Doa Ana County's completed CMOM Self-Assessment: Hydrogen Sulfide Monitoring and Control (HSMC) (page 38 and page 39) indicates the system vulnerability for hydrogen sulfide corrosion as a major problem (HSMC-01). The county's chemical vendor (Evoqua) administers Bioxide to control hydrogen sulfide in collection system at 7 locations (HSMC-04) and records dosage, dates and location (HSMC-04 and HSMC-05). Additionally, these other methods are not used for hydrogen sulfide control- iron salts, enzymes, activated charcoal canisters, chlorine, sodium hydroxide, hydrogen peroxide, potassium permanganate, or biofiltration (HSMC-08), or are the valves maintained and inspected on a regular basis (HSMC-10).
Section III - AREAS OF CONCERN/RECOMMENDATIONS
A review of the of the CMOM self-assessment completed by the Doa Ana County's, and additional supporting information, indicates some of the following could be beneficial:
Recommend a clarification of the quantity of lift stations associated with the Doa Ana County's collection systems completed CMOM Self-Assessment. The CMOM indicates 21 lift or pump stations, but information previously provided by the county with respect to name and location indicated 33 identified in Table 1 above.
Preparation of a training program specially related to routine line maintenance, record keeping, electrical and instrumentation, pipe repair, bursting / CIPP (cured-in-place pipe), public relations or CCTV (closed-circuit television) and trench/shoring.
Preparation of a safety program specifically related to written procedures for chemical handling, traffic control and work site safety, electrical and mechanical systems, pneumatic and hydraulic system safety and acquisition of equipment such as- 5-minute escape breathing devices, respirators and/or selfcontained breathing apparatus and Methane gas or optical vector (OVA) analyzer.
Preparation of an Equipment & Collection System Maintenance program or protocol to maintain or record maintenance recommendations or instructions on conducting the specific maintenance activity, emergency repairs, and corrective repair work orders.
Preparation of an Equipment Parts Inventory program regarding a parts standardization policy and/or a system in place to track and/or maintain an accurate inventory of spare parts.
Preparation of written instructions for managing customer service, or scheduled system inventory and for accessing data and information, instructions for using the tracking system, updating the Management Information System (MIS) or developing and printing reports.
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Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025 Preparation of a System Mapping (MAP) program to record the following location(s) of sanitary sewer overflow (SSO) occurrences and delineate separate manhole attributes i.e. type (precast, cast in-place, etc.).
Preparation of an Internal TV Inspection (TVI) program which could include a standardization pipeline condition assessment program, and a rating system to determine the severity of the defects found during the inspection process, attributed to the following: debris/grease/roots, intruding tap/roots, offset joint/grease, and line failure.
Preparation of a Manhole Inspection and Assessment (MAN) program related to routine manhole inspection and assessment program or a grouting program. Note: Currently the county is in the process of posting additional staff positions, thus this Recommendation may become possible.
Preparation of a Capacity Assessment (CA) program regarding flow monitoring, a comprehensive capacity assessment and planning program, or a tool (hydraulic model, spreadsheet, etc.) for assessing whether adequate capacity exists in the sewer system.
Preparation of an Overflow Emergency Response Plan (OERP) available for utility staff to use, inclusive of the current list of the names, titles, telephone numbers, and responsibilities of all personnel involved. Note: the county does utilize a public notification plan through the county Public Information Department and implements procedures to limit public contact with affected areas with assistance from the Roads Department.
Preparation of a valve exercising program, inclusive of maintenance and inspection on a regular basis. Though Doa Ana County's Hydrogen Sulfide Monitoring and Control (HSMC) completed CMOM indicates the system vulnerability for hydrogen sulfide corrosion as a major problem. The county's chemical vendor (Evoqua) administers Bioxide to control hydrogen sulfide in the collection system at 7 locations and records dosage, dates and location.
ADDITIONAL AREAS OF CONCERN:
A review of the submitted Integrated Compliance Information System (ICIS) Discharge Monitoring Reports (DMR) data for the period June 30, 2023, through July 31, 2024, indicates the WWTP reported 20 excursions with respect to dissolved Oxygen (DO) and one (1) excursion related to Escherichia coli (E. coli) (Appendix 2 ICIS E90 Effluent Violations).
A review of the Doa Ana County's completed CMOM Self-Assessment and county reporting indicates 1 sanitary sewer overflow event (SSO) in the past 5 years, and the event amounted to less than 1,000-gallons. Furthermore, it was reported the SSO was from a manhole and was caused by debris/grease with the resulting overflow to private property.
EPA Region 6 inspector David Esparza, PE conducted a closing conference at the Doa Ana County/South Central Wastewater Treatment Plant (WWTP) at approximately 5:00 PM on November 19, 2025, for the
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Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025 inspection. During the closing conference, David Esparza discussed the requested completion of the Capacity, Management, Operation and Maintenance (CMOM) Self-Assessment document. Section IV - FOLLOW UP The following information and/or clarification was received by EPA after exiting on November 19, 2025, 2025: Completed Capacity Management Operations and Maintenance Self-Assessment (completed on December 9, 2025, and received on January 17, 2026). Section V - LIST OF APPENDICES Appendix 1 - Capacity Management Operations and Maintenance Self-Assessment Appendix 2 - ICIS E90 Effluent Violations
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Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025
Appendix 1
Capacity Management Operations and
Maintenance Self-Assessment (CMOM)
CAPACITY, MANAGEMENT, OPERATION AND
MAINTENANCE (CMOM) Program Self-Assessment
Compiled By: Name: ___Mireya Rascon________________ Title: ______Assistant Director, Utilities______ Date: ______December 9th, 2025___________
1
Staffing list and Organization chart: Attach separate document as needed
General Information
Service area Annual precipitation
~ 13 sq miles
SQ. MILES
9.27" in 2025 inches*
NUMBER
Service population
Approx.. 3200 service connections
Approx.12,800
PEOPLE
*Find your annual New Mexico precipitation here: https://wrcc.dri.edu/summary/Climsmnm.html
# of Treatment Facilities
1
NUMBER
WWTP design capacity
1.05 MGD
MGD
Average Daily Flow Manholes
0.395 MGD
MGD
821
NUMBER
Average dry weather flow
Number of air vacuum relief valves
0.492 MGD
MGD
~ 20
NUMBER
Service Area Characteristics Residential Industrial
Multi-Family
Total
99% 0
0
NUMBER
Commercial Institutional
Other
NUMBER
1% 0 0
NUMBER
Collection system service lateral responsibility (check one)
At main line connection only
From main line to property line or easement/cleanout
Beyond property line/clean out
Other:
Comments: P r o p e r t y o w n e r s r e s p o n s i b l e f o r t h e i r e n t i r e s e r v i c e l i n e i f clogged.
2
What percent of sewer system is served by combined sewers (i.e., sanitary sewage and storm water in the same pipe)?
0%
PERCENT
Collection System Information
Conveyance & Pumping
Gravity Sewers
Pipes and pumps: Length/quantity
100
MILES
Age of system: 0-25 years old
98%
PERCENT
26-50 years old
-----
PERCENT
51-75 years old
-----
PERCENT
>75 years old
-------
PERCENT
Number of Inverted N/A siphons
Pump Stations Stations Force
Mains
21
NUMBER
22.73
MILES
21 22.73
NUMBER
PERCENT
----
NUMBER
----
PERCENT
----
NUMBER
----
PERCENT
-----
NUMBER
-----
PERCENT
Vacuum Stations
Stations Vacuum Lines
Force Mains
N/A
NUMBER
N/A
MILES
N/A
MILES
NUMBER
PERCENT
PERCENT
NUMBER
PERCENT
PERCENT
NUMBER
PERCENT
PERCENT
NUMBER
PERCENT
PERCENT
NUMBER
Pipe Diameter Information 8 inches or less 9 - 14 inches 15 - 36 inches > 36 inches
Gravity Sewers 100%
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
Force Mains 99%
PERCENT
1%
PERCENT
N/A
PERCENT
N/A
PERCENT
Vacuum Lines 0%
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
3
Comments:
Pipe Material Information
Prestressed concrete cylinder pipe (PCCP)
High density polyethylene (HDPE)
Reinforced concrete pipe (RCP)
Polyvinyl Chloride (PVC)
Vitrified Clay Pipe
Cast Iron Pipe (CIP), Ductile Iron Pipe (DIP)
Non-reinforced concrete pipe
Asbestos cement pipe
Brick
Fiberglass
Cured in Place
Comments:
Fold and Form
Gravity Sewer
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
100%
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
Force Mains
N/A
PERCENT
3%
PERCENT
N/A
PERCENT
93%
PERCENT
N/A
PERCENT
3%
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
Vacuum Lines
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
N/A
PERCENT
4
Engineering Design (ED)
ED-01
Checklist Item Is there a document which includes design criteria and standard construction details?
Comments: DAC Construction Standards
ED-02
Is there a document that describes the procedures that the utility follows in construction design review?
Comments:
ED-03 ED-04 ED-05
ED-06 ED-07 ED-08 ED-09
Are WWTP and O&M staff involved in the design review process? Comments:
Is there a procedure for testing and inspecting new or rehabilitated system elements both during and after the construction is completed? Comments:
Are construction sites supervised by qualified personnel (such as professional engineers) to ascertain the construction is in accordance with the agreed upon plans and specifications? Comments:
Are new manholes tested for inflow and infiltration? Comments:
Are new gravity sewers checked using closed circuit TV inspection? Comments:
Does the utility have documentation on private service lateral design and inspection standards? Comments:
Does the utility attempt to standardize equipment and sewer system components? Comments:
Yes No N/A
5
Comments:
Satellite Communities and Sewer Use Ordinance (SUO) Checklist Item
SUO-01 Does the utility receive flow from satellite communities? IF NO, GO TO NEXT SECTION
Comments:
Yes No N/A
SUO-02 What is the total area from satellite communities that contribute flow to the collection system? (Acres or square miles) 0.82 square miles Comments:
SUO-03 Does the utility require satellite communities to enter into an agreement? IF NO, GO TO QUESTION SUO-06 Comments:
SUO-04 Does the agreement include the requirements listed in the sewer use ordinance? Comments:
SUO-05 Do the agreements have a date of termination and allow for
renewal under different terms?
Comments:
SUO-06 Does the utility maintain a legal authority to control the
maximum flow introduced into the collection system from
satellite communities?
Comments:
SUO-07 Are standards, inspections, and approval for new
connections clearly documented in a SUO?
Comments:
SUO-08 Does the SUO require satellite communities to adopt the same
industrial and commercial regulatory discharge limits as the
utility?
Comments:
SUO-09 Does the SUO require satellite communities to adopt the same
inspection and sampling schedules as required by the
pretreatment ordinance?
6
Comments:
SUO-10
Does the SUO require satellite communities or the utility to issue control permits for significant industrial users?
Comments:
Checklist Item
SUO-11 Does the SUO contain provisions for addressing overstrength wastewater from satellite communities? Comments:
SUO-12
Does the SUO contain procedures for the following? Inspection standards Pretreatment requirements Building/sewer permit issues Comments:
SUO-13 Does the SUO contain general prohibitions of the following materials?
Fire and explosion hazards Corrosive materials Obstructive materials Oils or petroleum Material which may cause interference at the wastewater treatment plant Comments:
SUO-14
Does the SUO contain procedures and enforcement actions for the following?
Fats, oils, and grease (FOG) Infiltration and inflow Building structures over the sewer lines Storm water connections to sanitary lines (downspouts) Defects in service laterals located on private property Sump pumps, air conditioner connections Comments:
Comments:
Yes No N/A
7
Organizational Structure (OC)
Checklist Item
OC-01
Is an organizational chart available that shows the overall personnel structure for the utility, including operation and maintenance staff?
Comments:
Yes No N/A
OC-02 OC-03
Are up-to-date job descriptions available that delineate responsibilities and authority for each position? Comments:
Are the following items discussed in the job descriptions? Nature of work to be performed Minimum requirements for the position Necessary special qualifications or certifications Examples of the type of work List of licenses required for the position Performance measures or promotion potential Comments:
OC-04 OC-05
What percent of staff positions are currently vacant?
40%
Comments: reason being that we added 4 new positions we didn't have before which are 2- Water/Wastewater Supervisors
and 2- Water/Wastewater operator 4. We currently are just going to post these. Original # of positions before were only 11.
On average how long do positions remain vacant? (months)
Depends on position
Comments: For a utility worker (laborer) fills fast within first posting. But if it's a
licensed position for instance a Level 4 then it has taken over 12 months. DAC
recently increased operator pay significantly to address this issue.
OC-06
What percent of utility work is contracted out?
20%
Comments: Sewer Tap installs, Some emergency jetting services, sewer line break
repairs, and major repairs like lift station rehabs or manhole rehab projects. All
operations are done by DAC Staff.
8
Comments:
Internal Communications (IC) Checklist Item
IC-01 Which of the following methods are used to communicate with utility staff?
Regular meetings Bulletin boards E-mail Cell Phones Other (explain) Comments:
Yes No N/A
IC-02 How often are the staff meetings held? (e.g., Daily, Weekly, Monthly, etc.)
Comments: When needed only since there is constant communication.
IC-03 Are incentives offered to employees for performance improvements?
Comments: If a higher certification is obtained they are automatically reclassified with higher pay
IC-04 Does the utility have an
"Employee of the Month/Quarter/Year" program?
Comments:
IC-05 How often are performance reviews conducted? (e.g. Semi-annually, Annually, etc.)
Comments: Annually
IC-06 Does the utility regularly communicate/coordinate with other
municipal departments?
Comments:
9
Comments:
Budgeting (BUD)
Checklist Item
Yes No N/A
BUD-01 What is the average annual fee for residential users?
Comments: $ 6 0 7 . 9 2 p e r y e a r . $ 5 0 . 6 6 p e r m o n t h
BUD-02
How often are user charges evaluated and adjusted? (e.g. annually, biannually. etc.)
Comments: a n n u a l l y
BUD-03 Are utility-generated funds used for non-utility programs?
Comments:
BUD-04 Are costs for collection system operation and maintenance (O&M)
separated from other utility services such as water, storm water,
and treatment plants? IF NO, GO TO BUD-07
Comments:
BUD-05 What is your average annual (O&M) budget? Comments:
BUD-06 What percentage of the utility's overall budget is allocated to maintenance of the collection system? Comments:
BUD-07 Does the utility have a Capital Improvement Plan (CIP) that
provides for system repairs/replacements on a prioritized basis?
Comments:
BUD-08 What is your average annual CIP budget? Depends on project 10
Comments: Received $1,075,000 for Scada Upgrades; $85,000 for UV system spare parts; Various State Grants for manhole rehabs, Wastewater improvements, and back up power generators install. Installed 3 additional generators in the collection system (Lift Stations) and 2 additional will be installed in 2026.
Comments:
BUD-09
Checklist Item
Yes No N/A
What percentage of the maintenance budget is allotted to the following maintenance?
Predictive maintenance - All one budget for operations, maintenance, corrective, and predictive maintenance so 100%
Preventive maintenance -
Corrective maintenance -
Emergency maintenance - Depends on size of emergency. If our budget can cover it we cover it. If additional funds are needed DAC provides them from general fund.
Comments:
BUD-10 Does the utility have a budgeted program for the
replacement of under-capacity pipes?
Comments:
BUD-11 Does the utility have a budgeted program for the
replacement of over-capacity pipes?
Comments:
11
Comments:
Training (TR)
Checklist Item
TR-01
Does the utility have a formal job knowledge, skills, and abilities (KSA) training program?
Comments:
Yes No N/A
TR-02 Does the training program address the fundamental mission,
goals, and policies of the utility?
Comments:
TR-03 Does the utility have mandatory training requirements
identified for key employees?
Comments:
TR-04 TR-05
What percentage of employees met or exceeded their annual training goals during the past year?
Comments: 1 0 0 % A l l m a n d a t o r y t r a i n i n g r e q u i r e d b y DAC is done by employees. Does the utility provide training in the following areas?
Safety
Routine line maintenance
Confined space entry
Traffic control
Record keeping
Electrical and instrumentation
Pipe repair
Bursting / CIPP
Public relations
SSO/Emergency response
Pump station operations and maintenance
12
CCTV and trench/shoring
Other
Comments:
TR-06 TR-07 TR-08
Are operator and maintenance certification programs used? IF NO GO TO TR-08
Comments: Are operator and maintenance certification programs required?
Comments: For appropriate personnel. Is on-the-job training progress and performance measured? Comments:
TR-09
Checklist Items
Yes No NA
Which of the following methods are used to assess the effectiveness of the training?
None
Periodic testing
Drills
Demonstrations
Comments:
TR-10 What percentage of the training offered by the utility is in the form of the following?
Manufacturer training On-the-job training 80% In-house classroom training Industry-wide training 20% Comments:
Safety (SAF)
Checklist Item
Yes No N/A
SAF-01 Does the utility have a written safety policy?
Comments:
SAF-02 How often are safety procedures reviewed and revised? (Annually, quarterly, etc.)
Comments: A n n u a l l y
SAF-03 Does the utility have a safety committee?
13
Comments: We have a risk management dept that provides training and oversees safety for all depts.
SAF-04 Are regular safety meetings held with the utility employees?
How often?
Comments:
SAF-05 Does the utility have a safety training program?
Comments: provided by Risk Management Dept.
SAF-06 Are records of employee safety training kept up to date?
Comments:
SAF-07
Checklist Item Does the utility have written procedures for the following? Lockout/tagout Material safety data sheets (MSDS) Chemical handling Confined spaces permit programs Trenching and excavations safety Biological hazards in wastewater Traffic control and work site safety Electrical and mechanical systems Pneumatic and hydraulic system safety Comments:
Yes No N/A
SAF-08 SAF-09
What is your agency's lost-time injury rate?
0%
Comments: H a v e n ' t h a d i n j u r i e s i n p a s t c o u p l e y e a r s
Are the following equipment items available and in adequate supply?
Rubber/disposable gloves
Confined space ventilation equipment
Hard hats, safety glasses, rubber boots
Antibacterial soap and first aid kit
Tripods or non-entry rescue equipment
Fire extinguishers
Equipment to enter manholes
Portable crane/hoist
Atmospheric testing equipment and gas detectors
Oxygen sensors
H2S Monitors
Full body harness
14
SAF-10
Protective clothing Traffic/public access control equipment 5-minute escape breathing devices Life preservers for lagoons Life preservers at activated sludge plants Fiberglass or wooden ladders for electrical work Respirators and/or self-contained breathing apparatus Methane gas or optical vector (OVA) analyzer Lower explosion limit (LEL) metering Comments:
Are safety monitors clearly identified? Comments:
Customer Service (CS) Checklist Item
CS-01 Does the utility have a customer service and public relations program? IF NO GO TO CS-03
Comments:.
Yes No N/A
CS-02 Does the customer service program include giving formal presentations on the wastewater field to the following?
Schools and universities Community gatherings Local officials Businesses Media Citizens Building Inspector(s) Public utility officials Comments:
CS-03 Are employees of the utility specifically trained in customer
service?
Comments:
CS-04 Are there sample correspondence, Q/A's, or "scripts" to help
guide staff through written or oral responses to customers?
15
Comments:
CS-05
What methods are used to notify the public of major construction or maintenance work?
Door hangers
Public radio or T.V. announcements
Newspaper
Flyers
Signs
Other
None
Comments: p o s t o n D A C W e b s i t e a l s o a n d m e n t i o n e d i n
public community meetings.
CS-06
Checklist Item
Is a homeowner notified prior to construction that his/her property may be affected? Comments:
CS-07
Do you provide information to residents on cleanup and safety procedures following basement backups and overflows from manholes when they occur?
Comments:
Yes No N/A
CS-08 Does the utility have a customer service evaluation program to
obtain feedback from the community?
Comments:
CS-09 Do customer service records include the following information?
Personnel who received the complaint or request
Nature of the complaint or request
To whom the follow-up action was assigned
Date of the complaint or request
Date the complaint or request was resolved
Total days to end the problem
Name, address, and telephone number of the customer
Location of the problem
Date the follow up action was assigned
Cause of the problem
16
Feedback to customer Comments: This is thru our workorder system
CS-10
Does the utility have a goal for how quickly customer complaints (or emergency calls) are resolved? IF NO, GO TO NEXT SECTION Comments:
CS-11 What percentage of customer complaints (or emergency calls) are resolved within the timeline goals? Comments: 95%
Equipment & Collection System Maintenance (ESM)
Checklist Item
ESM-01
Is a maintenance card or record kept for each piece of mechanical equipment within the collection system? IF NO, GO TO ESM-03
Comments:
Yes No N/A
ESM-02 Do equipment maintenance records include the following information?
Maintenance recommendations
Instructions on conducting the specific maintenance activity
Other observations on the equipment
Maintenance schedule
A record of maintenance on the equipment to date
Comments:
ESM-03 Are dated tags used to show out-of-service equipment?
Comments:
ESM-04 Is there an established system for prioritizing equipment
maintenance needs?
Comments: schedules per manufacturers recommendations
ESM-05 What percent of repair funds are spent on emergency repairs?
15%
Comments:
17
ESM-06 Are corrective repair work orders backlogged more than six
months?
Comments:
ESM-07 Do collection system personnel coordinate with state, county,
and local personnel on repairs, before the street is paved?
Comments:
Comments:
Equipment Parts Inventory (EPI)
EPI-01
Checklist Item Have critical spare parts been identified? Comments:
EPI-02
Are adequate supplies on hand to allow for two-point repairs in any part of the system?
Comments:
Yes No N/A
EPI-03 EPI-04
Is there a parts standardization policy in place?
Comments: N o w r i t t e n p o l i c y b u t w e d o s t a n d a r d i z e
Does the utility have a central location for storing spare parts?
Comments:
EPI-05 Does the utility maintain a stock of spare parts on its
maintenance vehicles?
Comments: M a i n t e n a n c e O p e r a t o r s d o .
EPI-06 Does the utility have a system in place to track and maintain an
accurate inventory of spare parts?
Comments:
18
EPI-07 For those parts which are not kept in inventory, does the
utility have a readily available source or supplier?
Comments:
Comments:
Management Information System (MIS) Checklist Item
MIS-01
Does the utility have a management information system (MIS) in place for tracking maintenance activities? (Either electronic or good paper files) IF NO, GO TO NEXT SECTION
Comments:
Yes No N/A
MIS-02 Are the MIS records maintained for a period of at least three
years?
Comments:
MIS-03 Is the MIS able to distinguish activities taken in response to
an overflow event?
Comments:
MIS-04
Are there written instructions for managing and tracking the following information? (Check all that apply)
Complaint work orders
Schedule work orders Customer Service
Scheduled preventive maintenance
19
MIS-05
Scheduled Inspections
Scheduled system inventory Safety incidents
Scheduled monitoring/sampling
Compliance/overflow tracking
Equipment/tools tracking
Parts inventory
Do the written instructions for tracking procedures include the following information?
Accessing data and information
Instructions for using the tracking system
Updating the MIS
Developing and printing reports
Comments:
MIS-06
Checklist Item How often is the management information system updated?
Immediately Within one week of the "incident" Monthly Other: Comments:
Yes No N/A
Comments:
20
System Mapping (MAP)
Checklist Item
MAP-01 Are "as built" plans (record drawings) or maps available for use by field crews in the office and in the field?
Comments:
MAP-02
Is there a procedure for field crews to record changes or inaccuracies in the maps and update the mapping system?
Comments:
Yes No N/A
MAP-03 Do the maps show the date the map was drafted and the
date of the last revision?
Comments:
Comments:
MAP-04
Checklist Item Do the sewer line maps include the following? Scale North arrow Date the map was drafted Date of last revision Service area boundaries Property lines Other landmarks (Roads, water bodies, etc.) Manhole and other access points Location of building laterals Street names SSOs occurrences/CSOs outfalls Flow monitors Force mains Pump stations Lined sewers Main, trunk, and interceptor sewers Easement lines and dimensions Pipe material
21
Yes No N/A
Pipe diameter Installation date Slope Manhole rim elevation Manhole coordinates Manhole invert elevation Distance between manholes Comments:
MAP-05 Are the following sewer attributes recorded? Size Shape Invert elevation Material Separate/combined sewer Installation date Comments:
MAP-06
Checklist Item Are the following manhole attributes recorded? Shape Type (e.g., precast, cast in place, etc.) Depth Age Material Comments:
Yes No N/A
MAP-07 Is there a systematic numbering and identification system to
identify manholes, sewer lines, pump station, etc.?
Comments:
22
Internal TV Inspection (TVI)
Checklist Item
Yes No N/A
TVI-01 Does the utility have a standardization pipeline condition assessment
program? If yes, explain
Comments:
TVI-02 Is internal TV inspection used to perform condition assessment?
IF NO, GO TO NEXT SECTION
Comments: when issues arise only
TVI-03 Are there written operation procedures/guidelines for the internal TV
inspection program?
Comments:
TVI-04 Do the internal TV record logs include the following?
Pipe size, type, length, and joint spacing
Distance recorded by internal TV
Results of the internal TV inspection (including a structural rating)
Internal TV operator name
Cleanliness of the line
Location and identification of line being televised by manholes
Comments: Just us camera inspection to fix issues and find sewer services
TVI-05 Is a rating system used to determine the severity of the defects
found during the inspection process?
Comments:
TVI-06 Is there a code list used for internal TV inspection reporting?
Approximately what percent of the total defects determined by TV inspection, during the TVI-07 past 5, years were attributed to the following?
Debris
50%
Debris/Grease
50%
Debris/Roots
Grease
Grease/Roots
Intruding Tap
Intruding Tap/Roots
23
Surcharged Offset Joint/Grease Roots Roots/Debris Roots/Grease Roots/Grease/Debris Roots/Line Failure Line Failure Sag In Line Sag In Line/Debris Sag In Line/Grease Other: Other: Total Percentage Comments:
TVI-08 Are main line and lateral repairs checked by internal TV
Ciommeni ts: f h
i ( )h b
d?
Sewer Cleaning (CLN
Checklist Item
CLN-01
Is there a program to identify sewer line segments, with chronic
problems, that should be cleaned on a more frequent schedule?
Yes No NA
Comments: No specific program we just do line flushing in known problem areas.
CLN-02 CLN-03
What is the entire system cleaning frequency? (e.g., every "X" years)
Comments: Only when we notice potential issues when inspecting collection system. What is the utility's plan for system cleaning (% or frequency in years)?
Comments: As needed, not enough staff for a collections crew
CLN-04
What percent of the total cleaning was considered repeat and trouble spot cleaning during the past year?
24
100%
CLN-05 CLN-06 CLN-07 CLN-08 CLN-09
Comments:
Does the utility have a root control program?
Comments:
Does the utility have a fats, oils, and grease (FOG) program?
Comments:
What is the average number of stoppages experienced per 100 miles of sewer pipe per year?
Comments: Not many per year
10 per year avg
Has the number of stoppages increased, decreased, or stayed the same over the past 5 years?
Comments: Stayed the same
Are stoppages plotted on maps and correlated with other data
such as pipe size and material or location?
Comments:
Comments:
CLN-10
Checklist Item
Yes No NA
Do the sewer cleaning records include the following information?
Date and time
Cause of stoppage
Method of cleaning
Location of stoppage or routine cleaning activity
Identity of cleaning crew
Further actions necessary/initiated
Comments: Don't log sewer cleaning since we don't have a dedicated collections crew. We clean mains as we have issues or see its needed. We just get it done
CLN-11 If sewer cleaning is done by a contractor, are videos taken
before and after cleaning?
25
Comments:
Manhole Inspection and Assessment (MAN)
Checklist Item
Yes No N/A
MAN-01 Does the utility have a routine manhole inspection and
assessment program? IF NO, GO TO MAN-06
Comments: W e d o b u t n o t R o u t i n e ; W h e n t i m e a l l o w s o r if we are doing manhole rehab project.
MAN-02
Are the results and observations from the routine manhole inspection recorded?
Comments:
MAN-03 MAN-04
Does the utility have a goal for the number of manholes
inspected annually?
Comments:
How many manholes were inspected during the past year? At least 400
What is the percent of total manholes were inspected during the
Comments: due to manhole rehab project and new gis system
Comments: Received State grant funding for Manhole rehabilitation.
Checklist Item
Yes No N/A
MAN-05 Do the records for manholes/pipe inspection include the following?
Conditions of the frame and cover
Evidence of surcharge
Offsets or misalignments
Atmospheric hazards measurements (especially hydrogen
sulfide)
Details on the root cause of cracks or breaks in the
manhole or pipe including blockages
Recording conditions of (corbel, walls, bench, trough, and
pipe seals)
Presence of corrosion
26
If repair is necessary
Manhole identifying number/location
Wastewater flow characteristics (flowing freely or backed
up)
Accumulation of grease, debris, or grit
Presence of infiltration, location, and estimated quantity
Inflow from manhole covers
Comments: Done for our manhole rehab project to get estimates from
contractor.
MAN-06 Does the utility have a grouting program?
Comments:
Comments:
Pump Stations (PS) Checklist Item
PS-01 Are Standard Operating Procedures (SOPs) and Standard Maintenance Procedures (SMPs) used for each pump station?
Comments:
PS-02
Are there enough trained personnel to properly inspect and maintain all pump stations?
Comments:
Yes No N/A
27
PS-03 Is there an emergency operating procedure for each pump
station?
Comments:
PS-04 Is there an alarm system to notify personnel of pump station
failures and overflow?
Comments:
PS-05 Percent of pump stations with backup power sources
29%
Comments:
PS-06
Does the utility use the following methods when loss of power occurs?
On-site electrical generators
Portable electric generators
Vacuum trucks to bypass pump station
Alternate power source
Other
Comments:
PS-07 Is there a procedure for manipulating pump operations during
wet weather to increase in-line storage of wet weather flows?
Comments:
Comments:
Checklist Item PS-08 Are wet well operating levels set to limit pump start/stops?
Comments:
PS-09 Are the lead, lag, and backup pumps rotated regularly? Comments:
PS-10 Are operation logs maintained for all pump stations? Comments:
28
Yes No N/A
PS-11 Are the manuals that contain the manufacturers recommended
maintenance schedules for all pump station equipment available?
Comments:
PS-12 On average, how often were pump stations inspected during the past year?
Comments: done annually
PS-13 Are records maintained for each inspection?
Comments:
PS-14 Average annual labor hours spent on pump station inspections Comments:
PS-15 Percent of pump stations with pump capacity redundancy Comments:
PS-16 Percent of pump stations with dry weather capacity limitations Comments:
PS-17 Percent of pump stations with wet weather capacity limitations Comments:
84hrs per year 100% 100% 100%
PS- Percent of pump stations calibrated annually
N/A
18 Comments:
PS- Percent of pump stations with permanent flow meters
1%
19 Comments:
Capacity Assessment (CA) Checklist Item
CA-01 Does the utility have a flow monitoring program? Comments: Only flow monitoring is at WWTP
CA-02
Does the utility have a comprehensive capacity assessment and planning program?
Yes No N/A
29
Comments:
CA-03 CA-04
Are flows measured prior to allowing new connections?
Comments: C o n t r a c t e d E n g i n e e r i n g f i r m c h e c k s L i f t S t a t i o n
capacity to determine if DAC will allow subdivisions.
Do you have a tool (hydraulic model, spreadsheet, etc.) for
assessing whether adequate capacity exists in the sewer
system? IF NO, GO TO CA-06.
Comments:
CA-05 Does your capacity assessment tool produce results
consistent with conditions observed in the system?
Comments:
CA-06
What is the ratio of peak wet weather flow to average dry weather flow at the wastewater treatment plant?
Comments: Majority of the year its dry.
CA-07 How many permanent flow meters are currently in the system?
4
(Include meters at pump stations and WWTPs)
Comments: 2 at lift stations and 2 at the South Central WWTP
CA-08 CA-09
How frequently are the flow meters checked? Comments: Calibrated by a 3rd party annually Do the flow meter checks include the following? Independent water level Checking the desiccant Velocity reading Cleaning away debris Downloading data Battery condition Comments:
Monthly by staff
Checklist Item
Yes No N/A
CA-10 Are records maintained for each inspection? IF NO, GO TO CA-12
Comments:
CA-11
Do the flow monitoring records include the following? 30
Descriptive location of flow meter
Type of flow meter
Frequency of flow meter inspection
Frequency of flow meter calibration
Comments:
CA-12 Does the utility maintain any rain gauges?
Comments:
CA-13 Does the utility have any wet weather capacity problems?
Comments:
CA-14 Are low points or flood-plain areas monitored during rain events? Comments:
CA-15
Does the utility have any dry weather capacity problems? Comments:
CA-16
Is flow monitoring used for billing purposes, capacity analysis, and/or inflow and infiltration investigations?
Comments:
Comments:
Tracking SSOs (TRK)
TRK-01
Checklist Item How many SSO events have been reported in the past 5 years?
Yes No N/A 1
31
Comments:
TRK-02
What % of SSOs were less than 1,000 gallons in the past 5 years? 1 Comments:
TRK-03
Does the utility document and report all SSOs regardless of size?
Comments:
TRK-04
Does the utility document basement backups?
Comments:
TRK-05
Are there areas that experience frequent street flooding?
Comments: f l o o d i n g c a u s e b y r a i n e v e n t s
TRK-06
What % of SSO discharges were from each of the following in the last 5 years?
Manholes
Lift/Vacuum Systems (Revised term)
Main and trunk sewers
Lateral and branch sewers
Total
Comments: was a private manhole
TRK-07
Checklist Item
Yes No N/A
What % of SSO discharges were caused by each of the following in the last 5 years?
Construction
32
Cause Unknown Debris Debris/Grease Debris/Roots Equipment Failure Grease Sag In Line Intruding Tap Line Failure Manhole/Surcharged Offset Joint Roots Roots/Debris Roots/Grease Roots/Intruding Tap Roots/Line Failure Surcharged Other(s): Grand Total
Comments:
100%
TRK-07A
Checklist Item What percentage of SSOs were released to: Storm Sewer Arroyo/Ditch/Drain Street/ Parking lot Private Property River/Stream/Lake/Bayou/Ocean Other: Grand Total Comments:
TRK-07B
For surface water releases, what percent are to areas that could affect: Contact recreation (beaches, swimming areas) Drinking water sources Shellfish growing areas Fishing or spawning areas Comments:
100%
n/a n/a n/a n/a
Checklist Item 33
Yes No N/A
TRK-08
How many chronic SSO locations are in the collection system? Comments:
TRK-09 TRK-10
Are pipes with chronic SSOs being monitored for sufficient capacity and/or structural condition? Comments:
Prior to collapse, are structurally deteriorating pipelines being monitored for renewal or replacement? Comments:
Comments:
0 n/a n/a
Overflow Emergency Response (OERP) Checklist Item
OERP-01 Does the utility have a documented OERP available for utility staff to use? IF NO, GO TO OERP-04
Comments:
OERP-02
How often is the OERP reviewed and updated? (Annually, Biannually, etc.)
Comments: N/A
OERP-03 OERP-04
Are specific responsibilities detailed in the OERP for personnel who respond to emergencies? Comments: Are staff continuously trained to respond to emergencies?
Comments: on the job training
OERP-05
Do work crews have immediate access to tools and equipment during emergencies?
Comments:
Yes No N/A
34
OERP-06
Checklist Item
Yes No N/A
Does the utility have procedures for notifying state agencies, local health
departments, the NPDES authority, the public, and drinking water
authorities of significant overflow events?
Comments: follow state and federal permits
OERP-07 Does the procedure include a current list of the names, titles, phone
numbers, and responsibilities of all personnel involved?
Comments:
OERP-08 Does the utility have a public notification plan?
Comments: Dona Ana County has a Public Information Dept that handles it.
OERP-09
Does the utility have procedures to limit public contact with areas
affected by SSOs? (can be delegated to another authority)
Comments: We get assistance from Roads Dept that provide barrels and signs.
OERP-10 Does the utility use containment techniques to protect storm systems? n/a Comments:
OERP-11 Do the overflow records include the following information?
Date and time
Cause(s)
Names of affected receiving water(s)
Location
How it was stopped
Any remediation efforts
Estimated flow/volume discharged
Duration of overflow
Comments: If SSO happen we report as required
OERP-12 Does the utility have signage to keep public from affected area?
35
Comments:
Smoke & Dye Testing (SDT) Checklist Item
SDT-01
Does the utility have a smoke testing program to identify sources of inflow and infiltration?
Comments:
Yes No N/A
SDT-01A Does the utility have a smoke testing program to identify sources of
inflow and infiltration in illegal connectors?
Comments:
SDT-01B Does the utility have a smoke testing program to identify sources of
inflow and infiltration in house laterals (private service laterals)?
Comments:
SDT-02 Are there written procedures for smoke testing? Comments:
SDT-03 Is there a documented procedure for isolating line segments? Comments:
SDT-04 Is there a documented procedure for notifying residents that smoke testing will be conducted in their area? Comments:
36
Comments: We don't do smoke testing currently.
SDT-05
Checklist Item What is the guideline for maximum amount of line to be tested at one time? (Feet or Miles)
Comments:
SDT-06
Are there guidelines for the weather conditions under which smoke testing should be conducted?
Comments:
SDT-07 What is the goal for the % of the system smoke tested each year?
Comments:
Yes No N/A
SDT-08
What % of the system has been smoke tested in the past 5 years? Comments:
SDT-09
Do the written records contain location, address, and description of the smoking element that produced a positive result?
Comments:
SDT-10
Does the utility have a dye testing program? Comments: no official program just done when needed.
SDT-11
Are there written procedures for dye testing? Comments:
0%
SDT-12 Does the utility have a goal for the percent of the system dye
tested each year?
Comments:
SDT-13 What percent of the main collection system had been dye tested 0% over the past year?
37
Comments: We do dye test to identify service connections if needed.
SDT-14 Does the utility share smoke and dye testing equipment with
another utility?
Comments:
Comments:
Hydrogen Sulfide Monitoring and Control (HSMC)
Checklist Item
Yes No N/A
HSMC-01 How would you rate the system vulnerability for hydrogen sulfide corrosion?
Not a problem
Only in a few isolated areas
A major problem
Comments:
HSMC-02 Does the utility have a corrosion control program?
Comments: We feed bioxide to control hydrogen sulfide in collection system. We
have 7 feed sites in this area.
HSMC-03 Does the utility take hydrogen sulfide corrosion into consideration
when designing new or replacement sewers?
Comments:
HSMC-04 Does the utility have procedures for application of chemicals? Comments: Done by Evoqua our bioxide chemical vendor
HSMC-05 Are the chemical dosages, dates, and locations documented? Comments: By Evoqua technician
HSMC-06 Does the utility document where odor is a problem in the system?
38
Comments:
HSMC-07 Does the utility have a program in place for renewing or
replacing severely corroded sewer lines to prevent collapse?
Comments: Rehab manholes mainly
Comments:
HSMC-08
Checklist Item
Yes No N/A
Are the following methods used for hydrogen sulfide control?
Aeration
Iron Salts
Enzymes
Activated charcoal canisters
Chlorine
Sodium hydroxide
Hydrogen peroxide
Potassium permanganate
Biofiltration
Other
Comments: Bioxide is a nitrate salt
HSMC-09 Does the system contain air relief valves at the high points of
the force main system?
Comments:
HSMC-10
How often are the valves maintained and inspected? (Weekly, Monthly, etc.)
Comments: Just when we identify an issue.
39
HSMC-11 Does the utility enforce pretreatment requirements?
Comments: Not enough staff
Comments:
Infrastructure Security Although outside the scope of a CMOM program, municipal wastewater utilities should also consider security vulnerabilities. To reduce the threat of both intentional and natural disasters, the utility should take steps to implement appropriate countermeasures and develop or update emergency response plans.
Please summarize any program the utility has for infrastructure security.
40
Comments: Our wastewater system has Scada in all Lift Stations and Wastewater treatment facility. Every Lift Station has all panels and gates locked with padlocks as well as the treatment facility. Our wastewater plant also has video surveillance 24-hrs a day. The South Central Wastewater Plant is checked daily including holidays to check for any unauthorize entry or unusual activity. Lift Stations are checked by operators on Mondays, Wednesdays, and Fridays to also check for unauthorized entry or unusual activity.
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Doa Ana County / South Central WWTP-CMOM Permit No: NM0030490 Inspection Date 11/19/2025
Appendix 2 Review of the ICIS
E90 Effluent Violations
NM0030490
DONA ANA COUNTY (SOUTH CENTRAL REGIONAL WWTP)
Monitoring Period End Date 06/30/2023 06/30/2023 07/31/2023 07/31/2023 08/31/2023 08/31/2023 09/30/2023 09/30/2023 10/31/2023 10/31/2023 11/30/2023 11/30/2023 12/31/2023 12/31/2023 01/31/2024 01/31/2024 02/29/2024 02/29/2024 03/31/2024 03/31/2024 07/31/2024
Parameter Desc Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] Oxygen, dissolved [DO] E. coli
Statistical Base Short Desc DAILY MN MO AV MN DAILY MN MO AV MN DAILY MN MO AV MN DAILY MN MO AV MN DAILY MN MO AV MN DAILY MN MO AV MN DAILY MN MO AV MN DAILY MN MO AV MN DAILY MN MO AV MN DAILY MN MO AV MN DAILY MX
Limit Unit Short Desc
Limit Value
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
mg/L 5.
CFU/100410.
DMR Value Qualifi er Code
DMR Value
=
3.4
=
3.78
=
3.5
=
3.6
=
2.7
=
3.2
=
2.7
=
2.96
=
2.1
=
3.01
=
2.05
=
2.92
=
2.48
=
2.74
=
2.16
=
2.45
=
1.94
=
2.38
=
2.95
=
4.12
=
560.
Reported Number of Excursions 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 1