CTR072297_Amendment_5_-_Adds_Key_Personnel.pdf

Rev. 03-05-2025

CONTRACT

AMENDMENT

CONTRACT NO.: CTR072297

AMENDMENT NO.: 5

TITLE: ASRAC Assessment and Remediation of Hazardous Substances CONTRACTOR: Clear Creek Associates, PLC

ADEQ PROCUREMENT

1110 W. Washington Street Phoenix, AZ 85007 602-771-4140

THE PURPOSE OF THIS AMENDMENT IS TO:

In accordance with the Special Terms and Conditions, 5.1 Amendments, this contract is hereby amended as follows:

1. Add the following Key Personnel:

• Jennifer Hill – Professional Level V

• Alex Nunez-Thompson – Professional Level II

• Lucas Dimas – Field Services Manager

2. All other Requirements, Specifications, Terms and Conditions remain unchanged.

THE ABOVE REFERENCED AMENDMENT IS A

UNILATERAL ACKNOWLEDGEMENT OF

CONTRACTOR’S APPROVED CHANGED

REQUEST.

ARIZONA DEPARTMENT OF ENVIRONMENTAL QUALITY

The above referenced Amendment is hereby executed this 14th day of October 2025 at Phoenix, Arizona.

Ana Machiche Procurement Officer

Available online at Arizona Procurement Portal (APP) eProcurement System https://app.az.gov https://app.az.gov/

Jennifer Hill, PE Senior Engineer

Daniel B. Stephens & Associates, Inc. dbstephens.com

Ms. Hill is a senior civil engineer, licensed in New Mexico, Arizona, California, and Colorado. She has more than 30 years of experience, primarily in water and wastewater systems, including water storage, pumping, pipelines, condition assessment and rehabilitation, master plan and fire flow studies, environmental permitting, water and wastewater facility design, sewer rehabilitation design, utility routing, monitoring and reporting, computer modeling, planning studies, public meetings, and task forces. Ms. Hill has extensive project management experience ranging from facility design to infrastructure planning, permitting, geographic information systems (GIS), and asset management applications. Her water system analysis/modeling experience for existing and new commercial developments includes water availability studies, source of supply, and effluent management studies. Her design experience includes preliminary engineering reports (PERs) for water and wastewater; water system replacement and rehabilitation, including pipelines, tanks, well, and disinfection improvements; and design of new water infrastructure. Her wastewater experience includes master planning and hydraulic modeling, sanitary sewer and lift station evaluation and design, and wastewater lagoon improvements.

Laguna Encinal Springs Water System Upgrade, Pueblo of Laguna, New Mexico Project Manager for inventory, assessment, recommendations, design, construction documents, and cost estimating for improvements to the spring collection system for the Village of Encinal at Laguna Pueblo. This project is being performed under funding from the Indian Health Service (IHS).

Laguna Lift Station Assessments and Design, Pueblo of Laguna, New Mexico Project Manager for assessment of four existing lift stations and design of needed improvements. The lift stations are located in the Paraje, Laguna, and New Laguna areas. This project is being performed under funding from IHS.

Village of Jemez Springs, Wastewater System Improvements, Jemez Springs, New Mexico Technical Lead for this project to design improvements to the Village of Jemez Springs wastewater system, including sewer cleaning and CCTV inspection, sewer and manhole rehabilitation, sewer re-routing, and wastewater treatment plant (WWTP) improvements. The existing WWTP is a Sequencing Batch Reactor. The improvements to be designed include headworks screening, new office/laboratory building, improvements to the ferric chloride building, and addition of sludge drying beds.

City of Raton Water Storage Tank Rehabilitation Project, Raton, New Mexico Senior Engineer for project to rehabilitate the existing 3-million-gallon finished water storage tank for the City of Raton. This project included plans, specification, Engineer’s Opinion of Probable Cost, and bid phase services.

EDUCATION

BS, Civil Engineering, Florida International University, 1992

PROFESSIONAL

REGISTRATIONS

Professional Engineer, New Mexico, No. 19055

Professional Engineer, Arizona, No. 32570

Professional Engineer, Colorado, No. 46810

Professional Engineer, California, No. C 94695

Asset Management Certification, Buried Asset Management Institute

Water Sample Tech 2 #18709

PROFESSIONAL AFFILIATIONS

American Water Works Association, former Chair of New Mexico Involvement Committee (Rocky Mountain Section)

Water for People, Section Volunteer, 1997-2016

City of Raton Conservation Plan Update, Raton, New Mexico Senior Engineer for project to update the City of Raton’s conservation plan in conformance with the New Mexico Office of the State Engineer’s guidance.

Integrated Solid Waste Management Plan, Zia Pueblo, New Mexico Project Engineer for the development of an integrated solid waste management plan for the Pueblo of Zia under funding from the Indian Health Service. Develop planning area profile, define waste generators with the planning area, identify existing waste management practices, conduct a waste assessment/waste audit, estimate future waste generation, develop waste handling options, identify regional programs and infrastructure, develop costs, and present findings to tribal council in relationship to existing solid waste procedures.

Tuba City Dump Clean Closure, Tuba City, Arizona Project Engineer for design and construction of clean closure of this open dump. DBS&A has worked with the Hopi Tribe for more than 15 years to address a groundwater contaminant plume containing uranium and other contaminants at this site. We are now working with the Tribe and the Bureau of Indian Affairs (BIA) to commence construction on the clean closure of the dump. Tasks have included preparing bid documents, evaluating engineering alternatives for final closure and remediation, preparing construction cost estimates for funding requests to the responsible federal agencies who operated the landfill, supervising the design and installation of monitor wells and performing groundwater sampling, preparing Rapid Site Characterization and Monitor Well Installation reports, providing technical support during ongoing Remedial Investigation/Feasibility Study, and calculating volume of impacted groundwater for Hopi’s Natural Resource Damages claim.

Pilot Study for Arsenic Removal Treatment, Pueblo of Zia, New Mexico Project Engineer for pilot study of treatment systems to remove arsenic from three wells serving Zia Pueblo. This study is evaluating four technologies: coagulation-filtration, iron sorption, ion exchange, and membrane nanofiltration and up to four of these will be pilot tested. Water quality sampling has been completed on this project, and DBS&A is currently evaluating technologies to potentially select two for pilot testing.

SRP Mesquite Well 6, Arlington, Arizona Project engineer for design of well equipping for a new 2,000 gallons per minute well for additional supply to SRP’s Mesquite Generating Station. The project included well pump selection, site development, and approximately one half-mile of 12-inch transmission main.

City of Las Cruces Water System Design Projects, Las Cruces Utilities, Las Cruces, New Mexico Under our on-call contract for utility engineering services, we have designed three major water system improvements. The Well 64 project design included pump selection, gas chlorination, and approximately one mile of 16-inch transmission main connecting to an existing tank site. The design includes selection of a 200 HP submersible pump, blow off pond, disinfection system, and SCADA integration. The East Mesa Water Reclamation Booster Pump Station project designed a booster station to pump treated effluent from the East Mesa Water Reclamation Facility to a proposed Sportsplex. DBS&A prepared a design memorandum comparing options for the booster station including comparing the installation of a new booster pump station (BPS) in a new enclosure to replacing pumps in the existing enclosure with additional pumps to meet two different hydraulic conditions. The evaluation included analysis of reported suction side limitation at the existing pumps and suitability of the pumps to meet the actual conditions. The design will include tank connection, site piping, booster pumps, SCADA integration, and booster station enclosure. The Spruce Tank Booster Pump Station project included preparation of a Basis of Design Report including water model analysis and establishing design criteria. The design included a 3,000-gallon-per-minute (gpm) BPS to allow transfer of water from lower zones where water supply is plentiful to upper zones where there is less water supply, site piping, booster station enclosure, skid-mounted pumps, pressure reducing valve station, instrumentation and control, and SCADA integration.

Lead and Copper Rule Revisions Compliance Support, City of Las Cruces Utilities, New Mexico Project Manager to assist the City with various tasks associated with revisions to the federal Lead and Copper Rule including preparation of the initial water service line inventory for the five water systems operated by the system, Lead Service Line Replacement Plan, and web map for customer input on service line materials.

Consumer Confidence Reports, City of Las Cruces Utilities, New Mexico Project Manager for preparation of the 2024 Consumer Confidence Reports for all five water systems operated by the City. This included quality checking of water quality data, and preparation of draft and final reports for the City’s distribution.

Anton Chico Rest Areas, Water and Wastewater Improvements, Santa Rosa, New Mexico Project Manager for design of improvements to water and wastewater systems for two rest areas, owned and operated by New Mexico Department of Transportation. This project included design of a new treatment system to remove nitrate, consisting of a regenerable resin ion exchange system.

Low Cost Nutrient Removal Training for Wastewater Operators, New Mexico Environment Department Surface Water Quality Bureau, Various Locations, New Mexico Training for this multi-year contract to provide classroom instruction on low cost techniques for improving nutrient removal in wastewater treatment plants. Under this state sponsored program, utilities were eligible for a technical assistance site visit after attending the training. Site visits with follow-up reports were completed for the Village of Jemez Springs, City of Gallup, and Village of Cimarron.

Intertribal Council of Arizona, Tribal Wastewater Trainings and Job Task Analysis Project Manager to prepare training materials for a 40-hour tribal wastewater lagoon operator training and conduct trainings at tribal facilities. DBS&A participated in Job Task Analysis for a wastewater lagoon operator.

The Intertribal Council of Arizona (ITCA) is a private, non-profit corporation promoting Indian self-reliance through public policy development. ITCA provides on-going technical assistance to tribal governments in program planning and development, organizes workshops seminars and conferences, and support utility operators by providing training and certifying operators. DBS&A worked with psychometricians, utility managers, and ITCA staff on the Job Task Analysis to identify relevant knowledge, skills, abilities and judgements for a specific position. These items will be used to develop curriculum and eventually a certification exam.

Bureau of Indian Affairs, Keams Canyon Water Systems Improvements Project, Hopi Reservation, Arizona Project Manager for this project to evaluate three existing water systems owned and operated by the Bureau of Indian Affairs at Hopi: Keams Canyon, the Hopi Junior Senior High School and Second Mesa Day School. The initial evaluation included an identification of deficiencies and recommended remedies, asset condition assessment and asset management plans, a Proration Report to assign a value to the assets, and recommendations for connecting the systems to the regional water system.

DBS&A designed water system improvements including approximately 5 miles of new pipe connecting BIA water systems to the regional water system and replacement of 8 miles of existing asbestos cement pipe. The Keams Canyon water system was reconfigured by adding a new tank and booster station to split the pumping head.

The maximum operating pressure were reduced from over 300 psi to 150 psi. DBS&A provide full time construction observation, startup and testing support and construction walkthroughs.

Second Mesa Day School Operator Support Services Since 2020, DBS&A has provided operator support to the Second Mesa Day School water system, which includes an arsenic removal system that uses two vessels containing a zirconium-based adsorbent media manufactured by Isolux. The media requires an influent target pH of around 7 for effective arsenic removal. Carbon dioxide gas is injected to lower the pH of the raw water, which is approximately 9.7. The pH and free chlorine of the water are continuously monitored by an analyzer wired to sensors in a side-stream. DBS&A provides monthly visits by a certified water operator who takes process control samples, verifies the system is working properly, assists with regulatory compliance sampling and reporting to the U.S. Environmental Protection Agency, and provides support and training to the on-site facility maintenance personnel.

Cottonwood Campground Water Treatment Design, New Mexico Energy Minerals and Natural Resources Department, Navajo Lake, New Mexico Technical lead on design of improvements to the existing drinking water treatment system. The campground is supplied by surface water from the San Juan River which is collected in an infiltration gallery and conveyed to a wet well from where it is pumped through a membrane treatment system to a water storage tank. DBS&A evaluated an existing groundwater well which was historically used for water supply and recommended returning that well to service as a redundant water source. The design includes well equipping, a new infiltration gallery, deepening the wet well, replacing wet well pumps, design of a new treatment building with membrane filtration and replacement of water piping.

Pine Campground Lift Station Renovation, New Mexico Energy Minerals and Natural Resources Department, Navajo Lake, New Mexico Technical lead on this project to evaluate two existing sewage lift stations, one of which had settled over time and one of which had heaved. The evaluation concluded that the fiberglass wet wells had failed. DBS&A is designing replacement lift stations, grading and drainage to divert water away from the lift station cover for one installation, and replacement and rehabilitation of a sewer line which is experiencing surcharging manholes.

Composting Toilet Feasibility Study, New Mexico Energy Minerals and Natural Resources Department, New Mexico Project Manager for this project to evaluate the feasibility of replacing vault toilets with composting toilets at New Mexico State Parks. DBS&A developed design criteria, compared pre-manufactured products, and made recommendations. We compared site built to pre-manufactured installations, and provided draft specifications and drawings for site built and pre-manufactured installations. We are working with State Parks to identify locations for pilot installations.

Septic System Evaluation and Rehabilitation at Three State Parks, New Mexico Energy Minerals and Natural Resources Department, New Mexico Technical lead for this project to evaluate existing on-site wastewater disposal at three State Parks: Villanueva, Bottomless Lakes and City of Rocks. DBS&A evaluated the condition and capacity of septic/leach field systems and designed improvements to correct deficiencies.

Wastewater Evaluation and Design, New Mexico Energy Minerals and Natural Resources Department;

Pancho Villa State Park, New Mexico Project Manager for this project to evaluate wastewater, water, and electric systems at Pancho Village State Park and recommend alternatives for wastewater service. The Park is currently served by six independent septic tank systems. DBS&A evaluated the feasibility of, and recommended, a centralized sewer collection system and lift station to convey wastewater to the Village of Columbus wastewater collection system. We are designing a gravity sewer, lift station, and force main for the recommended project.

Moenkopi Water Supply Project, The Hopi Tribe, Hopi Reservation, Arizona Project Manager for this project to connect two existing supply wells (drilled under contract with DBS&A) to the Moenkopi water system. The project includes 22 miles of transmission piping, well buildings, disinfection, and a 150,000-gallon water storage tank. This project is on a short timeline due to ARPA funding and will be designed in 8 months. Area wide LiDAR was flown for this project to collect topographic data and aerial imagery.

Deep Well Drilling, Equipping and Site Design; Pine-Strawberry Water Improvement District, Pine, Arizona Project Manager for this project to drill a deep (2,000 ft) supply well in the Strawberry area for the District. The project includes well drilling, construction, development and testing, well pump selection and site design including booster station building, tank, disinfection and site piping.

Water Audit, City of Willcox, Arizona, and the North American Development Bank, Cochise County, Arizona Project Manager to prepare water audit for this small community in southern Arizona. Work includes preparation of the water audit using the American Water Works Association (AWWA) methodology and software, review of water billing data, meter accuracy testing, water and wastewater rate studies, meter sizing analysis, line break analysis, and energy consumption review. Four reports will be prepared including a water audit report summarizing findings and providing recommendations, a rate study report, standard operating procedure (SOP) for preparing water audits, and a capital improvements plan.

Jones Ranch, Water and Wastewater System Evaluations, Ventura County, California Project Engineer conducting an evaluation of alternatives for potable water supply and wastewater service for a proposed 300-unit farmworker housing development. The water system evaluation included an assessment of the adjacent water system serving a high school and the condition of facilities, and required improvements to upgrade the existing water system to serve the proposed adjacent development. The wastewater evaluation included a sewer evaluation to determine the feasibility of gravity sewers versus force main versus low pressure grinder pumps and a recommendation for treatment plan technology and effluent disposal.

Anza Dollar General, Water System Design, Anza, California Project Engineer to prepare construction documents for a water system connection of the proposed Dollar General Store to the adjacent community center water system design. The design included site piping plan, well building, and wellhead improvements. The work included coordination with the County and the fire protection system designer.

Crestview Mutual Water Company, Water and Wastewater Evaluations, Camarillo, California Project Engineer to conduct an evaluation of alternative well sites. The evaluation included a cost comparison of pipeline alignments and associated costs, and a sewer evaluation to determinate whether lots within a 500-foot radius of the proposed well could be connected to the sewer.

Deep Water Supply Well, Pine-Strawberry Water Improvement District, Pine, Arizona Project Manager for on-call contract to construct U.S. Department of Agriculture (USDA)- funded water projects developed in a Preliminary Engineering Report (PER) by others. This project will drill, construct, and equip a 2,000-foot-deep well in the Strawberry area.

Weapons Engineering Tritium Facility, Radiological Liquid Waste Tank Replacement Project, SET Inc., Los Alamos National Laboratory, New Mexico DBS&A Project Manager as the engineering partner on this Design-Build project to design and construct a replacement tank within a concrete vault at Los Alamos National Laboratory. The project includes demolition of tank, and piping, waterproofing the vault structure, installation of a new double walled tank with lead detection, and instrumentation and control.

Water System Improvements, Lower Rio Grande Public Water Works Authority, Las Cruces, New Mexico Project Manager for the East Mesa Water System improvements project, to design improvements included in a previous PER (by others). The design included two construction packages: one for drilling of a replacement well, and the other for equipping the well, constructing well house with chlorine disinfection, a new tank, demolition of three existing tanks, rehabilitation of five tanks, distribution system improvements, and relocation of supervisory control and data acquisition (SCADA) master control to a more centralized location.

Water Audits, North American Development Bank, Cities of Lyford and Carrizo Springs, Texas Technical reviewer for comprehensive water audits for two separate projects funded by the North American Development Bank (NADBank). The water audits included rate studies for water and sewer utilities as well as conservation plans. The goal of the water audits was to improve the Cities’ operational and financial sustainability by estimating revenue versus non-revenue water and to distinguish real and apparent losses using the water accounting technique based on the American Water Works Association (AWWA) water balance model. The goal of the rate studies was to evaluate the ability of the current water and sewer rate structures to meet operating expenses for each department, and develop proposed rates for the future. Coordinated all communication, data collection and interpretation, and training events for City staff and NADBank partners.

Engineering Feasibility Report, City of Carrizo Springs, Texas Technical Lead for completion of an Engineering Feasibility Report (EFR), Preliminary Engineering Report (PER), and Environmental Information Document (EID) for water system improvements for the City of Carrizo Springs.

Both PER and EFR documents were prepared to obtain funding from the TWDB and the U.S. Department of Agriculture (USDA) Rural Development Program. The recommended project included a total water system replacement, including all of the City water mains, service lines, and booster pumps. The planning documents also included recommendations for improving water system hydraulics, adding tank capacity and fire protection, installing emergency power supply, and making improvements to disinfection equipment. The basis was a water audit completed by DBS&A. Work was completed in consultation with the North American Development Bank (NADBank), who was the funding source for the planning documents.

Preliminary Engineering Report to Address Disinfection Byproducts Formation, French Mutual Domestic Water Consumers Association, Springer, New Mexico Project Manager for Preliminary Engineering Report (PER) for this small water system that receives treated surface water as a sequential system to the Town of Springer. DBS&A took water quality samples, conducted a water model analysis in Infowater software to examine water age, and prepared a PER to compare alternatives to reduced DBP formation. Alternatives included changing disinfection method, tank aeration, addition of ammonia, and operational changes to reduce water age.

Replacement Water Tank, Ohkay Owingeh, New Mexico Project Manager for the design of and construction services for a new 250,000-gallon tank. The project was designed and constructed in three months in order to meet funding deadlines. Services included geotechnical investigation, design survey, design including preparation of contract document, construction observation, and submittal review.

Fire Storage Tank, Lea County, Maljamar, New Mexico Project Manager under contract with Lea County, to design a 30,000-gallon water storage tank to provide additional water for fire protection to customers of the Mescalero Ridge Water Cooperative. The tank was built adjacent to an existing tank. Atkins Engineering provided design survey, utility potholing, geotechnical engineering report, and drone flyover for aerial imagery for this project.

Pajarito Rest Areas Water and Wastewater Improvements, New Mexico Department of Transportation, Torrance County, New Mexico Project Manager for the evaluation of an existing water and wastewater systems at two rest areas along I-40.

The design includes expanded septic system/leach field systems, effluent pumps, and improvements to water disinfection systems and automated alarms. The evaluation included percolation testing at the sites, laboratory analysis of soils, and permitting through New Mexico Environment Department (NMED) Liquid Waste Bureau.

District Five Rest Areas Certified Operator Services, New Mexico Department of Transportation, Various Locations, New Mexico Project Manager for services to provide certified water operator of record to District Five rest areas:

Bicentennial (La Bajada) Rattlesnake, (Moriarty), and Rio Grande Gorge Rest Areas. Services included monthly sampling, coordination with New Mexico Environment Department (NMED) Drinking Water Bureau (DWB), and system troubleshooting and regular inspections. Under this contract, DBS&A assisted the New Mexico Department of Transportation (NMDOT) with compliance issues related to Administrative Orders from U.S.

Environmental Protection Agency (EPA), including successfully troubleshooting and putting back into service an existing nitrate treatment system.

Torrance County Correctional Facility, Wastewater Treatment Plan Monitoring and Reporting, Torrance County, New Mexico Project Manager for this project under which DBS&A provides monthly monitoring and quarterly reported under the Discharge Permit for this wastewater treatment facility. Monitoring includes effluent sampling, groundwater sampling and facility inspections. Reports summarizing flows, operational considerations, calculations of nitrate applied to the land application site, and analytical results, are submitted to the NMED Groundwater Quality Bureau.

AWWA Water Audit, City of Willcox Arizona and the North American Development Bank, Cochise County, Arizona Project Manager to prepare water audit for this small community in southern Arizona. Work includes preparation of the water audit using the American Water Works Association (AWWA) methodology and software, review of water billing data, meter accuracy testing, water and wastewater rate studies, meter sizing analysis, line break analysis, and energy consumption review. Four reports will be prepared including a water audit report summarizing findings and providing recommendations, a rate study report, Standard Operating Procedure for preparing water audits, and a capital improvements plan.

Quill Wastewater Treatment Plant Sampling Services, Santa Fe County, New Mexico Project Engineer for this project under which DBS&A conducts quarterly and annual monitoring and contingency sampling at the Quill Wastewater Treatment Plan to include quarterly influent samples, quarterly effluent samples, and quarterly monitor wells (four wells). Laboratory analysis results were previously provided to Santa

Fe County for reporting, but recently DBS&A added reporting services and prepared quarterly reports for 2024 and submitted them to the New Mexico Environment Department (NMED) Groundwater Quality Bureau.

Acoma Business Enterprises Wastewater Treatment Plant Improvements, Acoma Sky City Casino, New Mexico Technical Lead for this project to design improvements to the existing wastewater treatment facility and provide engineering service during construction. The improvements that were designed include a new headworks building with auger screen, a new equalization basin, replacement of equipment in the existing Sequencing Batch Reactions, addition of dissolved oxygen sensors, and automation of aeration and tertiary filtration.

Acoma Business Enterprises Water and Wastewater Evaluation, Pueblo of Acoma, New Mexico Project Manager for evaluation of the existing water and wastewater systems serving the Acoma Business Enterprises casino facilities. The study included evaluation of blending to minimize treatment at the existing reverse osmosis facility, measures to improve incoming water quality including replacing polyethylene storage tanks, which raise water temperature and allow algae growth before treatment, and addition of filters to the water treatment process. For the wastewater facility, DBS&A examined options for new headworks facilities to automate cleaning and provide odor control, and options for solids disposal. This study including budgetary costs for improvements including SCADA master control and rebuilding of control panels for treatment units.

Design Analysis Report for MS4 Outfalls, City of Rio Rancho, New Mexico DBS&A, with our subconsultant Huitt Zollars Inc, evaluated options for floatables control at eight outfalls to the Rio Grande within the City of Rio Rancho’s MS4 and prepared construction documents for the recommended Best Management Practices (BMPs). There are eight Rio Rancho MS4 outfalls to the Rio Grande. The DAR recommended improvements on the storm drains upstream of the outfalls at five of the eight locations, because of a lack of accessibility for maintenance to the river outfalls. The recommendations and subsequent design included improvements such as installing screens on the pipe inlets at drop inlets within the and the installation of stormwater quality manholes over existing storm drain pipes, which include sumps for sediment control and screens on the outfall piping for gross pollutants. For three of the outfalls, structural BMPs were designed including baffle walls and concrete boxes for retaining gross pollutants and in one case a coanda screen. These structures are designed for vehicular access for maintenance. This project included coordination with the U.S.

Army Corps of Engineers for 404 permitting requirements.

Hopi Arsenic Mitigation Project Regional Water System, Hopi Utilities Corporation, Hopi, Arizona Project Manager for the evaluation and design of the Hopi Arsenic Mitigation Project (HAMP) regional water system to serve First and Second Mesa communities on the Hopi reservation. The evaluation included hydraulic modeling of the proposed water system, which will be supplied from two wells located several miles west of the existing systems, review and comment on the Indian Health Service (IHS) design report, and development of planning level capital and operating and maintenance (O&M) costs. The design includes 40 miles of waterline, 3 new water storage tanks, 2 booster stations, and equipping of 2 wells. DBS&A provided full time on-site observation and this project was completed in November of 2022.

Bureau of Indian Affairs Hopi Agency Water Systems Assessment and Design, Hopi, Arizona Project Manager for the evaluation of the Bureau of Indian Affairs water systems on the Hopi Reservation including asset inventory, asset management plan, and evaluation of upgrades needed to connect these stand-alone systems to a planned regional water system. Includes design of a new transmission main and improvements to correct existing system deficiencies.

Hopi Strategic Water Asset Management Plans, Hopi, Arizona Project Manager for a Bureau of Reclamation grant-funded project to prepare asset management plans for five public water systems at Hopi: Polacca, Lower Sipaulovi, Upper Mishongovi, Shungopavi, and Bacavi. We created an inventory of water infrastructure, input the inventory to the U.S. Environmental Protection Agency’s (EPA) free asset management software, prepared hydraulic water models of each system and modeled the existing water system and future water systems with anticipated growth, provided recommendations for future improvements, and created cost estimates for replacement of infrastructure plus capital improvement. Asset management reports were prepared that described the water systems, provided a map of the water system, assessed condition of the assets, described deficiencies, and recommended improvements with planning level cost estimates.

404 Mitigation Project Design, American Gypsum, Bernalillo, New Mexico Project Manager for this project to evaluate options and design a project comprising mitigation for disturbance at an existing mine site. The mitigation project was designed as river restoration on a segment of river on Zia Pueblo property. This project involved coordination and approval by the U.S. Amy Corps of Engineers and Zia Pueblo Environmental Program office.

Torrance County Correctional Facility Certified Operator, Sampling, and Analysis Services, CoreCivic, Estancia, New Mexico Project Manager providing certified operator, sampling, and analysis services for the Torrance County Correctional Facility. The wastewater treatment facility consists of a 33-acre (50 million gallon) synthetically lined impoundment that has a capacity of 150,000 gallons per day. Wastewater from the lined impoundment is discharged as needed to a 45.4-acre surface disposal area adjacent to the impoundment. The system includes a grease separator and lift station. DBS&A provides monthly and quarterly sampling and quarterly monitoring reports. Sampling is done of both the wastewater and of surrounding monitoring wells. Monitoring includes effluent sampling, groundwater sampling and facility inspections. Reports summarizing flows, operational considerations, calculations of nitrate applied to the land application site, and analytical results, are submitted to the NMED Groundwater Quality Bureau. Services are provided in order to comply with Discharge Permit 690.

Stagnant Water Study, City of Las Cruces Utilities, New Mexico Project Manager for this project to recommend operational changes to reduce the incidence of red water/stagnant water in the public water system due to iron and manganese. This project included water quality sampling at wells and tanks, water age modeling, evaluation of dosing practices and research on other communities and industry recommendations. Findings and recommendations were summarized in a report.

Water Model Update, City of Las Cruces Utilities, New Mexico Project Manager for this project to update the City’s hydraulic water model in Infowater from GIS data. Over 150 miles of pipe were added, demands were updated from billing data geocoded by DBS&A, and new scenarios were developed. Fire flow testing throughout the system was conducted and used to validate the model.

Training was provided to City staff on the model update process on running various scenarios including water quality modeling.

Tyrone Potable Waterline Replacement Project, Freeport Mc-Moran Inc., Silver City, New Mexico Project Manager for this project to design potable waterline replacements for portions of the public water system at the Tyrone mine. The project includes replacement of approximately 2,600 feet of 3-inch, 5,000 feet of 8-inch and 1,000 feet of 6-inch HDPE pipe connecting water storage to end users at the mine site.

Deliverables included construction drawings, technical specifications, Disinfection Plan and Design Summary Report. Services include construction observation and record drawings.

Aguila Well Site Development, Freeport McMoran Inc., Bagdad, Arizona Project Engineer for feasibility study for wellfield expansion. Engineering tasks include preliminary well site layout, analysis of pumping requirements and recommendation for equipment, cost estimating, and narrative description of equipment, piping, pumping and instrumentation and control.

Large Scale Recharge Project Well Drilling, Albuquerque Bernalillo County Water Utility Authority, Albuquerque, New Mexico Project Manager for the bid and construction phase of well drilling for the San Juan Chama Drinking Water Treatment Plant large scale recharge facility. Two wells were drilled for recharge of treated surface water—one deep well for direct injection, and one shallow vadose zone well. We will provide monitoring and reporting for the demonstration phase, once well equipping, pipeline connections, and system controls are installed.

Water System Improvements, Village of Causey, New Mexico Project Manager for an on-call contract for water system improvements, to be funded through a Special Appropriation from the New Mexico Legislature. DBS&A reviewed information and met with regulators regarding conversion of an agricultural well. This was found to be impractical, at which time DBS&A oversaw proper disinfection of an inactive well and was able to provide sufficient information to NMED for activation, providing the Village with the additional source of supply. DBS&A also prepared plans and specifications and conducted post-construction inspections for well house improvements for both wells, including new door, roofing, insulation, electrical upgrades including quick connect for generators, and replacement of customer meters.

Eagle Picher Carefree Batteries Superfund Site, New Mexico Environment Department, Socorro, New Mexico Technical team leader for this pump and treat groundwater remediation system to include extraction and injection wells, water storage, piping, treatment, and instrumentation and controls. The project deliverables include construction drawings and technical specifications and a number of site-specific plans required under the Record of Decision from U.S. Environmental Protection Agency (EPA) for this site, including Construction Quality Assurance Plan and Operating and Maintenance Manual.

Arsenic Treatment Project Approval; American Gypsum Company, Bernalillo, New Mexico Project Manager for this project to obtain project approval of arsenic treatment installed years before at the Bernalillo manufacturing facility. This project included water quality sampling to verify efficacy of treatment, research on pilot studies for the adsorption technology, preparation of a technical memorandum and application package and coordination and communication with the New Mexico Environment Department.

404 Permit Mitigation Measures Study, American Gypsum Company, Bernalillo, New Mexico DBS&A and Riverbend Engineering, LLC developed conceptual-level compensatory mitigation measures for areas in and along the Jemez River for the American Gypsum Company. The measures were developed to support U.S.

Army Corps of Engineers 404 permitting associated with the expansion of the White Mesa Gypsum Mine near San Ysidro, New Mexico. Three possible mitigation measures were identified, including constructing a depressional wetland, realigning the river channel north of a diversion, and performing grade control and channel realignment south of the diversion. Project tasks included meeting with the U.S. Army Corps of Engineers, U.S. Bureau of Reclamation, and Zia Pueblo to discuss the potential mitigation measures and 404 permitting.

Water System Preliminary Engineering Report, City of Deming, New Mexico Project Manager for preparation of a Preliminary Engineering Report (PER) to compare alternatives for water system improvements to both correct existing system deficiencies and expand the system to meet future demands. The PER was prepared in accordance with the U.S. Department of Agriculture (USDA) RD Bulletin 1780-2. This project is funded through the state Water Trust Board and subject to State agency review. The water system was evaluated using a computerized water model in WaterGEMS software. The analysis included development of alternatives to meet existing and future conditions, and comparison of alternatives based on criteria including capital and operating and maintenance costs, and environmental impacts. An accompanying Environmental Information Document was prepared, providing a high-level review of potential “show-stopping” issues that could be identified as areas of avoidance or areas of more focused evaluations that would be necessary at later stages of project development. The PER represents an overall system evaluation and capital improvements plan for the 20-year planning period.

St. Michaels’ School Water Quality and Treatment Evaluation, DigDeep, Window Rock, Arizona Project Manager for this project to evaluate water quality at a special needs boarding school in Window Rock, Arizona, for lead contamination and aesthetic issues related to Total Dissolved Solids and sulfate. A technical memorandum summarizing the results of water quality analysis was prepared evaluating several alternatives, including plumbing replacement, centralized treatment, and point of use treatment. Technical review of memorandum and preliminary planning costs for evaluating alternatives to make a recommendation.

Alternatives examined were centralized reverse osmosis (RO) treatment, point of use RO treatment, plumbing replacement, and chemical corrosion control. The final recommendation was for point of use treatment at selected buildings on the school property.

Capacity Development Assistance Engineering Services Contract, New Mexico Environment Department, Various Locations, New Mexico Project Manager for providing capacity development assistance to public water systems in the State of New Mexico on behalf of the New Mexico Environment Department’s (NMED) Drinking Water Bureau. Under this contract, DBS&A has prepared 18 source water protection plans, identifying potential sources of contamination within the defined source water protection area, and provided training to water system operators on topics including Revised Total Coliform Rule and Distribution System Sampling Plan Preparation.

Station 70 Record Drawings, Albuquerque Bernalillo County Water Utility Authority, Albuquerque, New Mexico Project Manager to update record drawings for the Station 70 ferric chloride facility. The facility receives and distributes ferric chloride to trucks and to the San Juan Chama Drinking Water Plant. The project includes subconsultant work to survey and pothole underground utilities. This information will be used to update the base mapping of the facility so that accurate record drawings can be used as the basis for future improvements at the site.

Stormwater Improvements for Los Alamos National Laboratory Legacy Solid Waste Management Units, Tsay Corporation, Los Alamos, New Mexico Project engineer on design/build project to design and construct stormwater improvements to divert “clean” runoff around a legacy Solid Waste Management Unit. Improvements include above-ground high-density polyethylene (HDPE) stormwater piping, concrete inlet and outfall structures, culvert crossing of roadway, and detention pond improvements. Design challenges include steep slopes; rocky terrain; HDPE pipe thermal contraction and expansion, and access constraints. This project includes compliance with Los Alamos National Laboratory (LANL) environmental and safety requirements.

Certified Water Operator Services, New Mexico Department of Transportation, Moriarty, Santa Fe, and Taos, New Mexico Project Manager supporting the New Mexico Department of Transportation (NMDOT) in services related to operation, compliance sampling, water system assessment, water system operation and corrective action planning for three rest areas within NMDOT’s District 5. Our services include coordination and communication with the U.S. Environmental Protection Agency (EPA) and the New Mexico Environment Department (NMED).

NMDOT was under Administrative Order from EPA on two of the three rest areas, for which we prepared a progress report for deficiencies.

We provide the New Mexico certified Operator-of-Record for the three rest areas. In this capacity, we conduct monthly regulatory sampling for total coliform and inspect water facilities. We provide a monthly inspection report to NMDOT, which identifies any deficiencies requiring attention by the Owner.

Chromium Pipeline and Infrastructure Project, Los Alamos National Laboratories, Los Alamos County, New Mexico Project Manager on design/build project to design and construct a water system to connect extraction wells to treatment and distribute water to injection wells. This project includes approximately 10,000 linear feet of double and single-walled HDPE piping, package booster station wellhead vaults, instrumentation and controls, and supervisory and data control and acquisition system.

Wastewater Effluent Reuse System Phase 1B, City of Clovis, New Mexico Project Manager for construction services related to the City of Clovis’s reuse system. DBS&A (subconsultant) provided planning, permitting, and design services for a tertiary (“fuzzy”) filter and low lift pump station that are part of the City’s wastewater effluent reuse system. The system provides irrigation water to a landfill, parks, and fields within the City of Clovis.

Water System Preliminary Engineering Report, City of Portales, New Mexico Project Engineer for preliminary engineering report (PER) discussing water supply options for the 20-year period.

As part of the project, DBS&A developed standardized well specifications and schematic well design, which can be used to drill test holes and develop additional supply wells. The PER examined a number of alternatives, including rehabilitation of existing wells, drilling new wells, aquifer storage and recovery using injections wells, and increased conservation. The recommended alternative combines these options to create a diversified water portfolio focused on reducing demand, beneficially reusing and storing excess water during cooler months, and recharging the existing well field to prolong its life. The PER will be used to seek funding for recommended improvements from the state and federal funding sources.

Advanced Water Treatment Facility for Direct Injection, City of Rio Rancho, New Mexico Project engineer to design advanced water treatment for treated wastewater effluent. Treated water from the AWTF will be injected to a deep injection well located at the site. The design includes an advanced oxidation process to treat 1.0 million gallons per day (MGD) of tertiary-treated effluent from the Cabezon Membrane Bioreactor (MBR) Water Reclamation Facility. The facility improvements include a 60-foot by 100-foot concrete masonry unit (CMU) building with a truss and metal roof, two granular activated carbon vessels (BAC/GAC) of 12 foot-diameter, two advanced oxygen process skids using ozone and hydrogen peroxide as oxidants, process and transfer pumps, plumbing and piping, canister filtration and degassing systems, on-site sodium hypochlorite generator, and raw and finished water storage.

American Water Works Association Water Audit, Conservation Plan and Rate Study, Camino Real Regional Water Utility Authority and Border Environment Cooperation Commission, Sunland Park, New Mexico Project Manager to prepare water audits for this regional water utility serving Sunland Park, Doña Ana County, and the Santa Teresa border crossing. Work included analysis of water billing and production data to estimate non-revenue water and real losses, meter testing and inspections and meter sizing analysis. The conservation plan included an evaluation of baseline consumption, identification of conservation goals, determination of most beneficial conservation measurements, and setting goals and evaluation criteria for selected conservation measures. The rate study evaluated revenue to meet operating expenses, based on the most recent budget for the utility. Rates were compared to similar utilities in the region. Recommended water and sewer rates were developed for all customer categories, based on fixed and variable costs and assumed growth. A report summarizing findings of the audit, conservation plan and rate study was prepared and presented to the CRRUA Board.

American Water Works Association Water Audit, Marathon Water and Sewer Service Corporation and Border Environment Cooperation Commission, Marathon, Texas Project Manager for water audits for small groundwater system in West Texas. Work included comparison of audit results to previous audits submitted to Texas Water Development Board (TWDB), review of water billing and production data to estimate non-revenue water and real losses, meter sizing analysis, line break analysis, meter calibrations, and inspections. A water audit report summarizing findings was prepared. The audit was entered into the TWDB web-based database.

American Water Works Association Water Audit; Lower Rio Grande Public Water Works Authority and Border Environment Cooperation Commission, Doña Ana County, New Mexico Project Manager to prepare water audits for eight individual water systems, organized under a regionalized water authority. Work includes review of water billing and production data to estimate non-revenue water and real losses, meter sizing analysis, line break analysis, energy consumption review, meter calibrations, and inspections. A water audit report summarizing findings and providing recommendation and a prioritized list of improvements with planning level costs.

Region O Water Plan, Llano Estacado Regional Water Planning Group and the High Plains Underground Water Conservation District, Texas Responsible for preparing portions of the 2016 Regional Water Plan for Region O under guidance from the Texas Water Development Board. Tasks include developing cost estimates for multiple water management strategies using the TWDB Unified Costing Model, analysis and quantification of potential for water conservation and supply augmentation by a number of strategies, including new infrastructure, aquifer recharge, and desalination of groundwater from deep wells, associated data gathering, critical review, and data processing.

Joint Environmental Impact Statement/Bureau of Land Management Resources Management Plan, Environmental Management and…