CTR072297_Amendment_4_-_Adds_Key_Personnel.pdf

Form approved by CPO, Rev. 12-18-2018

CONTRACT

AMENDMENT

CONTRACT NO.: CTR072297

AMENDMENT NO.: 4

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:

• Stacie Alter – Professional Level V

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 21st day of January 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/

Stacie Alter, RG Senior Hydrogeologist clearcreekassociates.com

Ms. Alter’s 30‐year career includes both environmental consulting and municipal drinking water treatment. Throughout her carrer, she has managed environmental remediation and environmental permitting projects, and overseen water resource planning and regulatory compliance of small drinking water systems. Areas of specialization include aquifer protection permitting, grant writing and funding assistance for small water systems, and compliance with EPA’s Lead and Copper Rule Revisions and PFAS regulations.

MUNICIPAL DRINKING WATER TREATMENT

Lead and Copper Rule Revisions (LCRR), Town of Purcellville Water Treatment Plant, Viriginia* Led tasks associated with LCRR compliance, including the completion of a water service line inventory of over 3,000 connections. Developed and distributed customer service line surveys and coordinated survey responses.

Reviewed historic documents, oversaw meter inspections, and coordinated a statistical analysis to complete the inventory. Leveraged available free technical assistance and funding sources to help fund the project.

Represented the Town in a regional Lead and Copper Work Group, which assisted nearby small water systems with compliance.

Per‐ and Polyfluoroalkyl Substances (PFAS) Regulations, Town of Purcellville Water Treatment Plant, Virginia* Responsible for compliance with federal water quality standards for PFAS, promulgated in April 2024. Proactively developed a PFAS monitoring program in 2022 to characterize the extent of PFAS in the Town’s surface water and ground water sources. Developed an Interim Action Plan for the operation of the Town’s water sources to mitigate concentrations in the drinking water supply. Was the first small system in Virginia to apply for and receive funding to conduct a PFAS pilot study in the state. Additional funding awards included $1.7 million under the Emerging Contaminants – Small and Disadvantaged Communities grant to construct a PFAS remedy at a groundwater treatment plant.

Per‐ and Polyfluoroalkyl Substances (PFAS) Legal Claims, Town of Purcellville Water Treatment Plant, Virginia* Prepared and submitted legal claims for 10 Town water sources, including surface water and groundwater, under the Aqueous Film‐Forming Foam (AFFF) Products Liability Litigation. Due to the proactive PFAS monitoring program established in 2022, the Town was able to submit Phase I Settlement claims, as well as Phase I Special Needs claims under the Dupont and 3M settlements.

EDUCATION

MS, Hydrology, University of Arizona, 2000

BA, Geology, Vassar College, PROFESSIONAL

REGISTRATIONS

Registered Geologist, Arizona, No. 35704

PROFESSIONAL AFFILATIONS

American Institute of Professional Geologists (#3676)

American Water Works Association

60422 Highlight

Source Water Protection, Town of Purcellville Water Treatment Plant, Viriginia* Established a Source Water Protection Committee and created a list of recommended actions to protect the Town’s water sources. Implemented key source water protection strategies, including: 1) obtaining grant funding for physical security improvements, such as fencing and video surveillance; 2) preparing an Emergency Drought Response Plan; and 3) establishing a permanent conservation easement on critical watershed property.

Asset Management, Capital Project Planning and Water Rate Setting, Town of Purcellville Water Treatment Plant, Viriginia* Developed and managed an asset management plan for the Water Department, including the implementation of a well rehabilitation program and a water storage tank inspection and maintenance program. Responsible for 5‐ and 10‐year Capital Improvement Planning for over $21 million in projects. Provided assistance to consultant to set water rates for next five years.

Compliance Reporting, Permitting and Regulatory Submittals, Town of Purcellville Water Treatment Plant, Viriginia* Prepared required submittals for the Water Treatment Plant, including: 1) Monthly Operation Reports (VA Health Department); 2) monthly National Pollutant Discharge Elimination System (NPDES) Discharge Monitoring Reports; 3) annual Emergency Planning and Community Right‐to‐Know Act (EPCRA) Sara Tier II Report; 4) annual Consumer Confidence Reports; 5) annual reservoir dam inspection reports and 5‐year dam emergency tabletop exercises (VA Department of Conservation and Recreation); and 6) Virginia Annual Water Withdrawal Reporting for the Town’s grandfathered water rights.

ENVIRONMENTAL CHARACTERIZATION AND REMEDIATION

Tucson International Airport Groundwater Remediation Project, Superfund Site, City of Tucson Oversight of a groundwater pump and treat system capture evaluation, semi‐annual reporting requirements, and on‐going review of extraction well and treatment system performance. Coordinated and provided technical oversight on an optimization evaluation of the existing groundwater monitoring program, which used statistical analyses. The project also included the characterization of a 1,4‐dioxane plume and a subsequent review of viable treatment options for 1,4‐dioxane.

Cyprus Tohono Corporation, Groundwater RI/FS Cyprus Tohono Mine, Tohono O’odham Nation, Arizona Assisted in the development of RI planning documents accepted by the U.S. EPA, the BLM, and the Tohono O’odham Nation. Documents included the RI Workplan and Sampling and Analysis Plan.

Broadway‐Pantano State Superfund Site, Arizona Department of Environmental Quality, Tucson, Arizona Project Hydrogeologist for review of contaminant transport parameters used during groundwater model development. Evaluation of remedial alternatives for a PCE/TCE/VC plume at the Broadway‐Pantano WQARF site in Tucson, Arizona.

Silverbell Landfill State Superfund Site, City of Tucson, Tucson, Arizona Evaluated a groundwater remedy for chlorinated solvents at the Silverbell Landfill. The project included a review of water quality data for evidence of natural attenuation, including biodegradation of chlorinated solvents, and the evaluation of monitored natural attenuation and/or enhanced bioremediation as remedial options for the site. Developed a workplan to conduct a pilot study for enhanced bioremediation of chlorinated solvents in groundwater using benzoate and lactate as a substrate and provided technical oversight of the pilot study activities. Provided technical assistance on a groundwater plume containment plan for chlorinated solvents at the Silverbell Landfill.

Remedial Design, Confidential Superfund Client, Phoenix, Arizona* Developed a remedial design for a Superfund site in Phoenix, Arizona. Reviewed data for evidence of natural attenuation of chlorinated solvents in groundwater and proposed a groundwater monitoring network and sampling parameters to meet EPA criteria for evaluating the performance of monitored natural attenuation as a remedy. Prepared the Remedial Design Workplan and Sampling and Analysis Plan and oversaw the implementation of each. Following five quarters of monitoring, assisted with the development of a groundwater fate and transport model, which demonstrated that monitored natural attenuation was a feasible groundwater remedy. EPA approved MNA as the final groundwater remedy for this site.

Remedial Design, Los Reales Landfill, State Superfund Site, Tucson, Arizona* Conducted fieldwork associated with the design of a groundwater remediation system. The fieldwork included well installation, well development, aquifer testing, and groundwater sampling. Subsequent fieldwork included grouting wells with large screened‐intervals to mitigate cross‐contamination of the aquifer and collecting and analyzing groundwater sample data to evaluate for evidence of reductive dechlorination.

Geophysical Study, Army National Guard, Phoenix, Arizona* Supervised geophysical team as part of site characterization activities. Also supervised well construction and conducted subsequent groundwater monitoring.

Environmental Characterization, F&B Manufacturing, East Central WQARF Area, Phoenix, Arizona* Conducted groundwater monitoring for chlorinated solvents in a State Superfund area. Responsibilities included the collection of monthly water levels and quarterly groundwater samples, as well as the preparation of quarterly monitoring reports.

Environmental Characterization, ITT, Phoenix, Arizona* Conducted groundwater monitoring for chlorinated solvents in a State Superfund area. Responsibilities included the collection of monthly water levels and quarterly groundwater samples, as well as the preparation of quarterly monitoring reports

ENVIRONMENTAL PERMITTING

APP Preparation, Confidential Client, Southeastern Arizona Project Hydrogeologist responsible for preparing an Aquifer Protection Permit (APP) application that would accommodate resumed operations at an inactive Arizona copper mine. Project included material characterization and preliminary facility classification determinations.

APP Preparation, City of Scottsdale, Scottsdale, Arizona* Prepared an APP for a water treatment plant located in Scottsdale, Arizona. Permit application included a review of site geology, hydrogeology, and ambient groundwater quality, as well as a BADCT demonstration for the existing evaporation ponds. Ms. Alter was responsible for subsequent agency and permit negotiations.

APP Preparation, Gila Bend Power Partners, Gila Bend, Arizona* Prepared APP for 840 MW, natural gas, electric generating facility. Permit application included a review of site geology and hydrology, a description of evaporation pond design, a prediction of wastewater quality, and an estimate of discharge rates and volumes. Responsible for subsequent agency and permit negotiations. Assisted in technical meetings with potential investors and in meetings with the Arizona Corporation Commission.

Performed a review of applicable dam construction and safety regulations as they related to the design of berms for the evaporation ponds. The review included an evaluation of permitting and construction requirements for jurisdictional dams.

Permitting Assistance, Fort McDowell Yavapai Nation, Fountain Hills, Arizona* Performed an assessment of regulations related to the construction of recharge basins and the reuse of effluent at a golf course. The assessment included a review of federal and state regulations, including the Clean Water Act, and ADWR and ADEQ regulations. Prepared documentation to demonstrate the site, which is exempt from state regulations, was in general compliance with the intent of those regulations. Specifically, prepared documentation in support of ADWR requirements, including those associated with a Storage Facility Permit and a Water Storage Permit.

APP Major and Minor Permit Modifications, Abitibi Consolidated Sales, Snowflake, Arizona* Responsible for APP compliance oversight, including the preparation of major and minor permit modifications.

The project also included using U.S. EPA Method SW‐846 to develop a sampling plan for a waste lagoon, which was conducted per APP requirements and included a statistical analysis of existing data.

APP Preparation and Landfill Closure Plan, Tucson Electric Power Company, Springerville, AZ * Prepared APP for coal‐powered electric generating facility. Prepared closure plans for an inactive landfill located adjacent to an active ash disposal area. Performed HELP modeling to evaluate the viability of using fly ash and bottom ash as cover material on the inactive landfill. Compiled historical landfill use data and prepared a closure report for submittal to ADEQ.

Permitting Assistance, Irvington Landfill, Tucson, Arizona* Responsible for permitting activities, including reviewing site geology/ hydrogeology and water quality data, conducting a borrow source evaluation, and negotiating permit requirements. Performed regulatory review of ordinances or permit requirements associated with various end uses of the site. The regulatory review included the examination of Section 404 requirements, the WASH/ERZ ordinances, the native plant ordinance, zoning and development standards for the site, the availability of utilities in the area, restrictive covenant requirements, air quality permit requirements, endangered species clearance, NPDES requirements, and state historic preservation clearance.

APP Minor Modification, CALMAT Landfill, Tucson, Arizona* Completed an alternative liner demonstration for the landfill, which included a comparison of Subtitle D final cover system, and ADEQ‐approved final cover system, and an alternative final cover system. The demonstration included the used of HELP modeling. Following the demonstration, Ms. Alter was responsible for preparing a minor modification to the facility’s APP.

APP and Solid Waste Facility Permit, Deer Valley Landfill, Phoenix, Arizona* Prepared an APP and a solid waste facility permit which included HELP modeling, endangered species clearance, State Historic Preservation clearance, closure and post‐closure plans, a hydrogeologic study, and a demonstration of compliance with standards.

Additional Professional Training OSHA Hazardous Waste Operations and Emergency Response Training (8‐Hour Refresher), 2025 Mid‐Atlantic Public Works Institute, Continuing Education through Virginia Tech, 2024 Loudoun County, Virginia, Lead & Copper Rule Revisions and PFAS Workgroup

Publications and Presentations Bartlett, R. Doug, Brinker, F., Hoeger, G., Plashcke, Alter, S.R., Heisenberg and Groundwater Plumes: How the Investigation of a Plume Can Change It: Presented at Arizona Hydrological Society’s Fall Symposium, Flagstaff, Arizona, September 19, 2011.

Schladweiler, C.R., Alter, S.R., Biggs, J. Brinker, F., Optimization of a Long‐Term Monitoring Program at an Arizona Superfund Site: Presented at the EPA’s: Accelerating Site Close‐Out, Improving Performance, & Reducing Costs Through Optimization, Dallas, Texas, June 2004.

Alter, S.R., Collins, M., Byrd, R., Murray, R., Miller, J., Silverbell Landfill Groundwater Remediation Project:

Presented at the 2nd Biennial Symposium on Scientific Issues Related to Management of Landfills in Arid and Semi‐ Arid Regions, Tucson, AZ, March 17, 2004.

Alter, S.R., Brusseau, M.L., Piatt, J.J. Rai‐Maitra, A., Want, J.M., and Cain, R.B., Use of Tracer Tests to Evaluate the Impact of Enhanced‐Solubilization Flushing on In‐Situ Biodegradation, J. Contamin Hydrology, 2003

Alter, S.R., Gordon, D.A., 2001, MNA of Chlorinated Solvents – Legitimate Remedy or Boondoggle?: Presented at the 14th Annual Symposium of the Arizona Hydrological Society, Tucson, AZ, September 12‐15, 2001.

*Indicates projects completed at a different firm.