Innovative Use of Drought-Resilient Reclaimed Water to Augment Caney River Water Supply October 29, 2018 Terry Lauritsen, P.E. Water Utilities Director, City of Bartlesville Srini Sundaramoorthy, P.E. Principal, S2 Engineering PLLC Trevor Clements Principal Water Resources Scientists, Tetra Tech, Inc.

Presentation Outline Bartlesville Water Supply Portfolio Raw Water Augmentation Concept Concept Feasibility Study

Bartlesville Water Supply Portfolio

Bartlesville Service Area Bville Population – 36,000 Serve 3 surrounding municipalities and 6 rural water districts Land area – 573 sq mi Total Population – 55,000 Avg Daily Use – 6 MGD Max Day – 14 MGD

Water Resources Committee Meeting Raw water pumped from Hulah to Hudson Water Resources Committee Meeting WATER Hulah Built by COE - 1958 Copan Built by COE - 1983 Raw Water Supply (based on water rights) Hulah – 72% Caney River – 19% Hudson – 9% Hudson Built by City - 1949 Water Treatment Plant Caney River (Johnstone Park) Original WS – 1920’s

Raw Water Supply 13,819 acre-feet (12.4 MGD) WTP Hulah Reservoir Copan Lake Lake Hudson WWTP Caney River 13,819 acre-feet (12.4 MGD) Current Reliable Yield – 8.1 MGD Lost 58% of storage since 1958 6,000 acre-feet (5.4 MGD) Min. flow in river – 5.4 MGD River was not considered in PAS 6,000 acre-feet (5.4 MGD) No reliable yield Lost 30% of storage since 1949

Caney River (Johnstone Park) PAS RECOMMENDATIONS Hulah Copan PURCHASE NEW STORAGE AGREEMENTS $57.4MM NEW PIPELINE FROM COPAN TO WATER PLANT $35MM Hudson Water Treatment Plant Caney River (Johnstone Park) 2018 APWAOK & OWEA Technical Conference

State Level Initiatives NEW DEVELOPMENTS AT THE STATE LEVEL 2012 - WATER FOR 2060 LAW APPROVED GOAL TO CONSUME NO MORE FRESH WATER IN 2060 THAN CONSUMED STATEWIDE IN 2012 EXPAND WASTEWATER REUSE AND OTHER NON- POTABLE WATER SOURCES DEQ IPR Rule 252:628 Indirect Potable Reuse (IPR) for Surface Water Augmentation

Caney River Augmentation Concept

Prior Facility Planning Caney RW Intake WWTP

Wastewater Treatment Plant Raw Water pumped from Caney River to WTP Treated effluent pumped from wastewater plant Caney River

Future Water Supply Portfolio (Innovative Augmentation of Caney River)

Concept Feasibility Study

Feasibility Study and Implementation 2017 Bureau of Reclamation Funding – Title XVI Feasibility Study Grant ($150,000) 2017 Bureau of Reclamation Drought Resiliency Project Implementation Grant ($750,000)

Regulatory Review Early Coordination and Dialogue with DEQ Proposed IPR Rule (DEQ 252:628) Addresses Augmentation to Surface Waters Proposed Concept is Considered Stream Discharge Subject to Water Quality (WQ) Standards Compliance with Oklahoma WQ Standards Fish and Wildlife Propagation (FWP) Warm Water Aquatic Community (WWAC) Wasteload /TMDL Study to support compliance with WQ standards

Wasteload Allocation Study 2016 Caney River Scoping Model and Study Evaluated the feasibility of discharging approximately 5 to 7 miles upstream of Caney River Intake

Wasteload Allocation Study Monitoring Study Plan- DEQ Approval July 2017 Time of Travel using dye-tracer study Physical channel measurements Sediment oxygen demand (SOD) study River re-aeration study

Wasteload Allocation Study Caney River Qual2K Model Caney River Field Sampling Completed September- October 2017 Two different flow regimes 24.5 cfs and 96.7 cfs Excellent flow control in the river due to COE assistance and flow management

Wasteload Allocation Study In-situ Measurements

Wasteload Allocation Study Findings Calibration - pH

Wasteload Allocation Study Findings Calibration - Dissolved Oxygen

Wasteload Allocation Study Findings Existing Low Water Dam

Wasteload Allocation Study Findings Corroboration - pH

Wasteload Allocation Study Findings Corroboration - Dissolved Oxygen

Wasteload Allocation Study Findings Model Sensitivity – Tornado Diagram

Wasteload Allocation Scenarios Summer (June 16 to October 15) DO Minimum WQS is 5.0 mg/l Water Temperature 30oC Winter (October 16 to March 31) Water Temperature 18oC Spring (April 1 to June 15) DO Minimum WQS is 6.0 mg/l Water Temperature 25oC

Wasteload Allocation Study Findings Proposed- 50/50 Flow Split (Summer Critical)

Wasteload Allocation Study Findings Proposed- 50/50 Flow Split (Winter Critical)

Wasteload Allocation Study Findings Proposed- 50/50 Flow Split (Spring Critical)

Feasibility Study Conclusions Calibrated and Corroborated Model Demonstrated Assimilative Capacity 50-50 Split discharge between existing outfall and a new discharge located 5 miles upstream during summer and winter critical conditions Model predicts insufficient assimilative capacity during spring critical conditions Model may be overly conservative. Additional monitoring during spring can be considered for future use

Innovative Augmentation COMPARISON OF COSTS VERSUS WATER YIELD COE RECOMMENDATION OF ADDITIONAL WATER STORAGE CONTRACTS AND PIPELINE $92.4MM FOR 16.76 MGD - $5.5MM PER MGD CANEY RIVER AUGMENTATION USING TREATED EFFLUENT $8.5MM FOR 4.1 MGD - $2.1MM PER MGD NEXT STEPS DEQ Approval- 2018 DEQ & OWRB Water Quality Pan Amendment Design and Implementation Treated Effluent Pump Station and Pipeline- 3 Year Schedule

Thank You! S2 Engineering, PLLC Srini@S2ePLLC.COM (918)-519-8081