Overview and Project Approach

Clinton is currently experiencing surface water supply shortages in their raw

water source, Clinton Lake, and has been relying solely on their treated water

allocation from the Foss Reservoir.

A long-term water study was conducted by Garver USA, LLC, and the City

requested that Professional Engineering Consultants, P.A. (PEC) review the

findings and develop recommendations.

Project Approach:

– Revise population projection and water demand

– Identify potential surface water sources

– Identify potential ground water sources

– Determine raw water source recommendations based on establishing a diverse water source portfolio

Population and Water Demand

Year Population

Average Daily Demand (MGD)

Residential

Maximum Daily Demand

(MGD) Residential

Average Daily Demand (MGD) Residential + Commercial

Maximum Daily Demand (MGD) Residential + Commercial

2010 9,702 1.50 3.01 2.06 3.572015 10,457 1.62 3.24 2.20 3.822020 11,265 1.75 3.49 2.36 4.102025 12,136 1.88 3.76 2.52 4.402030 13,073 2.03 4.05 2.70 4.722035 14,084 2.18 4.37 2.88 5.072040 15,172 2.35 4.70 3.09 5.442045 16,345 2.53 5.07 3.31 5.872050 17,608 2.73 5.46 3.55 6.282055 18,969 2.94 5.88 3.80 6.742060 20,453 3.17 6.34 4.07 7.24

Existing Sources

Clinton Lake– Good water quality– Very low water levels and small drainage basin– Water treatment plant capable of producing 2.5

MGD – Due to low lake levels, the water treatment plant

has not been in operation since November 2011

Foss Reservoir– Poor water quality– Able to provide Clinton with 0.7 – 2.19 MGD– Water treatment plant in poor condition

Burns Flat Well Field– Unknown water quality– Located on the Elk City aquifer– City has water rights for approximately 0.2 MGD– Existing well field has not been used in 40 years– Low existing well yields

Clinton Lake – June 2012

Foss Reservoir – February 2011

Potential Sources - Purchasing Water

City of Clinton purchasing water from east Custer County

– Known well fields currently using the aquifer as a source.

– The amount of water provided to Clinton would depend on supplier’s demand and treatment capability.

– Arsenic is found in some areas and would require treatment.

– Purchasing water would require a pipeline.

Potential Sources - Surface Water

Lake County Distance from City of Clinton

Area (acres)

Capacity (acre-feet)

Water Quality

Water Availability

Foss Reservoir Custer 9.5 miles 8,800 256,220 Poor Fair

Clinton Lake Washita - 335 3,980 Good Poor

Fort Cobb Reservoir Caddo 30 miles 4,100 80,010 Good Fair

Rocky Lake Washita 20 miles 350 4,120 Poor Poor

Lugert-Altus Reservoir Greer 35 miles 6,260 132,830 Good Fair

Potential Sources - Ground Water

Aquifer Area (acres) Minimum Yield (MGD)

Maximum Yield (MGD)

Dissolved Solids (mg/L)

Distance from City (miles)

Rush Springs 896,000 0.288 0.864 <500 18 - 17

Elk City 193,000 0.036 0.432 300 - 500 18 - 20

Alternatives

Alternative 1 – Construction of a transmission line from the Lugert-Altus Reservoir,

and either augmenting Clinton Lake or directly treating it. – While the Lugert-Altus Reservoir is currently experiencing lower water levels, it has the

largest drainage basin of the surface water options, and has the highest probability of recovery.

– Requires construction of an intake structure, pipeline, easements, and upgrading of the water treatment plant.

Alternative 2 – Obtain water rights and construct a well field in the Rush Springs

aquifer. – Would require little treatment, and could be put directly into the distribution system. – Requires construction of a well field, transmission line and a disinfection station.

Alternative 3 – Construction of a transmission line from the Lugert-Altus Reservoir

and the well field at the Rush Springs aquifer. – Could fill Clinton Lake and treat with existing water treatment plant. – Rush Springs well field to provide a yield of approximately 1.3 MGD.

Alternative Cost Estimates

Alternative 1– Total = $16,475,500.00– Does not include easements or upgrades to the water treatment plant.

Alternative 2– Minimum Yield Total = $12,575,000.00– Maximum Yield Total = $11,975,000.00– Does not include easements.

Alternative 3– Lugert-Altus Total = $16,475,500.00– Rush Springs Total = $11,975,000.00– Total = $28,450,500.00– Assuming maximum yield from well field.– Does not include easements.– Phased construction over several years.

• Phase 1 is Burns Flat well field improvements.

• Phase 2 is the Rush Springs well field – completed incrementally.

• Phase 3 is the construction of the transmission line from the Lugert-Altus Reservoir.

Water Conservation Recommendations

– Clinton should begin a mandatory water conservation policy with the goal to limit the maximum daily demand to 2.19 MGD.

– Residents of Clinton should be required to limit their water usage and minimize non-essential water usage.

– The residents should be made active participants in water conservation with incentives to comply and fines for non-compliance.

– The highest industrial users should explore water reuse options.

– Water from irrigation wells with poor water quality should be utilized with point-of-use treatment.

Raw Water Supply Recommendations

Diverse raw water supply– Foss Reservoir• Continue to utilize their allotment • Only dependable water source available in the short term

– Burns Flat Well Field• Investigate the existing well field on the Elk City aquifer for yield and water quality• Inspect, rehabilitate the wells, stand pipe and transmission lines• Phase 1 construction

– Cost Estimate Range: $5,396,600.00 to $10,331,000.00

– Rush Springs Well Field• Obtain water rights• Phase 2 construction – based on water demand, and to be completed incrementally

– Cost Estimate Range: $11,975,000.00 to $12,575,000.00

– Lugert-Altus Reservoir• Obtain water rights• Phase 3 construction

– Cost Estimate $16,475,500.00

Fort Cobb Reservoir Cost Estimate

ITEM DESCRIPTION QUAN. UNIT UNIT PRICE TOTAL PRICE

1 MOBILIZATION/DEMOBILIZATION 1 LS $ 10,000.00 $ 10,000.00

2 TRAFFIC CONTROL 1 LS $ 2,500.00 $ 2,500.00

3 WATER LINE 158,400 LF $ 85.00 $ 13,464,000.00

4 INTAKE STRUCTURE 1 LS $ 750,000.00 $ 750,000.00

5 ADJUSTMENT TO EXISTING UTILITIES 1 LS $ 5,000.00 $ 5,000.00

TOTAL ESTIMATED CONSTRUCTION COSTS: $ 14,231,500.00

Rocky Lake Cost Estimate

ITEM DESCRIPTION QUAN. UNIT UNIT PRICE TOTAL PRICE

1 MOBILIZATION/DEMOBILIZATION 1 LS $ 10,000.00 $ 10,000.00

2 TRAFFIC CONTROL 1 LS $ 2,500.00 $ 2,500.00

3 WATER LINE 105,600 LF $ 85.00 $ 8,976,000.00

4 INTAKE STRUCTURE 1 LS $ 750,000.00 $ 750,000.00

5 ADJUSTMENT TO EXISTING UTILITIES 1 LS $ 5,000.00 $ 5,000.00

TOTAL ESTIMATED CONSTRUCTION COSTS: $ 9,743,500.00

Lugert-Altus Reservior Cost Estimate

ITEM DESCRIPTION QUAN. UNIT UNIT PRICE TOTAL PRICE

1 MOBILIZATION/DEMOBILIZATION 1 LS $ 10,000.00 $ 10,000.00

2 TRAFFIC CONTROL 1 LS $ 2,500.00 $ 2,500.00

3 WATER LINE 184,800 LF $ 85.00 $ 15,708,000.00

4 INTAKE STRUCTURE 1 LS $ 750,000.00 $ 750,000.00

5 ADJUSTMENT TO EXISTING UTILITIES 1 LS $ 5,000.00 $ 5,000.00

TOTAL ESTIMATED CONSTRUCTION COSTS: $ 16,475,500.00

Rush Springs Minimum Yield Cost Estimate

ITEM DESCRIPTION QUAN. UNIT UNIT PRICE TOTAL PRICE

1 MOBILIZATION/DEMOBILIZATION 1 LS $ 10,000.00 $ 10,000.00

2 GROUNDWATER WELL 11 EA $ 100,000.00 $ 1,100,000.00

3 WATER LINE 132,000 LF $ 85.00 $ 11,220,000.00

4 WELL HOUSE 1 LS $ 200,000.00 $ 200,000.00

5 TESTING 1 LS $ 30,000.00 $ 30,000.00

6 CLEAN UP 1 LS $ 15,000.00 $ 15,000.00

TOTAL ESTIMATED CONSTRUCTION COSTS: $ 12,575,000.00

Rush Springs Maximum Yield Cost Estimate

ITEM DESCRIPTION QUAN. UNIT UNIT PRICE TOTAL PRICE

1 MOBILIZATION/DEMOBILIZATION 1 LS $ 10,000.00 $ 10,000.00

2 GROUNDWATER WELL 5 EA $ 100,000.00 $ 500,000.00

3 WATER LINE 132,000 LF $ 85.00 $ 11,220,000.00

4 WELL HOUSE 1 LS $ 200,000.00 $ 200,000.00

5 TESTING 1 LS $ 30,000.00 $ 30,000.00

6 CLEAN UP 1 LS $ 15,000.00 $ 15,000.00

TOTAL ESTIMATED CONSTRUCTION COSTS: $ 11,975,000.00

Elk City Minimum Yield Cost Estimate

ITEM DESCRIPTION QUAN. UNIT UNIT PRICE TOTAL PRICE

1 MOBILIZATION/DEMOBILIZATION 1 LS $ 10,000.00 $ 10,000.00

2 GROUNDWATER WELL 125 EA $ 100,000.00 $ 12,500,000.00

3 WATER LINE 105,600 LF $ 85.00 $ 8,976,000.00

4 WELL HOUSE 1 LS $ 200,000.00 $ 200,000.00

5 TESTING 1 LS $ 30,000.00 $ 30,000.00

6 CLEAN UP 1 LS $ 15,000.00 $ 15,000.00

TOTAL ESTIMATED CONSTRUCTION COSTS: $ 21,731,000.00

Elk City Maximum Yield Cost Estimate

ITEM DESCRIPTION QUAN. UNIT UNIT PRICE TOTAL PRICE

1 MOBILIZATION/DEMOBILIZATION 1 LS $ 10,000.00 $ 10,000.00

2 GROUNDWATER WELL 11 EA $ 100,000.00 $ 1,100,000.00

3 WATER LINE 105,600 LF $ 85.00 $ 8,976,000.00

4 WELL HOUSE 1 LS $ 200,000.00 $ 200,000.00

5 TESTING 1 LS $ 30,000.00 $ 30,000.00

6 CLEAN UP 1 LS $ 15,000.00 $ 15,000.00

TOTAL ESTIMATED CONSTRUCTION COSTS: $ 10,331,000.00

Burns Flat Well Field

ITEM DESCRIPTION QUAN. UNIT UNIT PRICE TOTAL PRICE

1 MOBILIZATION/DEMOBILIZATION 1 LS $ 10,000.00 $ 10,000.00

2 GROUNDWATER WELL 20 EA $ 100,000.00 $ 2,000,000.00

3 WATER LINE 36,960 LF $ 85.00 $ 3,141,600.00

4 WELL HOUSE 1 LS $ 200,000.00 $ 200,000.00

5 TESTING 1 LS $ 30,000.00 $ 30,000.00

6 CLEAN UP 1 LS $ 15,000.00 $ 15,000.00

TOTAL ESTIMATED CONSTRUCTION COSTS: $ 5,396,600.00