existing overall plan | uicn plant 3 and willow creek golf course figure 1 – existing overall plan...

EXISTING OVERALL PLAN | UICN Plant 3 and Willow Creek Golf Course

Figure 1 – Existing Overall Plan

LegendLien Holder(498,584 SF or 12 Acres)UICN(7,000,103 SF or 161 acres)WWTP(103,446 SF)

North

EXISTING PRIMARY EFFLUENT POND

EXISTING UICN PLANT 3

EXISTING OVERFLOW PONDS

EXISTING WILLOW CREAK GOLF COURSE PUMP

STATIONEXISTING LAKEVIEWGOLF COURSE PUMP

STATION

EXISTING TWIN PONDS

EXISTING TWIN PONDS PUMP STATION

EXISTING POND

EXISTING POND

EMERGENCY OVERFLOW

POND

EMERGENCY OVERFLOW PONDS

EXISTING ENLARGED SITE PLAN | UICN Plant 3 and Willow Creek Golf Course

Figure 2 – Existing Enlarged Site Plan

UICNPLANT 3 WWTP

OVERFLOW RESERVOIR #2 (OR #2)

MAX POOL EL=2614STORAGE CAPACITY=2.51 AC FT

TOB EL=2615INV OUT EL=2609

OVERFLOW RESERVOIR #1 (OR #1)


TOB EL=2615INV IN EL=2606

INV OUT EL=2608

PRIMARY EFFLUENT RESERVOIR (PER)



WILLOW CREEK GOLF COURSE PUMP STATION

EL=2619

LAKEVIEW GOLF COURSE PUMP STATION

EL=2619

Existing 24-inchPVC Outfall

Existing 16-inchPVC Overflow Line


PER

OR#1

OR#2

• Total existing storage capacity estimated to be 2,127,820 gallons (per Kevin Tucker Design Group, Drawing C-4 of Phase Three Interim Solution Plans dated August 29, 2012).

North

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EXISTING OVERVIEW – Option #1 | UICN Plant 3 and Willow Creek Golf Course



North






STATION

EXISTING TWIN PONDS


EXISTING POND

EXISTING POND

EMERGENCY OVERFLOW

POND


ENLARGED SITE PLAN – Option #1 | UICN Plant 3 and Willow Creek Golf Course

Figure 3 – Enlarged Site Plan Option #1

UICNPLANT 3 WWTP

PRIMARY EFFLUENT RESERVOIR (PER)




EL=2619


EL=2619


PER

Option #1 – New Storage Pond,Remediate PER, Abandon OR#1 and OR#2

• Construct new PER-1 of approximately 4.0 AC FT or 1.3 MG

• Improve booster stations and install new connection to existing wetwells from

PER-1; install new overflow line from PER-1 to PER

• Remediate PER• Add valves to isolate either PER from

plant outfall and pump stations• Total storage volume would match existing volume ~ 2.1 MG

PER-14.0 AC FT

North

Legend Valve

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STATION

EXISTING TWIN PONDS


EXISTING POND

EXISTING POND

EMERGENCY OVERFLOW

POND


ENLARGED SITE PLAN – Option #2 | UICN Plant 3 and Willow Creek Golf Course

Figure 4 – Enlarged Site Plan – Option #2

UICNPLANT 3 WWTP


EL=2619


EL=2619


Option #2 – New Storage Tank,Abandon PER, OR#1 and OR#2

• Construct 2.1 MG storage tank (120 ft dia) or pair of 1 MG storage tanks (60 ft dia each)

• Improve booster stations and install new connection to existing wetwells from

storage tanks

North

Legend Valve

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UICN

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STATION

EXISTING TWIN PONDS


EXISTING POND

EXISTING POND

EMERGENCY OVERFLOW

POND


ENLARGED SITE PLAN – OPTION #3 | UICN Plant 3 and Willow Creek Golf Course

Figure 3 – Enlarged Site Plan Option #3

UICNPLANT 3 WWTP

OVERFLOW RESERVOIR #2 (OR #2)MAX POOL EL=2614

STORAGE CAPACITY=2.51 AC FTTOB EL=2615

INV OUT EL=2609

OVERFLOW RESERVOIR #1 (OR #1)MAX POOL EL=2614


INV IN EL=2608INV OUT EL=2606

PRIMARY EFFLUENT RESERVOIR (PER)MAX POOL EL=2614


INV OUT EL=2610

PROPOSED OUTFALL OF DIVERSION LINE

INV 2615.14

24”x12” GATE VALVE

WILLOW CREEK GOLF COURSE PUMP STATION EL=2619

LAKEVIEW GOLF COURSE PUMP STATION EL=2619

SEDIMENT BASIN FORE BAY WITH SPILLWAY

Option #3 – Remediate Ponds in Place

• Install temporary line to OR#2 (A)• Install temporary suction to booster

pump stations (B) to withdraw from OR#1 and OR#2

• Remediate PER and improve booster pump stations

• Abandon line (B) and use rehabilitated PER

• Install diversion line to OR#2 (C)• Plug overflow line from PER to OR#1• Remediate OR#1• Plug overflow line from OR#1 to OR#2• Remediate OR#2• Abandon in place line (A) and (C)




PER

OR#1

OR#2

A

B

C

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ANALYSIS OF OPTIONS | UICN Plant 3 and Willow Creek Golf Course

Table 3 – Analysis of Options

Option Advantages Disadvantages

Preliminary Opinion of

Construction Costs

Operating Costs

1. New Storage Pond, Remediate PER, Abandon OR#1 and OR#2

• Least complex construction

• Opens space for other use through abandonment of OR#1 and OR#2

• Aesthetically pleasing

In progress In progress

2. New Storage Tank, Abandon PER, OR#1 and OR#2

• Reduced maintenance (eliminates pond maintenance)

• Highest construction cost

• Least aesthetic alternative

In progress In progress

3. Remediate Ponds in Place

• Complicated construction

• Least optimal use of space

UICN Land Remediation

NA NA In progress In progress

existing overall plan | uicn plant 3 and willow creek golf course figure 1 – existing overall plan...

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