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Tygart Lake State Park

Fast installation of a low-maintenance Bio-Disk® system restored compliance and eliminated odors

End User: West Virginia Department of Natural Resources

Location: Tygart Lake State Park, WV

Capacity: 20,000 GPD

System Commissioned: July 2021



BACKGROUND

When the existing package plant at Tygart Lake State Park began to fail, the WV Department of Natural Resources (DNR) turned to EPC LTD for a reliable solution. With peak season approaching, they needed fast implementation, regulatory compliance, and peace of mind


Issue

  • Failing system exceeding discharge permit limits

  • Strong odors disturbing nearby overnight cabins

  • High maintenance demands on park staff

  • Seasonal flow changes requiring a stable, adaptable solution


The Challenge

  • Tight schedule before high season starts

  • Manpower shortage for operation

  • Nearby guests cabins required a low-noise, odor-free system

  • Finding a cost-effective solution that wouldn’t require high maintenance

  • Park needed a system that could handle large hydraulic fluctuations due to Inflow & Infiltration (I&I)

 

The EPC Solution

EPC installed a Bio-Disk® package plant, a modular, plug-and-play system designed to perform reliably in remote or variable conditions.

System Highlights:




The Results

  • Full compliance with EPA discharge limits

  • Odor and noise issues resolved

  • Minimal OPEX and staff workload

  • Consistent, low-maintenance performance since 2021

Performance Results (Field Data) Consistent performance significantly below permit limits.

Parameter

Typical Range

Average

NPDES Limit

Margin to Limit

BOD₅

2.1–8 mg/L

3–5 mg/L

30 mg/L

83%

TSS

<4–12 mg/L

8 mg/L

30 mg/L

73%

Fecal Coliform

<1–50

>50

200–400

low

DO

7–9 mg/L

~8 mg/L

≥6 mg/L

+33%

pH

6.9–8.1

7.5

6–9

In Range

NH3

0.5-3 mg/L

1.2 mg/L

3 mg/L

60%



Operational Performance















Owner Impact

  • Lower energy cost

  • Minimal sludge handling

  • Reduced labor and travel

  • Lower maintenance requirements



Summary


"The Bio-Disk® system has simplified everything. It cut down our maintenance time dramatically — now our team can focus on the park, not the plant." Facility Operator, Tygart Lake State Park







✅ Get the complete overview in our downloadable case study brochure:




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