SLIPPERY ROCK WATERSHED
COALITION
SR 114 B and D ANOXIC
LIMESTONE DRAIN SYSTEM FACT SHEET

PUBLIC-PRIVATE PARTNERSHIP
PA Game Lands No. 95, Washington Township,
Butler County, PA
FUNDING SOURCE:
Bond Forfeitures Black Fox
PROJECT PARTICIPANTS:
| Hedin Environmental |
CDS Associates, Inc |
| Jesteadt Excavating |
District Mining Operations(Knox) |
| PA Game Commission |
|
COMPLETION DATE:
Major construction completed September
1995
Water Quality Monitoring ongoing: PA DEP,
Knox DMO and Slippery Rock University
MATERIALS USED FOR TREATMENT:
ALD B- 450 Tons Limestone Aggregate #1
ALD D- 1000 Tons Limestone Aggregate #1
WATER COLLECTION AND DISTRIBUTION:
Collection:
ALD B- In a 120’ anoxic collection system,
6” perforated CPP bedded in gravel.
ALD D- 125-gpm flow captured in innovative
collection system including the vertical placement of a 12’ long, 3 foot
diameter, epoxy-coated, steel casing.
Inlet:
ALD B- From the collection system, the
captured flow is distributed by a 4” perforated CPP manifold (23’L) extending
along the east end (width) of the drain.
ALD D- From the collection system, the
captured flow is plumbed onto a 6” PVC pipe and distributed by a 6” perforated
CPP manifold (33’L) extending along the east end (width) of the drain.
Outlet:
ALD B- 4" perforated CPP manifold (23’L)
extending along the west end (width) of the drain and plumbed to a 6” PVC
pipe, which opens up to a rock lined channel leading to Pond B.
ALD D- 4” perforated CPP manifold (29”L)
extending along the south end of the drain and plumbed onto a 6” PVC pipe,
which extended 86 feet to Pond D1.
SYSTEM DIMENSIONS (FEET):
Length Width
Depth Tonnage/Sq. Foot
Anoxic Limestone Drain B
60 30
5
450 T
Anoxic Limestone Drain D
60 30
2.9
950 T
Settling Pond #B
71 85
4
6058
Settling Pond #D1
137 36
2
4944
Wetland #D2
134 52
3 ½
6980
Wetland #D3
119 46
1
5514
Wetland #D4
108 46
1/5
4847
SOIL AMENDMENTS AND SEED MIXTURE:
Birdsfoot trefoil @ 10 lbs/ac; White Dutch
clover @ 4 lbs/ac; KY Bluegrass @ 10 lbs/ac; perennial rye@ 6 lbs/ac; 10-20-20
fertilizer @ 300 lbs/ac; Aglime @ 4 tons/ac
WATER QUALITY (representative):
| |
Flow
|
pH
|
Alk
(mg/L)
|
Acid
(mg/L)
|
Fe (mg/L)
|
| Pre-construction: Raw |
180
|
5.5
|
30
|
50
|
40
|
| Post-construction: Final |
180
|
6.5
|
100
|
0
|
1
|
|