DATA REPORT
of the
CHEMICAL QUALITY
for the
CURWENSVILLE RESERVOIR, PENNSYLVANIA
1970
Field Operations Branch
Surveillance and Analysis Division
EPA - Region III
Philadelphia, Penna.
-------
TD
3>a$
. N
CS
Chemical Quality of Impoundment Waters
Curvensville Reservoir, Pennsylvania
1970
Data Report
I. INTRODUCTION
The Curvensville Reservoir is located on the West Branch Susquehanna
River near the town of Curvensville (Clearfield County) in north-central
Pennsylvania. The conservation (recreation) pool covers 790 acres at
elevation 1162 feet above mean sea level. The net storage capacity of
the reservoir for flood control purposes is 119,300 acre-feet at the
spillvay elevation of 1228 feet MSL and the flood pool covers 3668 acres.
The impoundment was constructed and is operated by the U. S. Army
Corps of Engineers, Baltimore District, as a part of a comprehensive
plan for flood control, recreation and water quality control in the West
Branch Susquehanna River Basin. Water quality control is necessary owing
to acid mine pollution from abandoned coal mines upstream from the dam.
This pollution has severely degraded water quality in the West Branch
between Karthaus and Lock Haven. At Lock Haven, the river receives
alkaline waters from Bald Eagle Creek which helps neutralize the acid-
polluted waters from upstream. However, during low-flow periods, this
neutralizing effect is lost and fish kills have occurred. To counteract
this condition, the Curwensville Reservoir is operated to store temporarily
these acid waters during low flow periods to prevent or minimize the
U.S. ftPARt'giop. HI
Ko'ri.-voal Cent or for Environment;.;*
IrJbnri^.ijcn
if>50 Arch Stree I, (3PM52)
PblVi-.k-Hivji. PA 7 9UKl
-------
STA.-AV
STA.-B
CONSERVATION POOL EL.
STA.—D
: SAMPLING STATIONS
VICINITY MAP
0 4 8
1 I =1
SCALE IN MILES
-------
2.
severity of fish kills downstream from Lock Haven.
II. PURPOSE
In response to a request from the Baltimore District, U. S. Army
Corps of Engineers, the Federal Water Quality Administration initiated
a sampling program to monitor changes in water quality in the Curvensville
Reservoir after the pool had filled. This report contains the results
of these findings from 1966 to early 19&9*
III. SCORE
The scope of the sampling program was limited to acid mine drainage
parameters including conductivity, pH, acidity, net alkalinity, total
iron, sulfate, manganese and aluminum. In addition, calcium and magnesiuu
determinations were made to evaluate total hardness of the water.
A total of six stations were sampled upstream from the damsit'e as
shown in Fig. 1. Five of these stations were located in the impoundment
with the sixth station (Station I) being located on the West Branch Sus-
quehanna River upstream from the back-water effects of the impoundment.
Two additional stations were located downstream from the damsite. The
first site was located at the discharge conduit from the impoundment and
the second located at the U. S. Geological Survey stream gage site at
Curwensville, O.85 mile downstream from the damsite.
-------
3.
IV. PROCEDURE
Field collection of the samples were made by the U. S. Army Corps
of Engineer personnel using standard field sampling techniques outlined
by the Federal Water Quality Administration. Laboratory analyses were
performed by F.W.Q.A. chemists using methods given in the publication
"Standard Methods for the Examination of Water and Wastewater," APHA,
AWWA, WPCF, 12th ed., 1965.
-------
STATION DESCRIPTION:
Station Number
0
X
A
B
C
D
E
1
Location
West Branch Susquehanna River at Pa.
Rt. 453 at Curwensville, Pa.
At Discharge stilling basin of Curwens-
ville Dam, 0.85 mi. upstream from Sta. 0.
At intake channel of darn, 0-9 miles up-
stream from Sta. 0.
Curwensville Reservoir h.b5 miles up-
stream from Sta. 0.
Curwensville Reservoir 6.^5 miles up-
stream from Sta. 0.
Curwensville Reservoir 8.05 miles up-
stream from Sta. 0.
Curwensville Reservoir 9-15 miles up-
stream from Sta. 0.
West Branch Susquehanna River 10.23
miles upstream from Sta. 0.
-------
TABLE 1
Curwensville Reservoir Data Summary
Water Quality Sampling
1966
Sample
Site
Depth
of
Sample
PH
Conductivity
^ mhos
Net
Alkalinity
A-l
7-1-66
7-22-66
8-11-66
8-13-66
9-1-66
9-22-66
A-2
7-1-66
7-22-66
8-11-66
8-18-66
9-1-66
9-22-66
A-3
7-1-66
7-22-66
8-11-66
8-18-66
9-1-66
9-22-66
k-4
7-1-66
7-22-66
3-11-66
3-18-66
9-1-66
9-22-66
7-1-66
7-22-66
3-11-66
3-18-66
9-1-66
9-22-66
\-6
^18-66
ft.
1
10
15
20
6.5
6.4
6.0
5.3
5.1
3-7
6.4
6.6
5.9
5.3
5-2
4.9
6.5
6.4
6.0
7.4
5-2
4.8
6.1
6.4
5.9
5.2
5.0
4.8
6.0
6.0
4.8
5.0
4.9
4.8
4.9
46o
600
650
560
580
580
430
605
655
570
600
590
4 60
615
655
560
570
590
465
610
650
565
570
580
MO
600
660
590
560
690
600
- 17.4
+ 3-1
- 1.0
- 10.6
- 16.0
- 38.2
+
+
+
+
4.0
3.5
0.7
3.3
8.3
10.6
3.0
+ 2.0
- 1.5
+ 10.3
- 10.2
- 13.7
65.1
1.0
1.5
4.6
19.3
12.0
.6
11.0
12.0
18.8
15.0
- 17.0
-------
TABLE 1
Curwensville Reservoir Data Summary
Water Quality Sampling
1966
Sample
Depth
pH
Conductivity
Net
Site
of
>1 mhos
Alkalinity
Sample
B-l
ft.
7-1-66
1
6.3
620
- 109.2
7-22-66
6.2
710
0.6
8-11-66
k.Q
700
- 29.8
8-18-66
k.9
620
- 17-0
9-1-66
k.9
520
- 30.1
9-22-66
5.2
500
- 5.8
B-2
7-1-66
5
6.k
610
+ k.b
7-22-66
6.2
710
0.8
8-11-66
U.7
720
- 24.3
8-18-66
k.8
580
- IJ.h
9-1-66
k.9
500
- 25.7
9-22-66
5-2
510
- 8.1
B-3
7-1-66
10
6.2
610
+ 1.5
7-22-66
5-9
760
1.6
8-11-66
U. 6
750
- 3^.9
8-18-66
620
- 30.3
9-1-66
U.9
530
- 30.6
9-22-66
5-2
580
- 10.0
7-1-66
15
6.0
600
- 0.7
7-22-66
5.8
760
l.U
8-11-66
U.6
730
- 30.8
8-18-66
b.-j
610
- 21.1
9-1-66
U.8
570
- 34.1
9-22-66
5.1
565
- 11.9
B-5
7-22-66
19
5.8
7^0
- 2.3
8-11-66
b, 6
770
- 30.1
8-18-66
5.1
610
- 95.8
-------
TABLE 1
Curvensville Reservoir Data Summary
Water Quality Sampling
1966
Sample
Site
Depth
of
Sample
pH
Conductivity
p. mhos
Net
Alkalinity
C-l
7-1-66
7-22-66
8-11-66
8-18-66
9-1-66
9-22-66
ft.
1
6.2
5.7
4.8
4.8
>1
5-4
680
750
830
550
580
650
+
l.l
2.5
31.2
21.5
12. ^
8.7
C-2
7-1-66
7-22-66
8-11-66
8-18-66
9-1-66
9-22-66
c-3
7-1-66
7-22-66
8-11-66
8-14-66
9-1-66
9-22-66
6.2
5.6
4.8
4.8
4.4
5-4
6.3
4.0
4.8
4.8
5-0
5.6
680
790
830
520
550
640
680
820
Q4o
520
540
680
+
1.7
0.6
27.6
33.7
29.1
6.4
0.1
19.0
21.8
16.6
14.6
6.4
-------
TABLE 1A
Chemical Data
Curwensville Reservoir, Pennsylvania
Sample
Depth
pH
Conductivity
Net
Total
Mn
S0J+
Ca
Mg
A1
Site
of
p, mhos
Alkalinity
Iron
(mg/:
Sample
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/l)
Outlet 1
(ft)
6-15-67
1
3.3
309
45.8
0.35
0.9
141
39-3
15-9
-
7-5-67
6.4
420
+ 3-2
0.70
1.1
199
50.4
17.5
2.6
7-26-67
4.8
48o
15.6
0.47
1-3
241
49.1
21.7
0
8-16-67
5.6
370
5.3
0.2
1.1
174
42.0
9.2
1.1
8-28-67
5-1
325
8. ?
0.09
1-5
226
13.6
15-3
0
9-18-67
5.2
413
- 33-2
0.0
1.6
168
5.5
14.8
0
7-2-68
7-1
350
1-5
0
0.4
201
- 32.8
11.5
0.0
7-11-68
6.8
300
5.8
0
0.8
151
41.0
13.9
0.0
8-1-68
7.0
340
14.8
0
0.5
248
46.0
1^.5
0.0
8-26-68
7-5
460
25.O
0.16
0.3
117
49.5
16.5
0.0
9-5-68
6.8
360
1.9
0.10
0.1
194
46.0
16.6
0.0
10-16-68
4.4
580
-
0.10
1.1
352
71.0
24.3
0.0
1-27-69
5.0
355
9-9
0.0
1.25
131
35.2
12.0
0.4
2-27-69
4.6
320
- 15.3
0.69
1.00
118
31.2
10.6
0.5
-------
TABLE 1A
Chemical Data
Curvensville Reservoir, Pennsylvania
Sample
Site
Depth
of
Sample
(ft)
PH
Conductivity
Wet
Total
Mn
sou
Ca
Mg
A1
y. mhos
Alkalinity
Iron
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/j
5.9
315
- 3-2
0.U9
1.0
108
35-6
17.3
6.6
390
+ 5
O.Oif
1.0
183
46.1
15-2
0
6.7
if 50
+ 8.3
0.09
1.1
266
69.5
20.2
0
?-3
380
- 7.0
-
1.0
174
i+1.6
9.7
0.7
5-3
320
4.2
0.17
1.1+
302
12.7
15.3
0
6.3
^55
- 35-3
0.00
1.7
251
3.0
9.7
1.8
7.8
3^0
9-93
0
0.3
168
30.9
11.1+
0
6.9
290
7.76
0
0.5
131+
36.0
11.6
0
8.^
330
11.0
0
0.3
2U8
i+6.5
15.3
0
7.6
^75
17.8
0.07
0.03
li+9
2+2+.0
15.2
0.0
6-9
330
12.0
0.11
0.03
191
51.0
18.6
0.0
5-0
2+90
22.2
0.75
1.8
272
54.3
20.2
1.1
6.5
325
0.6
0.0
0.9
131
33.0
11.8
0.0
6.9
235
0.3
0.0
0.6
88
25.6
8.5
0.0
5.9
290
1.2
0.1+1
1.0
22k
37.7
15.3
6.6
2+00
y.h
0.1+3
1.0
Ilk
37.0
11.1+
0
6.7
2+50
7.6
O.llf
1.2
191
59.5
18.6
0
5-9
360
- 15.1
0.1
1.0
183
50.7
10.8
1.1
5.8
300
5.6
0.17
1.2+
193
12.3
1U.8
0.0
5.8
355
- 19.2
0.6
1.2+
218
4.5
13.2
1.0
A
5-15-67
7-5-67
7-26-67
8-16-67
8-28-67
9-18-67
7-2-68
7-11-68
8-1-68
8-26-68
9-5-68
10-16-68
1-27-69
2-27-69
A 2
^15-67
7-5-67
7-26-67
8-16-67
8-28-67
9-18-67
-------
Sample Depth pH Conductivity Net
Site of y. mhos Alkalinity
Sample
A2 [ft]
T-2-68 6.6 330 8.8
7-11-68 6.9 290 11.6
8-1-68 7.9 3U0 11.0
8-26-68 7.4 420 12.1
9-5-68 7-0 330 10.9
2-27-69 6.9 260 0.4
A3
6^16-67 10 5.8 289 1.9
7-5-67 6.6 380 5-1
7-26-67 6.9 450 8.0
8-16-67 5-7 350 - 4.6
8-28-67 5-2 300 - 5-2
9-18-67 5.8 338 - 9-9
7-2-68 6.6 3U0 8.8
7-11-68 6.9 290 10.6
8-1-68 7.4 335 13.6
8-26-68 7-5 410 3.4
9-5-68 7.0 330 10.8
10-16-68 5.9 420 -. 1.2
A-4
^15-67 15 6.0 275 2.9
7-5-67 6.5 382 4.5
7-26-67 6.9 450 6.8
8-16-67 5-6 340 - 5-2
8-28-67 5.3 320 - 4.2
9-18-67 5-8 350 - 7.8
7-2-68 6.6 340 9-3
7-11-68 6.9 290 15.5
8-1-68 7-2 330 10.7
8-26-68 7.2 430 12.3
9-5-68 6.8 320 8.0
Total
Iron
(mg/l)
Mn SO 4 Ca Mg A1
(mg/l) (mg/l) (mg/l) (mg/l) (mg/l)
0.08
0.3
201
35
11.6
0.0
0
0.5
142
34
11.8
0.0
0
0.3
226
47
15.5
0.0
0.15
0.3
156
46
15.2
0.0
0.08
o.o4
172
44
15-9
0.0
0.0
0.6
80.5
25.6
9-0
0.0
0.27
1.0
133
38.6
15.1
0.6
0.24
1.0
183
49.O
14.6
0
0.14
1.1
241
69.5
21.5
0
0.1
1.0
191
42.3
10.0
0
0.1
1.4
260
12.1
15.1
0
0.5
1.5
184
3-5
12.1
0
0.0
0.3
210
34.8
12.3
0.0
0.0
0.5
168
39-0
13.4
0.0
0.0
0.3
241
44.5
14.6
0.6
0.08
0.0
188
44.5
14.4
0.0
0.14
0.03
178
42.5
16.1
0.0
0.35
0.8
231
52.8
19-1
0.0
0.55
0.9
141
37.1
16.0
_
0.23
1.0
182
58.2
17.2
0.4
0.1
1.2
241
53-4
21.0
1-9
0
0.9
174
42.3
10.0
0
0.1
1.4
210
12.0
15-6
0
0
1.5
193
4-5
13.2
0
0
0.3
218
34.4
11.6
0.0
0
0.4
184
42.0
14.2
0.0
0
0.3
226
43.5
15.0
0.0
0.09
0.03
180
{*5-°
14.5
0.0
0
0.02
169
42.5
19-0
0.0
-------
Sample Depth pH Conductivity Net
Site of p. mhos Alkalinity
Sample (mg/l)
_ ^
^15-67 20 5-8 27U - 1.0
8-26-67 6.8 470 7.4
8-16-67 5-7 340 12.2
8-28-67 6.5 310 - 0.7
9-18-67 6.3 350 - 8.6
7-2-68 6.8 330 9-9
7-11-68 6.9 300 15-7
7-1-68 7.0 315 11.4
8-26-68 7.2 450 - 0.7
9-5-68 6.;, 320 7.1
A—6
^15-67 25 5.8 261 0.6
7-26-67 6.9 48o 6.3
8-16-67 5.2 370 - 8.2
8-28-67 5.4 300 - 6.1
9-18-67 6.2 330 - 6.0
7-2-68 6.7 360 10.0
7-11-68 6.8 310 10.9
8-1-68 7.0 320 9.5
8-26-68 7.0 430 12.9
9-5-68 6.5 310 7.7
A-7
3-16-67 30 5-6 360 - .8.3
8-28-67 5-3 350 - 4.0
9-18-67 6.1 343 - 6.1
7-2-68 - 370
7-11-68 6.9 300 23.8
8-1-68 6.8 326 7.0
8-26-68 6.9 4 60
9-5-68 6.5 320 6.2
A-8
7^2-68 34 6.4 345 11.2
Total
Mn
SO^
Ca
Mg
Al
Iron
(mg/l)
(mg/l)
(mg/l)
(nig/l)
(mg/l)
(mg/
0.41
0.9
133
48.7
16.4
0.1
1.1
233
56.7
20.4
1.0
0.1
1.0
191
42.5
9-6
0.6
2.2
1.4
277
11.2
14.8
0
0.5
1.5
184
5-0
14.3
0
0.0
0.3
201
29.3
10.6
0.0
0.0
0.6
184
42.5
14.4
0.0
0.0
0.5
241
43.0
15.0
0.0
0.07
l.l
180
45.5
15.6
0.0
0.08
0.2
163
42.5
15.4
0.0
0.14
0.9
141
42.3
15.6
0.1
1.2
233
60.2
21-5
1.0
0.1
1.0
174
32.3
8.4
0.7
0.1
1.4
285
. 11-3
15.7
0
0.5
0
176
5.0
14.6
0
0
0.4
197
39.6
13-4
0
0
0.6
176
44.0
15-5
0
0
0.6
248
38.7
12.3
0
0
1.2
149
44.5
15.6
0
0
1.4
188
45.5
17-0
0
1.2
1.1
224
40.3
9-7
1.1
2.0
1.6
260
8.2
13.2
0
0
1.5
201
5-0
13.0
0.5
0
0.3
235
39.4
12.6
0.0
0
0.8
184
41.5
14.2
0.0
0
0.7
234
39-5
12.4
0.0
0.07
1.2
172
45.0
14.7
0.0
0.08
1.2
172
42.5
15.6
0.0
0.08
0.3
226
35.9
12.6
0
-------
TABLE LA.
Chemical Data
Curwensville Reservoir, Pennsylvania
Sample
Site
Depth
of
Sample
pH
Conductivity
)x nhos
Net
Alkalinity
(mg/l)
Total
Iron
(mg/l)
Mn
(mg/l)
sou
(mg/l)
Ca
(mg/l)
Mg
(mg/l)
A1
(mg/l)
B-l
(ft)
^15-67
1
6.1
394
+
5-9
0.9
1.1
208
44.0
17.7
-
7-5-67
3o
710
-
560
1.0
1.2
24l
20.7
0
1.7
7-26-67
6.9
490
.J-
6.5
0.2
1.4
291
53.4
20.2
0.1
8-16-67
4-7
360
-
10.0
0.1
1.6
174
37-0
7-7
0.6
8-23-67
5.2
330
-
5-6
0.1
1.5
310
10.7
16.3
0
9-18-67
6.6
330
-
9.4
0
1.3
184
7-0
15-7
0
7-2-68
6.7
kyO
+
12.1
0
0.3
218
45.1
14.9
0
7-11-68
6.7
300
t
1
16.6
0
0.5
159
38.0
12.6
0
8-1-68
7.0
295
J,
10.0
0
0.5
241
41.0
12.2
0
8-26-68
7.6
450
10.4
0.0k
0.3
180
48.8
16.7
0
9-5-68
6.6
345
¦J-
5.0
0
0.2
210
45.5
16.8
0
10-16-68
6.0
430
-
3-7
O.63
0.9
255
5b.3
19-7
0.35
B-2
6-15-67
>
3-4
427
-
28.3
1.0
1.1
199
55.6
19-2
-
7-5-67
6.7
515
7-9
0.5
1.1
241
65.0
22.0
0.6
7-26-67
6.7
U90
4.7
0.2
1.5
257
57.7
20.0
1.0
8-16-67
4.9
360
-
3.3
0.1
1.0
141
35.2
81.2
0.1
3-28-67
5-3
300
-
4.7
0.1
1.6
293
9-3
15-6
0
9-18-67
6.1
3^0
-
8.7
1.2
1.4
210
5-0
15-3
0
7-2-68
6.9
Wo
+
14.1
0.3
0.4
268
49.2
15.4
0
7-11-68
6.9
300
16.3
0.0
0.5
201
43.0
14.2
0
8-1-68
6.9
320
11.7
0.0
0.5
234
38.0
12.1
0
8-26-68
7-6
44o
14.0
o.o4
0.4
156
47.5
16.0
0
9-5-68
6.9
345
6.0
0.0
0.2
194
48.0
17.6
0
-------
Sample Depth pH Conductivity Net
Site of j\ mhos Alkalinity
Sample ("gA)
_ (fT)
££15-67 10 6.0 403 3.8
7-5-67 6.7 540 8.4
7-26-67 6.7 490 4.3
8-16-67 5-4 340 - 6.0
8-28-67 2.9 400 - 249
9-18-67 5.7 355 - 9.1
7-2-68 6.9 455 12.6
7-11-68 6.9 310 8.5
8-1-68 6.8 320 8.7
8-26-68 6.9 470 - 6.1
9-5-68 6.7 345 8.7
10-16-68 6.0 430 - 6.4
B~4
^15-67 15 6.2 390 3.8
7-5-67 6.7 530 7.3
7-26-67 6.9 480 7.5
8-16-67 4.8 350 - 14.0
8-28-67 4.5 370 - 67.1
9-18-67 5.3 350 - 9-7
7-2-68 7.0- 470 12.6
7-11-68 6.9 360 . 10.6
8-1-68 6.8 280 9.7
8-26-68 7-8 - 12.9
9-5-68 6.8 355 7.0
Total Mn S0]+ Ca Mg Al
Iron
(meA) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l)
0.6
1.1
208
58.6
21.2
0.6
1.1
257
62.0
20.7
0
0.3
1.2
257
56.0
19-2
0
0.1
1.1
183
33.3
7-8
1.1
0.1
1.6
318
12.7
18.3
0
0
1.5
210
5.0
13.6
1.5
0
0.3
277
55-0
16.8
0
0
0.5
193
44.0
13.4
0
0
0.6
219
38.5
12.6
0
0.09
0.7
211
52.0
17.2
0
0
0.2
194
46.8
l6.6
0
0.85
0.6
191
48.0
17-6
0
0.7
0.9
208
51.8
18.9
0.6
1.1
266
66.6
20.7
0
0.3
1.2
233
56.3
18.8
0
0.1
1.0
183
42.5
9-2
0.1
1.6
310
11.9
18.0
0
0
1.5
201
4-5
14.2
1.0
0.03
0-3
277
46.0
14.6
0
0
0.5
226
48.0
15.1
0
0
0.7
204
33.0
11.3
0
0.06
0.8
188
52.0
17.2
0.0
0
0.6
216
49.8
17.6
0
-------
Sample Depth pH Conductivity Net
Site of ji mhos Alkalinity
Sample _ _ (mg/l) _
_
£-15-67 20 5-5 331 - lA
7-5-67 6.8 545 + 8.4
7-26-67 3.9 580 - 29.2
8-16-67 4.9 330 8.3
8-28-67 300 - 34.8
9-18-67 5.2 375 - 9-1
7-2-68 7-0 445 13.8
7-11-68 6.9 360 14.3
8-1-68 6.7 305 6.2
8-26-68 7.6 480 4.0
9-5-68 6.5 400 2.4
10-16-68 6.1 450 3-0
B-6
^15-67 25 4.7 301 7.5
7-5-67 6.7 530 •!• 7.3
8-16-67 4.8 360 - 10.6
8-27-67 4.8 460 9-5
9-18-67 5-2 428 - 9.1
7-2-68 7.1 440 16.1
7-11-68 7-0 350 17.3
8-1-68 6.7 305 8.8
8-26-68 6.8 460 - 85.4
9-5-68 6.5 400 39-9
B-7
7-2-68 29 7-0 435 14.8
7-11-68 6.9 340 13 A
8-1-68 6.6 300 6.3
8-26-68 6.8 450 14.3
9-5-68 6.5 420 4.4
Total Mn SO^ Ca Mg A1
Iron
(mg/l) (mg/l) (mg/l) 0°g/l) (mg/l) (mg/l)
0.49
0.6
158
42.4
15.5
0.63
1.1
249
55.3
19-5
0.9
0.5
1.1
274
55-0
21.9
0
0.2
0.9
183
40.3
9-1
0.6
0.1
1.7
335
13.7
19.2
0
0
1.2
234
^•5
14.2
0
0
0.3
235
^5-3
15.0
0
0
0.5
243
^9.5
15.6
0
0
0.8
212
37.0
12.7
0
0
0.9
180
50.0
17.2
0
0
0.9
279
54.0
19.6
0
2.38
0.6
282
50.5
19.5
0
1.0
1.0
l4l
51.6
16.4
0.63
1.1
241
57.6
19.3
1.2
4.1
1.1
174
39.8
9.3
0.7
0.3
1.6
335
13.5
18.5
0
0
1.4
243
5.0
16.5
0.5
0
0.3
226
50.0
15-6
0
0
0.7
243
50.5
16.6
0
0
1.0
212
36.5
12.1
0
0.13
1.3
227
49.5
16.4
0
0
0.9
266
52.8
19.9
0
0
0.3
235
42.6
1U.5
0
0
0.8
210
50-5
15.7
0
0
0.9
204
40.5
13.6
0
0
1.0
180
51.0
17.0
0
0
1.0
228
52.2
20.8
0
-------
TABLE 1A
Chemical Data
Curwensville Reservoir, Pennsylvania
Sample
Depth
PH
Conductivity
Net
Total
Mn
S0^
Ca
Mg
A1
Site
of
}x mhos
Alkalinity
Iron
Sample
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg.
C-l
(ft)
6-15-67
1
6.2
455
7-9
0.65
0.7
233
72.3
24.2
_
7-5-67
7.0
650
9.8
0.55
0.5
307
67.1
25.0
0.6
7-26-67
6.7
600
4.2
0.5
1.1
390
68.1
24.2
0
8-16-67
5.0
340
5.7
0.3
1.0
216
39-9
9-0
0.3
8-28-67
4.9
410
20.6
0.1
1.2
335
16.3
23.0
0
9-18-67
5-0
450
7.0
0.0
1.4
260
7-0
19.2
0.5
7-2-68
5.6
390
7.3
0.05
0.2
193
42.6
14.6
0
7-11-68
6.9
420
20.2
0
0.4
286
59.5
18.5
0
8-1-68
6.6
300
10.7
0
0.7
212
40.0
13.0
0
8-26-68
7.0
460
11-3
0
0.8
203
1+5.5
15.9
0
9-5-68
6.6
360
3-0
0
0.6
203
48.0
17.1
0
10-16-68
6.0
430
4.2
0
0.4
265
47.0
18.4
0
C-2
6-15-67
5
4.4
470
23.2
0.77
0.7
224
67.8
22.7
7-5-67
7-1
615
-
0.48
0.6
307
66.6
31-2
2.1
7-26-67
6.8
590
+ 4.2
0.5
l.l
407
65.5
24.0
0
8-16-67
4.8
3^0
5-0
0.3
0.9
174
36.2
8.3
0.3
8-28-67
3-9
375
- 57.5
0.03
1.3
402
1-5.3
22.8
0
9-18-67
5.1
458
6.3
0.5
1.3
251
7-5
19.0
0
7-2-68
6.6
385
14.0
0.05
0.3
201
42.6
12.8
0
7-11-68
7.0
420
20.2
0
0.5
310
63.0
18.5
0
8-1-68
6.6
270
10.5
0
0.8
190
42.5
14.3
0
8-26-68
7-9
46o
0.6
0
0.6
172
46.5
15.3
0
9-5-68
7.2
360
1.3
0
0.6
208
54.0
18.9
0
-------
Sample
Site
Depth
of
Sample
pH Conductivity
p. mhos
Wet
Alkalinity
(mg/l)
C-3
6^X5-67
7-5-67
7-26-67
8-16-67
8-28-67
9-18-67
7-2-68
7-11-68
8-1-68
8-26-68
9-5-68
10-16-68
C-4
^15-67
7-5-67
7-26-67
8-16-67
8-28-67
9-18-67
TfF7
10
15
6.2
7.0
6.9
5.0
6.0
5.0
6.8
7.1
7.6
7.2
7-0
6.0
5-3
6.9
7.1
it.9
5.0
5.6
1+39
600
630
350
440
46o
380
410
310
470
365
450
450
600
650
340
440
485
4.6
14.7
5-1
4.2
14-3
7.1
16.7
20.3
9.6
8.3
6.4
4-3
5.5
9.2
8.4
6.9
lb.3
8.8
7-2-68
7.0
410
+
15.3
7-11-68
7.1
430
+
12.9
8-1-68
7.2
340
+
1.5
8-26-68
5-8
490
-
12.0
9-5-68
6.7
420
+
4.8
Total Mn SOl^, Ca Mg Al
Iron
(mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l)
0.65
0.7
224
58.6
22.1
0
0.48
0.6
290
66.9
24.3
0
0.6
1.0
374
63.5
26.2
0
0.3
0.9
191
39-9
9.2
0
0.2
1.3
3^3
15-9
23.5
0
0
1.2
268
7.0
17.4
0
0
0.3
142
39.6
13.1
0
0
0.4
268
64.0
19.1
0
0
0.8
182
38.5
13.0
0
0
0.8
203
48.3
16.3
0
0
0.6
181
48.0
l6.6
0
0
0.4
262
^7-5
17.2
0
0.76
0.8
208
65.3
26.2
0
0.36
0.6
307
65.3
24.0
0.8
0.7
1.0
407
67.0
25.6
0
0.3
0.8
183
31.4
7.4
1.3
0.1
1.3
419
15.3
22.5
2.1
0
1.3
285
7.5
19.4
0
0
0.3
226
42.2
13.7
0
0
0.4
310
63.0
20.2
0
0
0.8
226
45.0
16.0
0
0.11
0.8
196
48.3
15.9
0
0
1.0
207
57.7
20.3
0
-------
Sample Depth pH Conductivity Net
Site of ji mhos Alkalinity
Sample (mg/l)
(ft)
7-2-68 19 6.8 k25 15.6
T-11-68 7.1 ^60 2it. 1
8-1-68 7-2 330 9-7
8-26-68 6.3 U50 12.3
9-5-68 6.7 U70 2.1
10-16-68 5.9 h6o - 5.7
Total Mn SO Ca Mg A1
Iron
(mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l)
0 0.3 201 h5.8 15.6 0
0 OA 327 63.O 20.0 0
0 0.8 226 k2.0 15.O 0
0.18 0.7 203 51-5 16.1 0
0 0.9 272 61.3 22.9 0
0.20 0.5 272 54.3 19.0 0
-------
TABLE 1A
Chemical Data
Curwensville Reservoir, Pennsylvania
Sample
Site
Depth
of
Sample
pH
Conductivi ty
ji mhos
Net
Alkalinity
(mg/l)
Total
Iron
(mg/l)
Mn
(mg/l)
soh
(mg/l)
Ca
(mg/l)
Mg
(mg/l)
A1
(mg/l)
D-l
(ft)
£=15-67
1
3.5
1+79
- 125.8
O.U9
0.5
224
64.5
19.2
0
7-5-67
7-0
525
14.4
0.70
0.6
233
60.5
20.7
0
7-26-67
6.7
690
1.5
0.3
l.l
448
73-2
28.1
0
O-16-67
5-1
370
3.6
o.4
0.7
216
39-9
10.4
0.4
8-28-67
it.8
460
- 1H • 3
0.1
1.3
444
15.8
22.7
1.5
9-18-67
5-0
555
14.6
0
1.5
360
8.5
21.0
1.0
7-2-68
7-2
4l0
16.5
0
0.1
193
U5.2
l4.0
0
7-11-68
7-2
480
17.6
0
0.2
285
70.0
20.6
0
8-1-68
7.2
370
11.3
0
0.7
271
54.5
19.0
0
8-26-68
6.4
530
2 26.1
0.07
0.5
2 66
63.0
l6.4
0
9-5-68
6.8
420
5-0
0
0.9
2U7
55.2
19.6
0
10-16-68
6.0
4^0
7.8
0.09
0.4
265
50.5
18.2
0
2-27-69
6.6
4oo
0.9
0.0
1.8
150
38.0
13.4
0
D-2
^15-67
5 6.0
423
1-
4.4
0.35
0.7
208
64.2
20.5
-
7-5-67
7-0
550
8.1
0.43
0.7
266
67.1
23.3
1.2
7-26-67
6.6
700
~r
3.4
0.2
1.2
473
79.6
29.2
0
8-16-67
5.1
360
-
3.9
0.4
0.7
208
42.5
10.2
0.6
8-28-67
4.9
450
-
16.7
0.1
1-3
453
17-6
26.5
1-5
9-18-67
5.1
570
-
16.1
0
1-5
335
8.0
21.3
1.8
7-2-68
7.3
410
16.0
0
0.1
193
43.1
13.4
0
7-11-68
7.3
4 10
19.
0
0.2
302
67.0
20.4
0
3-1-68
7-2
380
13.1
0
0.8
226
54.5
18.4
0
8-26-68
6.5
500
21.1
0.09
0.8
227
64.0
17.2
0
9-5-68
6.6
450
4.8
0
1.0
250
57.7
21.8
0
2-27-69
6.6
370
1.8
0.0
1.8
140
36.6
12.6
0
-------
Sample Depth pH Conductivity Net
Site of mhos Alkalinity
Sample (mg/l)
_ [fF)
STL5-67 10 3-3 488 - 130.2
7-5-67 7-0 600 + 16.7
7-26-67 6-6 660 -1- 4.4
8-16-67 ^.4 410 - 42.9
8-28-67 '1.9 44o
9-18-67 4.8 610 - 29.2
7-2-68 7-2 ino 15-9
7-11-68 7-3 475 2^.0
8-1-68 7-0 385 1U.7
8-26-68 6.6 500 14.5
9-5-68 6.5 490 0
10-16-68 5.9 400 - 5.3
D-4
7-2-68 14 7.3 400 + 16.7
7-11-68 7.4 46o + 25.2
8-1-68 7.0 390 + 1U.7
8-26-68 6.4 500 + 16.0
9-5-68 6.6 510 + 4.3
10-16-68 5-3 48o - 8.9
Total
Iron
(mg/l)
Mn SO^ Ca
(mg/l) (mg/l) (mg/l)
Mg Al
(mg/l) (mg/l)
0.14
0.7
208
53.0
19.2
-
0.70
0.7
266
62.5
23.4
0.3
0.6
1.4
48l
93-2
34.7
3-6
0.9
183
35.2
9.2
1.6
0.03
1.3
486
21.7
29.1
2.1
0
1.3
302
8.0
23.7
1.0
0
0.1
210
45.2
13.9
0
0
0.2
310
67.2
20.2
0
0
0.8
270
50.0
18.0
0
0
0.7
188
53-0
17-5
0
0
1.1
172
64.5
23.2
0
0.09
0.4
315
50.5
18.2
0
0
0.2
176
37-5
12.7
0
0
0.2
293
74.5
21.6
0
0
0.8
263
51.5
18.6
0
0
0.3
203
52-5
17.0
0
0
1.0
244
62.0
23.0
0
0.07
0.8
332
57.3
21.0
0
-------
TABLE 1A
Chemical Data
Curvensville Reservoir, Pennsylvania
Sample
Site
Depth
of
Sample
pH
Conductivity
Wet
Total
Mn
sou
Ca
Mg
A1
p. mhos
Alkalinity
Iron
(mg/]
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/l)
(mg/l)
6.0
442
+
5-7
0.35
0.6
216
62.3
22.0
0
4 .6
670
-
37-6
0.5
1.8
1+32
65.O
24.2
9.2
5.0
Uoo
-
6.0
0.1+
0.8
257
59-1
20.0
0.7
5-1
450
-
10.1
0.1
1.2
360
21.3
28.2
0
5.0
590
-
21.0
0
1.2
31+1+
5-5
16.9
0.5
7-2
If 20
18.1
0
0.1
168
1+5.4
14.8
0
7.2
425
19.1
0
0.06
318
62.5
19.2
0
7-0
U30
11.0
0.1
0.7
282
56.0
21.1
0
6.6
i+90
ll+.o
0
1.5
305
56.0
14.3
0
6.8
520
-
0.5
0
1.2
1+82
69.5
24.9
0
6.7
14-10
6.1
0.03
0.80
153
40.2
13.2
0.0
6.0
445
+
1+.7
0.35
0.5
216
57.5
23.0
4.3
670
-
50.0
0.1+
1.6
1+32
70.0
26.3
9.2
5-1
4io
-
5.8
0.3
0.8
233
46.0
11.7
3.7
4.0
1+90
1+6.9
0.1
l.l
394
16.6
22.7
1.5
5.1
595
-
19-4
0
1.3
335
7-5
22.6
1.8
7.3
1+1+0
f
17.6
0
0.1
268
41.1
13.8
0
7.3
1+80
+
18.2
0
0.2
311
66.0
19.2
0
6.8
1+30
+
21.6
0
0.8
21+8
56.5
21.1
0
6.8
1+80
8.1+
0.05
1.1+
172
56.0
14.2
0
6.3
520
0
0
1.2
413
60.0
23.4
0
6.7
^15
+
11.3
0.0
0.8
11+8
40.8
13.8
0
»
£-1
^15-67
7-26-67
8-16-67
3-28-67
9-18-67
7-2-68
7-11-68
8-1-68
8-26-68
9-5-68
2-27-69
E-2
£Tl5-67
7-26-67
8-16-67
8-28-67
9-18-67
7-2-68
7-11-68
8-1-68
8-26-68
9-5-68
2-27-69
TftJ"
1
-------
Sample Depth pH Conductivity Net
Site of p. mhos Alkalinity
Sample (mg/l)
_ [ft)
7-26-67 9 4 .2 66o - 55.8
8-16-67 5-0 360 - 8.2
8-28-67 5-2 460 - 10.6
9-18-67 4.8 590 - 27.9
7-2-68 7-3 420 + 17.3
7-11-68 7.2 480 + 21.2
8-1-68 6.8 420 + 21.6
8-26-68 6.9 480 + 11.8
9-5-68 6.2 520 + 0.5
Total Mn SOi^ Ca Mg A1
Iron
(mg/l) (mg/1) (mg/l) (mg/l) (mg/l) (mg/l)
0.3
1.6
481
72.4
27-8
9-9
0.4
0.8
208
45.9
11.5
1.3
0.1
1.2
427
19.5
26.0
0
0
1.3
327
7.0
20.5
2.5
0
0.1
201
43.0
13.7
0
0
0.2
277
62.5
19.4
0
0
0.8
292
56.5
20.8
0
0.1
1.3
156
53-0
14.1
0
0
1.2
479
59.5
82.6
0
-------
TABLE LA
Chemical Data
Curwensville Reservoir, Pennsylvania
Sample
Depth
pH
Conductivity
Net
Total
Mn
SO),
Ca
Mg
Al
Site
of
p. mhos
Alkalinity
Iron
(mg/l)
(rn^/l)
(mg/l)
Sample
¦ A ¦
(mg/l)
(mg/l)
(mg/l)
(mg/l)
Inlet 1
(ft)
6-15-67
1
5.1
447
- 6.6
0.35
0.9
125
57-5
22.2
0.6
7-5-6?
7.1
570
16.5
0.3
0.4
257
70.7
22.7
-
7-26-67
b.J
540
- 21.8
0-3
1.3
407
56.0
21.5
5-2
8-16-67
5-0
44 0
- 7.2
0.4
0.8
224
42.3
11. 4
1.1
8-28-67
3-8
550
- 110.6
0
1.4
39^
19.0
24.5
1.5
9-18-67
4.7
590
- 24.7
0
1.4
285
8.0
23.2
0
7-2-68
7-3
430
+ 15.4
0
0.03
218
45.0
14.6
0
7-11-68
7-3
500
+ 24. h
0
0.2
302
67.5
19-7
0
8-1-68
6.8
455
+ 21.6
0
0.5
233
62.5
22.0
0
8-26-68
7-8
450
+ '4.5
0.11
2.4
156
49.5
14.0
0
9-5-68
6.1
530
+ 0.8
0
1.2
473
58.8
23.5
0
10-16-68
5-9
610
- 9-5
0.18
0.6
375
53.0
l8.i|
0
-------
TABLE 1A
Chemical Data
Curwensville Reservoir, Pennsylvania
Sample Depth pH Conductivity Net Total Mn SO^ Ca Mg Al
Site of ji mhos Alkalinity Iron
Sample (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l)
Inlet 2 (ft)
7-5-6? 5 6.1 575 + 11-75 0.43 0.5 250 66.6 24.8 0.8
7-26-67 4.8 570 - 21.47 0.4 1.2 407 56.9 22.0 5.2
-------
TABLE 1A
Chemical Data
Curwensville Reservoir, Pennsylvania
Sample Depth pH Conductivity Net Total Mn SO^ Ca Mg A1
Site of ja mhos Alkalinity Iron
Sample (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l)
Inlet 3 (ft)
7-5-67 9 7.1 565 + 19-33 0.55 0.5 261 70.0 26.2 1.7
-------
TABLE LA.
Chemical Data
Curwensville Reservoir, Pennsylvania
Sample
Site
Depth
of
Sample
pH Conductivity
p. mhos
Net
Alkalinity
(mg/l)
Total
Iron
(mg/l)
Mn
SOi^
Ca
Mg
A1
(mg/l) (mg/l) (mg/l) (mg/l) (mg/l)
X
7-2-68 l
7-3
335
10.0
0
0.4
184
32.0
10.3
0
7-11-68
7-3
310
14.8
0
0.5
184
32.0
12.3
0
8-1-68
6.7
330
26.1
0
0.3
226
44.5
15.4
0
8-26-68
6.6
440
10.2
0.13
0.2
180
48.3
15.7
0
9-5-68
6.8
360
7.9
0
0
316
45.5
16.2
0
10-16-68
5.8
-
0.06
1.1
275
69.5
24.4
0
1-27-69
5.5
300
0.8
0.08
0-9
129
34.6
12.1
0
2-27-69
5.4
275
0.1
0.12
0.6
99
30.0
11.4
0
-------
TABLE 1A.
Chemical Data
Curvensville Reservoir, Pennsylvania
Sample Depth pH Conductivity Net Total Mn 30^ Ca Mg A1
Site of ja mhos Alkalinity Iron
Sample (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l) (mg/l)
Well
Drainage (ft)
7-2-68 6.6 270 k.o 0 0.8 101 23.1 12.3 0
-------
Stalion 7/1 7/22 8/ll 8/l8 9/1 9/22 6/15
66 66 66 66 66 66 67
A-l
6.5
6.4
6.
A-2
6.4
6.6
5.
A-3
6.5
6.4
6.
A-4
6.1
6.4
?•
A-5
6.0
6.0
4.
A-6
A-T
A-8
B-l
6.3
6.2
4.
B-2
6A
6.2
4.
B-3
6.2
5."9
u.
B-4
6.0
5.8
4.
3-5
-
5.8
il.
b-6
B-7
C-l
6.2
5.7
4.
C-2
6.2
5.6
4.
C-3
^ -1
0.3
h. 0
4.
C-4
C-5
D-l
D-2
D-3
D-4
5.3
5.1
3.7
5.9
5-3
5.2
4.9
5.9
7.4
5-2
4.8
5.8
5-2
5-0
4.8
6.0
5.0
4.9
4 .8
5.8
4.9
5.8
4.9
¦V.9
5.2
6.1
4.3
4.9
5.2
3A
4.4
h.9
5.2
6.0
k.7
4.8
5.1
6.2
5.1
-
-
5.5
4.7
4.8
5-1
5.4
6.2
4.8
4.4
5.4
4.4
4.8
5-0
5.6
6.2
5-3
3.5
6.0
3.3
0
9
0
9
8
8
T
6
6
6
8
8
8
TABLE 2
Curvensville Reservoir
pH Data Summary 1966-69
7/5 7/26 8/l6 8/28 9/18 7/2 T/ll 8/1 8/26 9/5 10/l6 l/27 2/27
67 67 67 67 67 68 68 68 68 68 68 69 69
6.6
6.7
5-3
5-3
6.3
7-8
6.9
8.4
7-6
6-9
5.0
6.5
6.9
6.6
6.7
5-9
5-8
5.8
6.6
6.9
7.9
7A
7.0
-
6.4
6.9
6.6
6.9
5-7
5-2
5-8
6.6
6.9
7-4
7-5
7-0
5-9
6.5
6.9
5.6
5-3
5-8
6.6
6.9
7.2
7-2
6.8
-
6.8
5.7
6.5
6.3
6.8
6.9
7.0
7-2
6.5
-
6.9
5-2
5A
6.2
6.7
6.8
7-0
7-0
6.5
5.6
5-3
6.1
-
6.9
6.8
6.9
6.5
6.4
:3.3)
6.9
4.7
5-2
6.6
6.7
6.7
7.0
7.6
6.6
6.0
6.7
6.7
U.9
5-3
6.1
6.9
6.9
6.9
7.6
6.9
6.7
6.7
5-4
-
5-7
6 = 9
6.9
6.8
6.9
6.7
6.0
6.7
6.9
4.8
h.5
5-3
7.0
6.9
6.8
7.8
6.8
6.8
3-9
4.9
4.4
5.2
7-0
6.9
6.7
7.6
6.5
6.1
6.7
-
4.8
4.8
5-2
7.1
7.0
6.7
6.8
6.5
7-0
6.9
6.6
6.8
6.5
7.0
6.7
5.0
4.9
5-0
5.6
6.9
6.6
7.0
6.6
6.0
7.1
6.8
4.8
3-9
5-1
6.6
7.0
6.6
7-9
7.2
7-0
6.9
5-0
6.0
5-0
6.8
7.1
7-6
7.2
7.0
6.0
6.9
7.1
4.9
5-0
5.6
7.0
7-1
7-2
5.8
6.7
6.8
7-1
6.3
6.7
5-9
7-0
6.7
5-1
4.8
5.0
7.2
7.2
7-2
6.4
6.8
6.0
6.6
7.0
6.6
5-1
4.9
5-1
7-3
7.3
7.2
6.5
6.6
6.6^
7-0
6.6
4.4
4.9
4.3
7.2
7-3
7-0
6.6
6.5
5-9
7.3
l.b
7-0
6.4
6.6
5-8
-------
Station 7/1 7/22 S/ll 8/l8 9/1 9/22 6/l5 7/5 7/26 8/16 8/28 9/18 7/2 7/ll 8/1 8/26 9/5 IO/16 1/27 2/27
66 66
66
66
66 66 67
67
67
67
67
67
68
68
68
68
68 68
69
69
E-l
E-2
^'-3
6.0
6.0
-
i+ .6
'+ «3
k.2
5.0
5« l
5-0
5.1
U.o
5-2
5-0
5.1
4.8
7-2
7-3
7.3
7-2
7-3
7-2
7.0
6.8
6.8
6.6
6.8
6.9
6.8
6.3
6.2
5.9
6.69
6.70
1-1
1-2
1-3
p-1
7-1
6.1
7.1
^.7
U.S
5.0
3-8
4.7
7-3
7-3
6.8
7.8
6.1 5-9
X
7.3
7-3
6-7
6.6
6.8 5.8
5-5
5-U
0
(3-3)
6.^
ij.8
3.6
¦>.1
5.2
7.1
6.8
7-0
7.5
6.8 (i+.iO
5-0
k.6
-------
TABLE 3
Chemical Concentrations Not To Be Exceeded
In Drinking Water Supplies
Substance Concentration,
Iron 0-3
Manganese 0.05
Sulfate 250
Ref: Manual for Evaluating Drinking Water Supplies
USPHS, 1969
------- |