Reservoir report

Pennsylvania reservoirs & dams

Every documented dam and reservoir in Pennsylvania — with normal storage capacity, dam height, max discharge, hazard classification, and drainage area. Sourced from USACE NID and state water-resource agencies.

Dams in Pennsylvania

1,487

Total storage

3,973,190ac·ft

High-hazard dams

788

Updated

Jun 4

Open the Pennsylvania reservoir layer on the map Every dam and reservoir filtered to Pennsylvania on the interactive map.

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June

2026

Reservoir report

Pennsylvania has more than 3,000 dams and the majority of them are used for flood control, irrigation and recreational purposes. Some of the major reservoirs in the state are Raystown Lake, Lake Wallenpaupack, and Blue Marsh Lake. These reservoirs are supplied by streams, rivers and creeks such as the Juniata River and the Lackawaxen River. The snowpack in the Pocono Mountains and the Allegheny Mountains contributes to the water supply of these reservoirs. The hydrology in the area is influenced by the Appalachian Mountains and the Atlantic Ocean. The state has experienced record low water levels in some reservoirs during drought conditions. Seasonal trends show that water levels are typically highest in the spring due to snowmelt and lowest in the fall. Overall, these reservoirs play a crucial role in supplying water for the state's agriculture, industries and residents.

Pennsylvania at a glance

Storage, hazard, and history

How the Pennsylvania dam inventory breaks down -- aggregate stats computed across every documented dam in the state.

Hazard classification

High788
Significant311
Low376
Unknown12

USACE downstream-consequence rating, not failure likelihood.

Notable dams

Tallest Harmar Refuse Bank 410 ft
Oldest Hershey Mill 1748
Total storage All Pennsylvania dams 3,973,190 ac·ft

Built by decade

Most U.S. dams were built mid-20th century during the federal water-development era.

Full inventory

Pennsylvania dams & reservoirs

Every documented dam in Pennsylvania. Sortable by any column; quickly filterable by name. Numeric columns heat-mapped from light to deep based on value. Tap any dam for the full report.

Name	Year built	Normal storage	Dam height	Max discharge	Hazard	Drainage area
Aylesworth Creek Dam	1970	62	90	10,000	High	6
Aylesworth Creek Dam - Mayfield Dike	1970	0	28	10,000	High	6
Alvin R. Bush Dam	1962	1,864	165	127,000	High	226
Curwensville Dam	1965	9,500	131	164,000	High	365
Raystown Dam	1973	514,000	225	301,000	High	960
Raystown Dam - Hesston Dike	1973	0	15	301,000	High	960
Foster Joseph Sayers Dam	1969	28,800	100	208,900	High	339
Foster Joseph Sayers Dam - Howard Levee	1966	·	47	0	High	0
Stillwater Dam	1960	12,000	77	37,780	High	37
York Indian Rock Dam	1942	0	83	62,000	High	94
Francis E. Walter Dam	1961	1,793	0	128,000	High	288
Francis E. Walter Dam - Saddle Dike	1961	1,793	0	0	High	288
General Edgar Jadwin Dam	1960	0	0	36,500	High	65
Beltzville Dam	1969	41,220	0	47,000	High	96
Prompton Dam	1961	3,500	0	3,200	High	60
Marsh Run Pond	1960	66	9	·	Undetermined	·
Shuey Lake	1958	53	8	·	Undetermined	·
Marquette Lake	1943	61	27	·	High	6
Siegel Marsh	1958	2,200	12	·	Significant	11
Eaton Reservoir	1939	2,760	22	·	High	1
Smith Reservoir	1925	74	34	·	High	2
Edinboro Lake	1909	2,475	18	·	High	17
Union City Reservoir	1935	320	36	·	High	3
Grahamville Reservoir	1906	140	29	·	High	2
Chapman	1949	287	24	·	High	21
Kinzua Upper Reservoir Dike	1970	5,775	113	0	High	1
Pine Grove	1949	7,670	65	107,300	High	140
Bradford City No 2	1886	553	44	·	High	4
Bradford City No 3	1898	368	47	·	High	5
Bradford City No 5	1957	2,090	68	·	High	7
North Fork (Pa-406)	1960	41	58	·	High	3
Kelsey Creek (Pa-600)	1967	40	66	·	High	3
Lake Nessmuk (Pa-601)	1968	572	52	·	High	2
Hamilton Lake (Pa-602)	1967	543	76	·	High	8
Hills Creek	1951	1,297	32	·	High	4
Griffin (Pa-455)	1963	10	37	·	High	0
Eberle (Pa-456)	1964	7	65	·	High	1
Beechwood Lake (Pa-454)	1963	1,075	63	·	High	3
Mill Creek	1954	120	12	·	High	1
Black Pond	1900	157	13	·	Low	1
Totem Lake	1919	92	12	·	High	1
Chamberlain	1970	310	19	·	High	2
Lake Wesauking	1919	199	7	·	Low	2
Brooklyn Run (Pa-468)	1967	3	64	·	High	0
Lake Montrose	1919	804	14	·	High	1
Lake Chrisann	1961	373	23	·	High	1
Tuscarora Lake	1919	211	12	·	High	1
Hathaway Pond	1919	145	16	·	Significant	2
Romobe Lake	1914	62	8	·	Low	·
Reflection Lake (Romosa Lake)	1952	243	11	·	Low	3
Lower Alford Lake	1919	260	15	·	High	5
Martins Creek (Pa-467)	1967	4	52	·	High	1
Lake Courtland	1962	33	21	·	High	1
Big Elk Lake	1860	500	12	·	Significant	3
Indian Lake	1916	153	39	·	High	2
Rock Run	1917	1,010	42	·	High	5
Lewis Lake	1835	737	15	·	High	7
Page Lake	1863	970	17	·	High	5
Purdy (Stump Pond)	1919	54	7	·	Low	7
Mingo Lake	1895	190	15	·	Low	0
Bel-Aire Lake	1950	89	17	·	High	1
Baker	1963	31	32	·	Low	1
Jeffers Pond	1919	77	13	·	Low	3
Oteyokwa Lake	1965	405	5	·	Significant	0
Horton Lake	1956	280	10	·	High	1
Lakeside Pond	1840	68	12	·	Low	2
Foxton Lake	1874	153	18	·	Low	1
Fullers Lake	1870	61	9	·	Significant	1
Lower Lake	1919	123	7	·	Low	2
Comfort Lake	1916	675	13	·	High	2
Middle Lake	1914	457	7	·	Low	2
Tingley Lake	1919	1,040	7	·	Low	1
Lake Sophia	1957	120	30	·	High	1
Lake Walter	1968	300	32	·	High	0
Glass Pond No 1	1919	79	13	·	High	1
Glass Pond No 2	1914	165	17	·	Significant	0
Williams Pond	1930	491	10	·	Low	4
Suydam (Pa-418)	1960	33	24	·	High	1
Martin (Pa-419)	1960	12	29	·	High	1
Finkleday (Pa-421)	1960	13	20	·	High	1
Varcoe (Pa-415)	1960	8	20	·	High	1
Keuster & Duanio (Pa-416)	1960	6	14	·	High	0
Reservoir No 7	1852	35	13	·	Significant	0
Lake Ladore	1860	1,605	28	·	High	3
Keen Lake	1851	887	26	·	High	15
Kinneyville Pond	1850	98	20	·	Low	9
Starlight Lake	1880	515	9	·	Significant	2
Crystal Lake	1926	399	13	·	High	1
Garrett (Pa-413)	1970	17	27	·	High	2
Lake Watawga	1907	442	12	·	Significant	3
Pa-445	1961	9	31	·	High	1
Deskus (Pa-452)	1963	8	25	·	High	0
Conemaugh Dam	1952	5,140	0	354,000	High	1,351
Crooked Creek Dam	1940	4,500	0	103,200	High	277
Union City Dam	1971	0	0	64,000	High	222
East Branch Dam	1952	64,300	0	35,200	High	72
Kinzua Dam	1965	573,000	0	144,000	High	2,180
Loyalhanna Dam	1942	2,000	0	106,800	High	290
Mahoning Creek Dam	1941	9,550	0	103,000	High	340
Woodcock Creek Dam	1973	4,930	0	24,400	High	46
Youghiogheny Dam	1944	149,300	0	130,500	High	434
Tionesta Dam	1940	7,800	0	103,000	High	478
Shenango Dam	1965	29,920	0	64,000	High	589
Allegheny River Lock And Dam 2	1934	14,500	0	200,000	Significant	11,636
C.W. Bill Young Lock And Dam	1934	16,800	0	200,000	Significant	11,537
Allegheny River Lock And Dam 4	1927	9,000	0	140,000	Significant	11,419
Allegheny River Lock And Dam 5	1927	9,800	0	82,000	Low	9,351
Allegheny River Lock And Dam 6	1928	14,000	0	120,000	Low	9,332
Allegheny River Lock And Dam 7	1931	8,400	0	110,000	Low	8,982
Allegheny River Lock And Dam 8	1931	15,200	0	70,000	Low	8,844
Allegheny River Lock And Dam 9	1938	13,500	0	125,000	Low	8,401
Braddock Locks And Dam	1905	13,700	0	110,000	Significant	7,342
Monongahela River Locks And Dam 3	1907	16,300	0	65,000	Significant	5,340
Charleroi Locks And Dam	1967	25,100	0	100,000	Significant	5,214
Maxwell Locks And Dam	1964	30,900	0	120,000	Significant	4,961
Gray's Landing Lock And Dam	1995	12,500	0	80,000	Significant	4,460
Point Marion Lock And Dam	1959	11,500	0	55,000	Significant	2,715
Emsworth Locks And Dams	1938	42,700	0	300,000	Significant	19,428
Dashields Locks And Dam	1929	17,000	0	235,000	Significant	19,522
Montgomery Locks And Dam	1936	57,500	0	320,000	Significant	22,969
Lake Underwood	1890	310	9	·	Significant	3
Lake Como	1914	675	12	·	Low	4
Trax Farms	1963	21	26	·	High	0
Beaver Pond	1909	176	15	·	High	5
Perch Pond	1913	122	13	·	High	1
Orson Pond	1849	130	16	·	Significant	1
Lake Ellyn	1914	126	12	·	High	1
Locklin Pond	1889	365	13	·	High	5
Lake Paupackan	1914	765	11	·	High	3
Wangaum Falls	1925	169	30	·	High	8
Whitney Lake	1934	476	12	·	Significant	1
Bronson Pond	1913	381	8	·	Significant	2
Duck Harbor Pond	1907	778	16	·	High	4
Lake Quinn	1946	421	12	·	High	10
Brace Brook	1925	154	23	·	Low	2
White Oak Pond	1830	1,694	26	·	High	4
Collins Pond	1867	190	10	·	Low	4
Gouldsboro Lake	1895	1,089	18	·	Significant	4
Lake Natalie	1900	132	10	·	High	16
Lower Woods Pond	1848	890	21	·	High	3
Alder Marsh	1948	78	10	·	High	1
Lake Henry	1865	1,766	11	·	High	6
Lake Constance	1918	173	16	·	Significant	4
Wildwood Lake	1956	290	18	·	High	2
Cobbs Lake	1926	307	13	·	Low	1
Miller Pond	1867	635	25	·	High	1
Beaver Lake	1962	177	32	·	Significant	0
Feldman (Pa-420)	1961	7	33	·	High	1
Beaver Lake	1970	350	30	·	High	1
Belmont Lake	1830	2,035	28	·	High	4
Roamingwood Lake	1971	2,249	32	·	High	10
Cadjaw Pond	1914	921	27	·	High	1
Hankins Pond	1830	452	26	·	High	2
Bunnells Pond	1914	160	17	·	High	11
Freethy	1820	72	26	·	High	12
Camp Cayuga Lake	1931	64	10	·	Low	1
Greene Dreher (Pa-447)	1961	4	20	·	High	0
Clear Lake	1855	393	11	·	Significant	14
Pymatuning	1933	188,000	50	·	High	160
Rainbow (Pa-460)	1964	30	40	·	High	8
Conneaut Marsh	1955	2,700	8	·	Low	68
Lake Irena	1963	62	24	·	Significant	1
Tamarack Lake A (Pa-461a)	1962	3,850	23	·	High	5
Custards	1972	4,294	8	·	Low	78
Meadow Grounds	1964	3,130	43	·	High	3
Valley-Hi Eagle Lake	1964	296	25	·	High	2
Cowans Gap	1936	500	32	·	High	5
Griffin	1888	1,614	40	·	High	4
Coleman	1924	80	7	·	Low	0
Brownell Reservoir	1908	2,599	67	·	High	4
Ryerson Station	1960	2,680	42	·	High	26
Browns	1919	28	25	·	Low	2
Wisecarver	1931	246	35	·	High	4
Virgin Run	1953	420	34	·	Significant	3
Robena Pond No 6	1980	646	115	·	Low	0
Indian Creek	1905	706	40	·	High	110
Deep Creek	1939	95	19	·	High	6
Burnt Cabin Dunlap Creek (Pa-471)	1967	31	39	·	High	2
Askon Hollow	1963	13	28	·	High	2
Lake Julia	1965	47	34	·	High	1
Cave Hollow	1926	9	29	·	High	2
Colonial No 3	1907	23	29	·	Low	2
Keister	1900	92	33	·	Low	2
Erie Pool #4 Dam	1980	85	11	1,569	Low	4
Milltown	1924	18	20	·	High	7
Royal Reservoir	1908	82	32	·	Significant	2
Warrington (Pa-611)	1976	124	45	·	High	11
Conemaugh Township Impounding	1961	25	35	·	Low	2
Mountain Lake	1956	131	22	·	High	1
Lake Stonycreek	1960	2,000	31	·	High	26
Indian Lake	1964	9,288	71	·	High	14
Lake Somerset	1956	1,129	23	·	High	4
Deer Valley Lake	1953	600	22	·	Low	2
High Point Lake	1965	3,700	45	·	High	4
Dalton Run	1905	276	61	·	High	4
Lake Gloria	1958	330	29	·	High	4
North Fork	1932	3,376	105	·	High	10
Laurel Hill Creek	1954	250	22	·	Low	26
Cranberry Glade Lake	1948	153	8	·	Low	2
Bigan	1957	55	24	·	High	2
John C Smith	1932	138	59	·	High	1
Thomas W Koon	1932	6,790	92	·	High	44
Todd Spring Reservoir	1898	76	34	·	High	1
Lake Gordon	1913	3,633	84	·	High	52
Mountain Shadow Lake	1954	128	20	·	High	3
Hadley (Pa-489)	1968	25	51	·	High	5
Clark Mills (Pa-490)	1971	19	45	·	High	3
Mathay (Pa-459)	1962	19	22	·	High	1
Lake Somerset	1969	208	32	·	High	1
Stoneboro (Pa-474)	1966	14	30	·	High	2
Barmore Lake	1903	86	10	·	Low	1
Saul Run (Pa-458)	1963	10	40	·	High	1
Belmont	1903	55	33	·	High	0
Two Mile Run	1971	3,270	85	·	High	8
Beaver Meadows	1936	156	16	40	Low	5
Middle	1922	144	24	·	High	3
Bradys Run	1949	194	33	·	High	14
Homewood	1852	8	28	·	Significant	0
Group Camp	1938	25	20	·	High	7
J C Bacon	1956	10,863	96	·	High	15
Raccoon Creek	1948	1,000	45	·	High	19
Slovene Camp	1966	43	33	·	Low	1
Star Lake	·	334	26	·	High	1
Muddy Run Main Dam	1967	60,500	260	20,000	High	9
Muddy Run Intake Channel Dam	1967	60,500	35	20,000	High	9
Muddy Run East Dike	1967	60,500	12	·	Low	9
Laurel Hill Lake	1940	395	32	·	High	44
North Lake	1972	80	18	·	High	1
Kooser Run	1959	31	27	·	High	3
Thorn Run	1903	560	40	·	High	6
Lake Oneida	1918	1,762	38	·	High	17
Moraine State Park	1968	38,000	55	·	High	53
Wildwood Lake	1908	614	14	·	Low	18
Keystone Station	1965	27,000	100	·	High	21
Round Top	1902	46	8	·	Low	5
Edwards	1917	9	30	·	Low	0
Elroy Face	1954	98	25	·	High	1
Yellow Creek	1969	13,800	62	·	High	53
Hemlock Lake	1970	900	43	·	High	1
Two Lick Creek	1968	16,200	90	·	High	74
Musser Forests	1952	140	22	·	High	0
Cummings	1908	117	29	·	High	2
Giovannini	1955	95	8	·	Low	1
Summit Lake Reservoir	1875	645	30	·	High	1
Sickler Pond	1910	328	9	·	Low	4
Maple Lake	1893	657	23	·	High	1
Labelle Slurry Pond #3	1958	114	245	·	High	0
Elmhurst	1889	2,115	64	·	High	37
Kizer Pond (Pica Pond)	1845	252	9	·	Low	2
Fords Lake	1995	212	17	·	High	1
Hidden Lake	1966	186	17	·	High	1
Beaver Lake Lodge	1933	101	10	·	High	20
Mink Pond	1919	370	12	·	High	18
Wilsonville	1926	132,000	68	56,700	High	228
Tafton Dike	1926	132,000	40	0	High	228
Buehler Lake	1857	95	7	·	Significant	2
Ponderosa Pines	1970	51	15	·	High	0
Egypt Meadow Lake	1935	246	8	·	Low	3
Lower Lake	1959	1,085	23	·	High	11
Lake Wynooska	1926	61	9	·	Low	4
Promised Land	1919	2,554	16	·	High	7
Fawn Lake	1971	1,200	41	·	High	1
Forest Lake	1890	829	8	·	Low	1
Dorys	1919	199	10	·	Significant	6
Valley View	1956	224	18	·	Significant	8
Lake Russell	1957	311	20	·	Significant	1
Taylor Pond (Pa-446)	1963	51	76	·	High	5
Hirsch	1958	64	16	·	Low	3
Walker Lake	1953	307	15	·	High	3
Sky View Lake (Pa-440)	1964	45	32	·	High	2
Beaver Run	1956	350	12	·	Low	37
Pocahontas	1911	181	13	·	High	0
Saw Mill	1968	·	47	·	High	4
W H Walker	1930	184	21	·	Low	59
Wohelo Lake	1953	22	28	·	Significant	4
Glenwood Lake	1930	40	27	·	High	3
Long Pine Run	1970	5,430	112	·	High	8
Laurel Ridge Lake	1956	92	18	·	Low	1
Lake Meade	1967	3,680	42	·	High	9
Antietam	1953	464	70	·	High	4
Sheppard	1934	61	23	·	Low	2
Lake Heritage	1966	2,578	53	·	High	4
Pinchot Lake	1959	2,800	50	·	High	18
Cabin Creek	1925	178	28	·	High	3
Sheppard Myers	1933	620	38	·	High	6
Lake Williams	1912	3,370	58	·	High	45
Lake Redman	1967	5,524	52	·	High	40
Bayly Pond	1961	45	12	·	Low	0
Speedwell Forge	1966	970	35	·	High	24
New Holland Reservoir	1953	92	40	·	High	1
Elmcrest	1955	174	9	·	High	0
Springton (Geist)	1931	10,740	75	·	High	22
Broomall Lake	1883	18	29	·	Low	1
Crum Creek	1920	282	25	·	High	29
Little Pine Creek	1950	1,100	113	·	High	165
John C Youngman	1951	1,627	101	·	High	2
Beaver Lake	1919	297	9	·	High	3
Greenlick Run (Pa-656)	1973	1,574	52	·	High	7
Hunters Lake	1970	1,224	27	·	High	1
Roscoe Burgess	1951	105	17	·	Significant	2
Sullivan	1948	114	11	·	Low	8
Lake Mokoma	1890	843	16	·	High	3
Splash	1958	163	10	·	Low	8
Lake John	1958	509	15	·	Low	1
Dunmore No 7 Reservoir	1872	310	45	·	High	50
Dunmore No 1	1877	230	47	·	High	5
Marshwood	1927	113	14	·	High	2
Eagle Lake	1895	629	12	·	High	0
Larsen Lake	1910	246	12	·	High	15
Big Bass Lake	1957	277	8	·	High	2
Rocky Glen	1903	218	19	·	High	2
Curtis	1887	1,285	45	·	High	2
Glenburn Pond	1854	199	16	·	High	9
Falling Springs	1905	774	61	·	Significant	1
Williams Bridge Reservoir	1893	1,034	54	·	High	5
Lake Scranton	1898	7,642	60	·	High	7
No 5	1888	98	35	·	High	12
Dunmore No 3	1845	55	14	·	Low	0
Duck Pond	1937	125	17	·	High	1
Laurel Run	1894	25	44	·	High	2
Olyphant No 3	1898	115	38	·	Significant	1
Olyphant No 2	1888	9	55	·	Significant	2
Carbondale No 4	1892	752	28	·	High	2
H B Norton	1932	835	37	·	High	30
Laurel Run Reservoir	1970	2,679	84	·	High	9
Whetstone No 2 Storage	1962	107	36	·	High	2
Lower (Pa-487a)	1973	850	20	·	High	20
Peach Bottom Atomic Power	1973	1	34	·	Low	4
Salt Run Reservoir	1911	132	44	·	High	6
Upper Castanea Reservoir	1869	33	30	·	High	3
Warren H Ohl	1965	1,720	59	·	High	3
Knight	1960	170	22	·	High	95
Westcolang Lake	1912	2,290	13	·	High	2
Elm Lake	1972	215	28	·	High	0
Mcconnell Lake	1957	1,437	16	·	Significant	2
Hemlock Lake	1930	918	14	·	High	1
Billings Pond	1865	23	9	·	Low	2
Marcel Lake	1961	160	23	·	High	4
Lower Birchwood Lake	1960	98	12	·	High	1
Adams Brook	1932	107	10	·	Low	2
Upper Rickards	1937	98	9	·	High	1
Lake Lattimore	1930	199	15	·	High	11
Wild Acres Lake	1928	166	9	·	High	2
Beaver Pond	1913	61	14	·	High	7
Lake Maskenozha	1893	380	9	·	High	21
Shohola Marsh	1968	12,610	34	·	High	54
Crescent Lake	1959	153	45	·	High	6
Lake Netimus	1930	52	20	·	High	18
Kintz Creek (Pa-439)	1970	12	36	·	High	4
Panther Lake	1967	276	19	·	Significant	2
Kyle	1910	1,440	33	·	High	6
Cloe Lake	1909	350	43	·	High	3
Brookville Waterworks	1912	50	24	·	Significant	96
Moose Creek Reservoir	1910	52	31	·	High	6
Anderson Creek	1903	1,747	42	·	High	27
Lake Sabula	1870	307	22	·	Significant	4
Lake Rene	1955	3,700	82	·	High	4
Montgomery	1960	697	71	·	High	11
Morrisdale Mine	1919	61	12	·	Low	5
Saltlick	1913	2,630	116	·	High	12
Hinckston	1905	3,340	84	·	High	11
Pioneer Lake	·	153	21	·	High	0
Williams Run	1956	480	43	·	High	4
Warrior Ridge	1906	400	27	65,250	Low	837
Howells Run	1964	1,324	64	·	High	1
Wilmore	1908	3,150	48	·	High	25
Bakerton	1921	28	24	·	Significant	1
Colver	1994	1,309	52	·	High	5
Shirfs Run	1925	61	15	·	Significant	2
Cresson Lakes	1913	104	20	·	Low	8
Ebensburg Storage	1923	92	16	·	High	2
Pocono Woodland Lake	1977	160	13	·	High	0
Martindale	1910	114	22	·	High	1
Philipsburg No 3 (Upper)	1921	46	17	·	High	10
Cold Stream	1889	25	15	·	High	21
Kephart	1974	730	20	·	High	15
Colyer Lake	1966	1,010	38	·	High	8
Nesbitt	1903	3,837	101	·	High	37
Spring Brook Intake	1894	78	33	·	High	42
Watres	1925	5,957	135	·	High	15
Donegal	1967	900	32	·	High	6
Kenda	1932	69	19	·	High	1
Sugar Run	1907	380	60	·	High	0
Big Spring	1907	129	43	·	High	1
Bull Run	1934	180	44	·	High	1
Mammoth Lake	1969	182	15	·	High	9
Pine Creek (North Park Lake)	1936	570	33	·	High	25
Stoughton Lake	1951	200	23	·	Significant	10
Pa-482	1970	32	38	·	High	1
Penn Nursery	1972	54	23	·	High	3
Poe	1938	460	33	·	High	5
Rockview Reservoir	·	39	53	·	High	3
Lake Mount Union	1927	153	51	·	High	3
Whitney Ridge	1899	55	18	·	High	2
Township Line	1900	750	56	·	High	1
Greenwalt	1990	92	27	·	Significant	2
Ligonier Reservoir	1954	45	35	·	High	2
Twin Lakes No 2	1910	215	34	·	High	0
H A Stewart	1920	3,650	86	·	High	6
Keystone State Park	1910	680	45	·	Significant	4
Trout Run	1927	98	41	·	High	2
Upper	1919	77	22	·	Low	7
Beaver Run	1952	34,000	92	·	High	43
Breskin No 2	1971	36	42	·	High	0
Jeannette (Mountain Valley Lake)	1889	230	36	·	Significant	0
Twin Lakes No 1	1908	340	31	·	High	2
Tubmill	1907	614	40	·	High	11
Harmon Creek (Pa-484)	1971	15	67	·	High	1
Dutch Fork	1959	730	42	·	High	18
Claysville Donegal Joint Municipal Authority	1926	25	32	0	High	0
Morganza	1991	44	24	·	Low	2
Canonsburg	1943	820	45	·	High	46
Woodridge Lake	1957	90	26	·	High	1
Steel	1953	89	15	·	Low	4
Dinsmore No 2	1909	79	27	·	High	4
Timber Lake B	1956	60	25	·	Low	1
Emerald Lake	1912	276	38	·	Significant	5
Lloydell	1906	635	43	·	High	8
Sandy Run	1964	58	33	·	High	2
Marshall Reservoir No. 2	1928	240	37	·	Significant	1
Lake Jo-Ann	1950	125	16	·	High	2
Canonsburg No 1	1911	375	36	·	Significant	3
Canonsburg No 2	1932	525	36	·	High	2
Washington No 4	1903	2,837	63	·	High	2
Cherry Valley	1947	604	33	·	High	6
Pa-479	1969	26	63	·	High	1
Washington No 3	1895	318	48	·	High	2
Huntingdon Smithfield Lily Creek	1967	·	37	·	High	2
Trout Run No 4	1882	72	34	·	High	2
Redbank Valley Water Supply	1919	55	8	·	Low	508
Piney	1924	26,600	125	153,300	High	951
York Haven Main Dam	1904	7,800	10	362,500	Low	24,973
York Haven Headrace	1904	7,800	20	350,000	Low	25,000
York Haven East Channel Dam	1918	7,800	8	21,300	Low	24,973
Browns Lake	1964	51	13	·	Low	0
Lake Ondawa	1919	153	18	·	High	1
Derry Rod And Gun Club	1952	47	27	·	High	0
Plane Nine	1907	337	51	·	High	13
Blair Gap	1907	92	47	·	High	3
Hollidaysburg Muleshoe Reservoir	1957	312	66	·	High	7
Canoe Creek	1971	1,485	35	·	High	16
Bellwood	1902	1,047	61	·	High	18
Tipton	1924	1,120	66	·	High	9
Allegheny Storage	1905	184	31	·	High	6
Lakemont Park	1898	26	12	·	High	6
William L. Cochran Impounding	1898	1,120	60	·	High	10
Upper Kittanning	1887	199	45	·	High	10
Scotch Run	1916	37	40	·	Low	2
Lake Altoona	1913	2,566	65	·	High	13
Mill Run	1957	2,990	100	·	High	4
Homer Gap No 2	1913	68	29	·	High	3
Tyrone Reservoir #2	1912	460	51	·	High	6
Biddle Hollow Reservoir	1911	37	33	·	Low	1
Kettle	1888	577	54	·	High	3
Penn Lake	1905	246	34	·	High	7
Olympus Lake	1937	92	24	·	Low	1
Ray T Mantz	1962	129	13	·	Low	2
Bear Creek Lake	1915	490	17	·	High	35
Mountain Lake	1910	192	16	·	High	2
Wadham Creek	1959	·	30	·	High	1
Mill Creek	1898	1,890	74	·	High	3
Laurel Run No 2	1885	107	37	·	High	9
Mill Creek Intake	1914	12	35	·	Low	1
Huntsville	1891	5,880	27	·	High	8
Meadow Run	1909	400	17	·	High	2
Sunrise Lake	1962	49	27	·	Low	3
Lake Aleeda	1965	400	27	·	High	1
Lake Louise	1927	193	16	·	High	3
Lake Manjo	1932	52	15	·	Low	0
Lake Catalpa	1860	562	23	·	High	2
Dehart	1940	23,700	105	·	High	21
Crystal Lake	1888	7,442	32	·	High	3
Lily Lake	1973	1,261	10	·	Low	2
Blue Giant Meadow	1912	150	12	·	Significant	1
Patsys Lake	1900	103	35	·	High	0
Ice Pond	1909	150	13	·	Significant	1
Lake Blytheburn	1912	130	9	·	High	1
Beech Mountain Lake	1966	1,546	29	·	High	8
Harris Pond	1922	153	10	·	High	1
Lake Jean	1950	1,400	26	·	High	3
Hemlock Lake	1950	80	33	·	High	0
Shickshinny Lake	1965	2,450	33	·	High	6
Brown Creek	1958	·	20	·	High	3
Frances Slocum	1965	1,550	51	·	High	6
Gardner Creek	1902	225	47	·	High	4
Pikes Creek	1911	8,823	65	·	High	11
Shaver's Creek	1961	1,224	48	·	High	8
Laurel Creek	1972	3,050	135	·	High	13
Dark Hollow	1934	9	44	·	High	1
Licking Creek	·	182	26	·	High	24
Little Buffalo Creek	1970	1,020	52	·	High	13
Opossum Lake	1961	690	38	·	High	5
Carlisle Raw Water Intake	1904	340	9	·	Low	393
Laurel Lake	1968	160	25	·	High	24
Spruce Run Reservoir	1957	1,600	46	·	High	14
Stony Run	·	26	39	·	Significant	1
Adam T. Bower Memorial	1969	14,209	8	·	Low	18,300
Ash Basin No 2	1955	·	136	·	High	0
Ash Basin No 3	1971	1,000	117	·	High	1
Lake Conewago	1919	77	18	·	Significant	2
Cornwall Tailings	1961	3,213	200	·	High	0
Ebenezer	1820	123	25	·	Significant	1
Stoevers	1820	215	25	·	High	1
Saddlers Run	1957	15	28	·	Low	1
Galvin Pond	1966	74	14	·	Significant	0
Memorial Lake	1946	1,680	37	·	High	8
Lake Sinca	1969	132	24	·	High	0
Mauch Chunk Lake (Pa-462)	1971	4,169	55	·	High	6
Lake Hauto	1914	4,250	33	·	High	9
Penn Forest	1998	20,000	151	·	High	17
Wild Creek	1941	12,583	135	·	High	22
Bear Creek Lake	1964	2,600	35	·	High	2
Pohopoco Creek	1909	77	18	·	Low	105
Quakake	1897	65	15	·	High	16
Sand Spring Run	1951	45	19	·	High	2
Big Boulder Lake A	1957	920	21	·	High	2
Placid Lake	1963	155	23	·	High	0
Green Lane Reservoir	1957	13,430	87	·	High	71
Martins	1886	8	23	·	High	1
R G Struble Lake (Pa-431)	1971	1,025	31	·	High	3
Pickering Creek	1928	1,143	36	·	High	38
Township Line (Airport Road)	1935	597	34	·	High	3
Marsh Creek Reservoir (Pa-437)	1973	6,380	90	·	High	20
Blue Mountain Lake	1908	55	9	·	High	1
Meadow Lake	1916	61	14	·	Significant	4
Shawnee Lake	1927	61	22	·	High	4
Browns Lake	1925	498	18	·	High	2
Lower Lake	1923	55	30	·	Low	5
Lake Lenape	1901	525	10	·	Low	4
Monroe Lake	1926	184	12	·	High	1
Skytop	1930	629	19	·	High	6
Easton Anglers	1929	61	10	·	Low	2
White Heron	1930	614	34	·	High	1
East Stroudsburg	1936	914	48	·	High	2
Analomink Lake	1910	73	11	·	Significant	1
South Pond	1972	19	13	·	High	0
Lake Akiba	1926	126	22	·	High	3
Lake Pinecrest	1959	463	18	·	High	1
F	1916	1,365	43	·	High	2
G	1916	138	25	·	Significant	3
Upper Mount Pleasant	1882	·	20	·	High	1
Lower Mount Pleasant	1882	·	28	·	High	1
Humboldt Reservoir	1911	442	41	·	Significant	1
Pine Run No 1	1884	19	43	·	High	5
Campbells Ledge	1906	214	33	·	Significant	0
Briar Creek Lake Pa-497	1968	360	39	·	High	5
Klines	1885	126	21	·	Low	5
Neifert Creek (Pa-422a)	1968	36	55	·	High	3
Little Schuylkill River (Pa-422)	1968	·	87	·	High	16
Raven Run No 3	1885	215	40	·	High	1
Ringtown No 5	1914	810	62	·	High	1
Ringtown Reservoir No 6	1921	538	50	·	High	2
Brandonville Pumping Station	1900	62	21	·	Significant	3
Eisenhuth Reservoir	1875	921	49	·	High	2
Raven Run No 2	1885	92	37	·	High	1
Wolf Creek Reservoir	1909	1,206	73	·	High	2
Silver Creek Reservoir	1850	640	38	·	High	1
Locust Lake	1954	620	46	·	High	2
Koenigs Creek (Pa-425)	1962	15	25	·	High	1
Kunkels	1870	44	21	·	Significant	2
Auburn	1950	1,900	51	·	High	157
Ashland Reservoir	1926	289	80	·	High	2
Hosensock (Pa-424)	1960	20	35	·	High	2
Upper Owl Creek	1921	920	43	·	High	2
Lower Owl Creek	1883	169	36	·	High	2
Minersville No 4	1912	276	36	·	High	2
Minersville No 3	1856	17	31	·	High	5
Crystal Run Reservoir	1898	200	38	·	High	5
Christian E Siegrist	1994	3,700	125	·	High	15
Sweet Arrow Lake	1923	1,105	36	·	High	21
Lofty Reservoir	1897	276	30	·	Significant	2
Park Place No 3	1909	110	34	·	High	0
Waste House No 1	1884	176	57	·	High	1
Waste House No 3	1902	137	41	·	High	0
Mahanoy Township No 2	1991	68	34	·	High	0
Pole Run No 4	1877	106	42	·	High	1
Shenandoah Creek	1935	23	34	·	Low	0
Lower Tumbling Run	1832	531	49	·	High	6
Upper Tumbling Run	1836	760	55	·	High	6
Mount Laurel (Mud Run)	1879	622	39	·	High	1
Kauffman Reservoir	1896	319	68	·	High	1
Pine Run	1933	480	75	·	High	1
Fawn Lake	1972	342	44	·	High	1
No 1 Dam	1915	25	26	·	Low	0
Indian Run	1926	1,498	94	·	High	2
Deer Lake	1968	67	13	·	High	0
Locust Creek (Pa-423)	1964	4,640	98	·	High	13
Still Creek	1935	8,287	86	·	High	7
Greenwood Lake	1880	1,130	32	·	High	6
Lake Wynonah	1971	5,006	92	·	High	3
Millwater	1955	133	26	·	High	0
Boyertown Reservoir	1929	105	55	·	High	1
Lake Ontelaunee	1935	11,900	52	·	High	192
Maiden Creek Reservoir	1960	90	15	·	Low	0
Indian Run	1890	70	40	·	High	1
Green Hills Lake	1930	104	18	·	High	15
Grace Mine Tailings	1957	913	145	·	High	1
Lake Antietam	1880	310	60	·	High	5
Bernhart	1865	129	30	·	High	3
Hamburg Reservoir	1963	106	53	·	High	1
Hamburg Flood Control (Pa-476)	1965	6	46	·	High	1
Hamburg Flood Control (Pa-477)	1965	11	52	·	High	2
Christman	1972	234	27	·	High	2
Kaercher Creek (Pa 478)	1971	484	56	·	High	1
New Kernsville	1949	583	45	·	High	340
Hopewell	1937	569	29	·	High	3
Scotts Run	1953	200	34	·	High	1
Mud Pond	1940	209	10	·	Low	0
Ridgebury Lake	1973	460	35	·	High	2
Sugar Creek	1956	23	15	·	High	1
Saxe Pond	1929	154	17	·	High	3
Hallowood Acres	1970	288	31	·	High	1
Middle Creek	1971	1,300	18	·	High	7
Lake Renee	1973	163	10	·	High	2
Nockamixon	1973	40,000	112	·	High	73
Lake Latonka	1966	3,316	34	·	High	13
Pine Run (Pa-491)	1970	18	20	·	High	2
Lost Creek	1954	77	18	·	Significant	3
Quemahoning	1912	38,000	100	·	High	95
Lake In The Clouds	1952	228	14	·	High	2
North Arrowhead Lake	1971	433	21	·	High	1
Lake Sheridan	1872	621	10	·	High	6
Boyd Keller Reservoir	1956	278	53	·	High	17
Tamarack Lake B (Pa-461b)	1962	3,850	21	·	High	5
Galion Bay	1971	3,700	37	·	High	4
Wolf Creek	1971	3,700	34	·	High	4
Open Woods Pond	1932	528	9	·	Low	1
Lake Greeley	1916	290	10	·	High	7
Pecks Pond	1906	740	7	·	High	9
Pickerel Pond	1951	360	14	·	High	23
Lower Hemlock Lake	1947	307	15	·	High	1
Decker Swamp	1951	482	11	·	Low	1
Tink Wig Lake	1968	160	11	·	Significant	3
Stairway Lake	1955	51	12	·	Low	1
Lehman Lake	1890	184	10	·	High	21
Saw Creek Club	1919	230	20	·	High	16
Maple Lake	1972	68	35	·	High	0
Pocono Mountain Lake	1973	74	22	·	High	0
Cobey Pond	1962	74	16	·	Low	1
Trout Lake	1900	700	24	·	High	4
Mountain Springs Lake	1919	436	18	·	High	3
Pinecrest Lake (Tamaque Lake)	1927	353	19	·	Significant	2
Stillwater Lake	1900	1,335	8	·	High	13
Hunter Lake	1928	57	13	·	Significant	2
Crescent Lake	1957	64	14	·	Low	1
Lake Swiftwater	1930	188	31	·	High	10
Lake Naomi	1895	1,492	14	·	High	20
Lake Jamie	1956	131	12	·	High	1
Tobyhanna No 2	1951	436	18	·	High	9
Arrowhead Lake	1954	1,077	18	·	High	15
Pocono Lake	1957	5,402	47	48,270	Significant	75
Indian Mountain Lake	1960	313	13	·	High	3
Pinetree Lake	1972	128	25	·	High	2
Spring Mill	1900	230	27	·	Low	3
Hosensack No 4	1885	21	32	·	Significant	4
Leaser Lake	1971	1,657	56	·	High	3
Minsi Lake	1970	960	27	·	High	4
Ironworks	1943	1,995	53	·	High	6
Peace Valley (Pa-617)	1973	6,539	66	·	High	16
Upper Silver Lake	1919	38	15	·	Low	2
Manor Lake	1930	3,805	9	·	Low	5
Van Sciver Lake	1954	9,115	18	·	Low	2
Robin Run (Pa-612)	1971	47	46	·	High	2
Silver Lake	1939	175	8	·	Low	18
Comet Lake	1962	45	38	·	Significant	0
Trout Run	1976	1,129	104	·	High	1
Pa-102	1974	96	15	·	Low	2
Pa-103	1974	301	20	·	Low	1
Pine Run (Pa-616)	1974	128	31	·	High	10
Oxford Valley Mall	1973	34	27	·	High	1
Core Creek (Pa-620)	1976	1,476	47	·	High	10
Village Two At New Hope	1980	13	41	·	Undetermined	0
Glades	1974	1,350	24	·	High	23
Beaverdam Run	1975	7,700	55	·	High	7
Nesquehoning 4th Hollow Reservoir	1975	80	51	·	High	2
Gravel Lick	1974	5,500	75	·	High	1
North Branch Dunlap Creek (Pa-470)	1974	733	57	·	High	1
Sunnyside Energy Park	1975	500	50	·	High	1
Mount Airy	1974	187	42	·	High	3
Goose Pond Run (Pa-464)	1975	23	97	·	High	7
Leavitt Branch (Pa-463)	1976	·	90	·	High	7
Lake Chillisquaque	1971	2,200	54	·	High	6
Bear Gap No 2	1923	1,800	83	·	High	13
Bear Gap No 6	1915	3,200	70	·	High	9
Lake Susquehanna	1973	614	51	·	High	2
Lake Choctaw	1974	276	34	·	High	3
Kern Run (Pa-638)	1983	248	61	·	High	5
Robinson Fork (Pa-647)	1977	279	95	·	High	22
Fawn Lake	1973	44	24	·	High	2
Maple Creek Silt Pond A	1977	37	39	·	High	0
Maple Creek Silt Pond B	1977	35	43	·	High	0
Kahle Lake	1974	4,100	45	·	Significant	5
Reflection Lake	1974	260	19	·	Low	2
Beaver Lake	1975	98	15	·	Significant	2
Acme (Pa-657)	1975	93	33	·	High	3
Frank E Heller	1975	1,627	73	·	High	2
Freshwater Impoundment	1974	410	50	·	High	1
Glade Spring	1973	92	39	·	Significant	0
Shawnee Lake	1950	3,750	56	·	High	38
Deer Lake	1925	47	12	·	High	14
Harmar Refuse Bank	1957	146	410	·	High	0
Russelton Slurry Pond No 3	1967	24	153	·	Low	0
Rocky Spring Dam	1967	72	11	·	Undetermined	·
Lake Letterkenny Dam	1945	48	16	·	Undetermined	·
Erie Pool #7 Dam	1967	124	12	264	Low	746
Holtwood	1910	19,000	55	800,500	Low	26,794
Safe Harbor	1930	144,000	75	1,420,000	Significant	26,117
Robena Slurry Pond No 4	1955	230	135	·	Low	1
Silver Lake	1910	80	6	·	High	5
Lake Marburg	1967	48,500	107	·	High	23
Kessler	1937	61	11	·	Low	3
Lawrence Baker Sheppard	1965	5,077	75	·	High	6
Pleasant Valley	1967	215	42	·	Low	1
Lake Pahagaco	1956	3,380	85	·	High	2
Naus And Newlyn	1968	264	20	·	Low	2
Summit Lake No 2	1919	215	10	·	Low	1
Brier Crest Woods	1973	110	16	·	High	1
Carbaugh Run	1960	153	35	·	High	3
Long Run Reservoir No 1	1885	61	26	·	High	1
Black Rock	1900	221	11	·	Low	1,296
Perrins Marsh	1919	420	6	·	High	2
Lake Carey	1876	3,781	13	·	High	7
Sharpes Pond	1919	277	19	·	Low	1
Negro Pond	1919	300	7	·	High	5
Chamberlain Pond	1919	357	18	·	High	6
Jennings Pond	1900	147	11	·	High	8
Ross	1919	160	8	·	Low	2
Stevens Lake	1961	390	9	·	High	2
Saddle Lake	1965	175	24	·	High	1
Flat Rock	1977	788	21	·	Low	1,809
Fairmount	1927	3,683	32	·	Significant	1,916
Longford Lake	1974	159	37	·	High	0
Fishpond	1975	170	39	·	Low	0
Lake Wilhelm (Pa-475)	1969	17,825	50	·	High	57
Pike Township	1975	25	42	·	Low	4
Indspec No 3	1975	181	59	·	High	1
Beaver Creek (Pa-433)	1975	43	36	·	High	3
Oakland	1896	224	18	·	Significant	2,160
Stephen Foster	1977	948	49	·	High	10
Maple Creek Slurry Pond No 2 - A	1978	1,800	91	·	High	0
Pa-486	1979	34	86	·	High	2
Cross Creek (Pa-661)	1979	5,810	82	·	High	11
Glendale	1960	25,300	60	·	High	42
Lackawanna	1971	2,400	69	·	High	45
George B Stevenson	1956	2,000	166	·	High	243
Sawmill Run	1968	144	58	·	High	3
Hockenberry Run	1980	25	25	·	Low	1
Little Blue Run	1977	64,754	400	·	High	3
Clarence F. Walker Lake (Pa-637)	1970	2,753	53	·	High	18
Towamensing Trails	1977	2,351	38	·	High	2
Blue Marsh Dam	1977	22,897	0	70,000	High	175
Blue Marsh Dam - Bernville Levee	1977	22,897	30	0	High	175
Blue Marsh Dam - Dikes A And B	1977	22,897	25	·	High	175
Mill Club	1908	28	22	·	Significant	2
Hilloch	1951	39	20	·	Significant	1
Norristown (Swede Street)	1800	2,355	12	·	Low	1,765
Loch Alsh Reservoir	1915	36	16	·	High	0
Camp Delmont	1947	40	19	·	Low	35
Neshaminy Falls	1909	218	14	·	Low	211
Spring Garden	1920	31	9	·	Low	165
Hulmeville Park	1800	123	12	·	Low	224
Lake Warren	1935	68	10	·	Low	1
Solebury Farm	1953	49	27	·	High	4
Lake Caroline	1953	32	12	·	Low	2
Ciccotti	1968	58	12	·	Significant	0
Negley	1973	30	19	·	Low	0
Lake Kimberly	1970	50	16	·	Low	0
Naylors Run	1975	·	13	·	High	4
Hamilton Street	1983	50	14	·	Low	1,370
Little Lehigh	1919	25	8	·	Low	187
Northampton	1927	50	8	·	Low	·
Hensingersville	1936	3	18	·	Low	0
Echo Lake	1911	62	10	·	Significant	0
Easton	1943	1,033	30	·	Low	1,373
Upper	1917	51	11	·	Low	75
Lower	1917	28	7	·	Low	81
Illicks Mill	1850	20	15	·	Low	42
Welkinweir	1937	22	16	·	High	1
Forest Lake	1842	604	12	·	Significant	1
Posts Pond	1910	87	10	·	Low	1
Cranberry Lake	1919	15	8	·	Low	1
Crescent Lake	1919	70	9	·	Low	1
Williams Pond	1919	77	10	·	Low	4
Acre Pond	1825	160	12	·	High	4
Brewster Pond	1919	42	9	·	Low	1
Warner	1930	80	13	·	Low	0
Drann	1919	55	12	·	Low	1
Lake Timberline	1958	142	14	·	Low	1
Ross	1974	13	21	·	Significant	1
Thomas Creek (Rc & D-105)	1978	50	24	·	High	1
Stony Garden Reservoir	1912	25	26	·	Low	2
Flagler	1915	38	19	·	Low	2
Manzanedo	1914	21	12	·	Low	1
Marshall Lake	1904	40	9	·	High	8
Lake Minausin	1903	21	20	·	Low	3
Lower	1921	21	24	·	Low	3
Lenape Lake	1927	31	8	·	Low	1
Hidden Lake Dam	1928	0	9	·	Significant	·
Wigwam Lake	1928	32	16	·	High	2
Grubers Lake	1928	28	12	·	Low	4
Pocono Highlands	1928	89	20	·	High	1
Sun Mountain Lake	1934	13	13	·	High	4
Witmer	1941	25	9	·	Low	1
Crawford Lake	1938	73	21	·	High	13
Werrys Lake	1929	37	12	·	Low	0
Alpine Lake	1962	39	11	·	Low	1
Lake Trexler	1962	28	25	·	Low	2
Palmer	1969	46	20	·	Low	1
Millers Pond	1919	230	22	·	High	3
Knecht	1954	28	12	·	Low	1
Buzzard Swamp No 6	1971	293	29	·	High	3
Groff Mill	1919	9	8	·	Low	21
Lake Weiss	1890	31	12	·	Low	4
Lake Strause	1921	30	14	·	Significant	3
Stouffer Lake	1949	6	18	·	High	2
Mosquito Creek	1890	50	15	·	High	1
Hamlin Lake Park	1915	74	10	·	High	57
Strodes Run	1946	37	21	·	Low	11
No 5	1896	18	12	·	Low	9
Lakewood	1915	37	14	·	Low	3
Connell	1915	95	18	·	Low	3
Sones Pond	1919	98	20	·	Low	1
Maple Lake	1954	77	14	·	High	1
Morris Run No 3	1920	38	25	·	High	3
Mill	1863	34	18	·	High	73
Kehm Run	1954	37	27	·	Significant	1
Lake Hamilton	1954	86	15	·	High	4
Nevin Creek (Pa-451)	1972	18	15	·	High	1
Stark	1850	31	20	·	Low	0
Baylors Lake	1946	357	9	·	Low	2
Interlaken	1928	43	10	·	High	0
Compton	1957	49	19	·	High	1
Indian Lake	1928	240	9	·	High	0
Water Supply	1936	37	8	·	Low	2
Keilar	1911	414	19	·	Low	0
Lingertots Pond	1957	49	10	·	Low	2
K-Section	1970	26	12	·	Significant	1
Lake Rowena	1951	21	17	·	Low	5
Helvetia	1921	49	15	·	Low	3
Little Sugar Creek	1966	614	14	·	Low	1
Camp Sinoquipe Lake	1948	40	19	·	Low	6
Whipple	1920	132	16	·	Low	11
Hutchinson	1959	25	20	·	Low	2
Railroad Creek (Pa-615)	1977	·	34	·	High	3
Croops	1958	23	28	·	High	0
Newtown (Pa-621)	1980	56	44	·	High	3
Hilltown (Pa-625)	1980	·	42	·	High	3
Palomino Farms Retention Basin	1977	4	15	·	High	1
Butlers Lake	1941	94	30	·	High	0
Spring Valley Lake	1964	31	43	·	Low	0
Orchard Course No. 3 Impoundment	1925	45	20	·	Low	0
Evans City Waterworks No 1	1954	150	38	·	High	4
Glade Run	1955	612	29	·	High	3
Greisinger	1956	40	19	·	Low	1
Lake Saxony	1958	45	26	·	High	1
Johnston	1978	221	26	·	Low	0
Allison Reservoir	1917	140	45	·	High	1
Rossiter	1919	17	15	·	High	2
Oak Tree	1967	28	24	·	Low	1
William Penn	1916	43	10	·	Low	1
Wicks	1931	34	11	·	Low	2
Lily Pond	1898	72	13	·	Low	2
Gumble Brothers	1950	34	10	·	Low	1
Unger	1947	47	9	·	Significant	0
Sunrise Lake	1970	308	14	·	Significant	1
Lake Florence	1948	57	24	·	Significant	0
Chambers	1820	50	17	·	Low	1
Cokeburg	1902	37	27	·	High	1
Smith And Ponzo	1939	30	24	·	Significant	1
Highlands Farm	1966	41	28	·	Significant	0
Green Valley Farms	1963	55	23	·	Significant	0
Elk Lake	1865	2,448	11	·	High	1
Craft Pond	1892	77	19	·	High	3
Kellow Lake	1900	449	16	·	High	1
House Pond	1925	28	14	·	High	1
Lower Rickards	1955	43	12	·	High	1
Douglas Pond	1964	49	12	·	Low	2
Club	1919	68	8	·	Low	2
Little Keen Pond	1902	92	12	·	Significant	10
Lake Heron	1970	66	25	·	High	0
Wolfe Farm	1966	81	28	·	High	0
Brinkerton	1903	43	29	·	Low	1
Ice Pond	1900	147	7	·	Undetermined	0
Maggio Estate No 2	1953	290	29	·	High	1
Ethel Springs	1900	357	43	·	High	0
Pa-485	1977	44	78	·	High	2
Pa-483	1973	35	74	·	High	1
Pa-480	1979	25	66	·	High	1
Parker	1935	105	25	·	High	18
Rose Valley Lake	1972	3,940	26	·	High	3
Hawk Mountain	1978	61	35	·	High	1
Reynoldsville Storage #5	1901	21	26	·	High	1
Doverspike No 1	1970	85	41	·	High	0
Tioga Dam	1978	9,945	141	218,100	High	280
Tioga Dam - Mansfield Levee	1979	·	29	·	High	·
Hammond Dam	1978	8,625	122	218,100	High	122
Cowanesque Dam	1980	29,876	151	224,000	High	298
Lake May (Section F)	1967	137	22	·	High	0
Hidden Lake	1967	82	20	·	Significant	0
Raw Water Pond	1968	25	25	·	Low	0
Treated Water Pond	1966	778	59	·	High	0
Deer Lake	1906	359	15	·	High	5
Breskin No 1	1973	29	29	·	Low	0
Heritage Reservation	1979	3,100	66	·	High	6
Caledonia Water Company	1967	12	32	·	Significant	1
Mine No 84 - Pond 6 Main	1980	6,098	185	·	High	0
Stanford Avenue Detention Basin	1978	·	27	·	High	1
Oakwood Lake	1947	56	12	·	High	0
Harmar Storage Pond No 4	1980	32	39	·	Low	0
Cherry Tree Farm	1980	57	32	·	Significant	0
Brunner Island Ash Basin No 6	1979	·	39	·	Significant	0
Chalker	1984	43	21	·	High	0
Indspec No 2	1950	25	27	·	High	0
Brague	1970	43	22	·	Low	0
Sadsbury Twp Detention Pond 1	1982	·	15	·	Low	3
Conneautville (Pa-112)	1984	81	41	·	High	0
Pa-481	1984	59	51	·	High	3
Williams	1981	15	39	·	Significant	0
Mitchell Sludge Sedimentation Pond	1982	3	50	·	Significant	0
Isers Run Reservoir	1982	154	20	·	Low	3
Faylor Lake (Pa-636)	1983	687	43	·	High	33
Cross Creek (Pa-662)	1983	598	50	·	High	4
Colvin Sedimentation Pond	1980	33	43	·	Significant	0
Jack Clutter	1983	137	45	·	High	1
Barneston (Pa 432)	1983	·	43	·	High	12
David Mine Sedimentation Pond No 2	1989	65	35	·	High	1
Sludge Bed No 4	1984	186	30	·	High	0
Merriman	1966	95	40	·	High	0
Lake Oyler	·	86	28	·	High	1
Bailey Mine Fresh Water Imp	1984	872	164	·	High	0
Bailey Mine Slurry Impoundment	1984	13,687	315	·	High	0
Montour Ash Basin No 1	1971	465	40	·	High	0
Graterford Sewage Lagoons	1986	130	35	·	Significant	0
Mine No 84 - Pond 7	1980	23	36	·	Significant	0
Richardson	1976	59	26	·	High	0
Duck Pond	1983	440	59	·	Significant	0
Midfield Sedimentation Pond	1988	80	40	·	High	3
Sludge Bed No 5	1983	669	37	·	High	0
Sludge Bed No 6	1983	738	88	·	High	0
Wastewater Treatment	1985	155	45	·	Significant	0
Briar Creek (Pa 498)	1987	·	70	·	High	3
Emerald No. 1 Main Valley Eastern	·	·	310	·	High	0
Cumberland No. 1 Slurry Pond 1	1984	1,049	380	·	High	0
Pegs Run Slurry Impoundment	1983	182	39	·	Low	0
Lindy Lake	1985	45	23	·	High	0
Reddon-Hall	1985	175	23	·	High	1
Horne No 5 Slurry	1984	273	146	·	High	0
Enlow Fork (Pa-648)	1987	·	76	·	High	48
Mill Service No 6	1986	538	80	·	High	0
Billets Pond	·	150	15	·	Low	0
Shaggers Inn Waterfowl	1989	140	17	·	High	0
Sutula/Stroud	·	10	13	·	Significant	0
Lake Steuben	·	24	14	·	High	0
Hull Plan Lake	·	180	25	·	High	1
Briggs Street Detention	·	·	16	·	High	0
Mt Morris Sportsmens Association	·	11	20	·	Significant	0
Eidemiller Lake	1992	16	22	·	High	0
Hidden Valley Pond No 1	1987	7	21	·	High	0
Queen Esther Lake	1972	12	11	·	Significant	0
Nemacolin	1964	42	46	·	Low	0
Ridilla Upper Pond A	·	15	15	·	Significant	0
Upper Boone Lake	1972	20	18	·	High	0
Lakewood Development	1982	9	14	·	Significant	1
Pence	1842	31	13	·	Low	15
Conway Sportsman's Club Upper	1917	15	21	·	Significant	1
Mcdonaldton	1911	49	16	·	Significant	1
Tyler Lake	1919	654	6	·	Significant	1
Lake Watawah	1922	5	19	·	Low	4
Campbells Pond	1946	17	19	·	Significant	1
Mill Pond	1917	·	10	·	Significant	11
Tanglwood Lake	1965	200	18	·	High	1
Clairton Lake	1952	37	15	·	High	1
Upper Ridge	1915	8	25	·	High	1
Lower Ridge	1915	·	20	·	High	1
Spencer Mill	1919	9	16	·	Significant	4
Hidden Valley	1931	9	22	·	High	1
Brier Hill #6	1914	37	22	·	Significant	0
Duffys Run	1966	·	14	·	High	0
Savery Mill	1960	8	14	·	Significant	1
Anthonys Mill	1927	11	15	·	Significant	2
Sonneborn (Witco) Reservoir	1951	19	23	·	High	1
Lowe Lake	1917	89	5	·	Significant	1
East Lake	1919	81	7	·	Low	1
Maple Creek Slurry Pond 1	1973	300	120	·	High	0
Anthony J. Cimini	1984	3,924	15	·	Low	5,682
Mathies Sediment Pond No 5	1982	3	33	·	Significant	0
Manheim Twp Detention Basin No 2	1981	·	15	·	High	0
Sherwood Oaks Lake	1981	18	16	·	High	0
Palmer Park Mall	1981	·	10	·	Significant	2
Errickson Fish Pond	1982	5	15	·	High	0
Nello L Teer Co	1980	11	18	·	Significant	0
Remington Road Detention	1979	5	16	·	High	1
Village At Pine	1979	1	15	·	Significant	0
Millers	1975	14	21	·	High	1
Paradise Lake No 3	1914	9	25	·	Significant	0
Lakeshore	1932	27	24	·	Significant	1
Mathies Mine Refuse Area Pond #2	1982	282	300	·	High	0
Montour Heights Country Club	1987	28	54	·	Significant	0
Northmont Farms Basin #1	1986	·	24	·	High	1
Thorn Hill Park Detention Basin	1987	·	18	·	Significant	0
Laroche College Detention Basin #1	1988	·	18	·	Significant	0
Fairways Lower	1989	12	11	·	High	1
Country Bend	1986	·	12	·	Significant	0
Makefield Glen Detention B	1988	·	12	·	Significant	1
Bradshaw Reservoir	1988	70	20	·	Significant	0
Linpro Detention Basin	1987	·	18	·	Significant	0
Seph Mack	1987	9	21	·	Significant	0
Rinehart	1988	31	12	·	Significant	2
Horsham Towne Lower Pond	1988	4	16	·	Significant	1
Little Sugar Run	·	14	25	·	Significant	2
Lake Elsie	1929	·	9	·	Significant	1
Center Campus Pond No. 1	·	·	19	·	High	1
Hatfield Ferry Sedimentation Pond	·	1	25	·	Significant	0
Mill Creek Detention Basin	1986	·	11	·	High	2
Timber Creek Condo	1985	·	10	·	Significant	0
Timber	1986	17	19	·	Significant	0
Reynoldsville Storage #4	1961	13	16	·	High	1
David Mine Equalization Pond No 3	·	6	21	·	Significant	1
Maple Creek #3 Slurry Pond #1	·	·	115	·	High	0
Huntington Woods Retention Pond	1988	·	20	·	Significant	0
Thomas Meeting Detention Basin	1990	5	5	·	Significant	0
Northmoreland Lake (Pa-117)	1989	139	38	·	High	2
Martins Creek Ses Ash Basin No 4	1989	250	43	·	Significant	0
West Whiteland Business Park	·	·	12	·	Significant	0
Orchard Park Meadows Retention Bas	1989	·	21	·	High	0
Griffis	1989	14	17	·	Significant	1
Horsham Towne Upper Pond	·	8	17	·	Significant	0
Mountaintop Lake #1	1993	524	24	·	High	1
Devon Detention	1986	1	8	·	Significant	1
Bev	1991	80	10	·	Significant	1
Philadelphia Mills	1994	8	24	·	High	0
Banning Refuse Slurry Pond	·	120	65	·	Significant	0
Egelman Reservoir	1901	17	15	·	High	1
Lake George	1989	69	45	·	High	0
Perkins Pond	1870	267	20	·	Significant	7
Slade	·	17	17	·	Significant	0
14-North Impoundment	·	18	42	·	High	0
Little Flipper Lake	1986	13	17	·	Significant	0
Spring Lake	1983	52	22	·	High	0
Andorra Springs Basin B	·	·	16	·	High	0
Hidden Valley Pond No 2	1987	5	14	·	High	0
Mill Service No 5	1976	166	75	·	Low	0
Industrial Wastes, Inc South Pond	1990	·	28	·	Low	0
Mill Rift Pond	1886	3	22	·	High	6
Juniata Lake	1934	20	10	·	Significant	1
Rolling Greens (Bethlehem Twp Det)	1986	·	12	·	High	0
Furnace Run	1915	28	19	·	High	4
Washington School	1976	5	23	·	High	0
Ridley Park Lake	1998	13	15	·	High	3
Pond View Farm	1960	8	10	·	Significant	1
Whitford Ridge Detention Basin	1992	·	13	·	Significant	1
Waterfall Way Detention Basin	·	·	27	·	Significant	0
Kings Crossing	1990	·	10	·	Significant	1
Stonehedge Pond	1990	30	18	·	High	0
Blue Ridge Det	1990	7	16	·	Significant	0
Reservoir No 4	1993	8	18	·	Significant	0
Reservoir No 5	1993	34	20	·	Significant	0
Ashton South	·	6	19	·	High	0
Pocono Mountain Water Forest	1975	80	22	·	Significant	0
Knox Road Detention	1979	·	10	·	Significant	0
Altemus	1987	29	30	·	Significant	0
Cambridge Springs	·	18	14	·	High	1
Pond No 1	1970	50	71	·	Low	0
Swartz	·	28	13	·	Significant	2
West Side Detention	1994	·	9	·	High	0
Crooked Creek (Pa-488)	1994	131	29	·	High	40
Bridgeport (Pa-655)	1992	321	49	·	High	32
Laroche College Detention Basin #2	1992	·	17	·	Significant	0
Lauer Run Detention Basin	1991	·	9	·	Significant	2
Laurelwood	1993	·	14	·	Significant	0
Whitetail Land Co - A	1993	275	51	·	High	2
Estates Of Audubon	1992	·	20	·	Significant	0
Kapp	1990	47	25	·	Low	0
Timber Lake	1990	18	17	·	Significant	1
Hibernia (Pa-436f)	1994	1,225	65	·	High	5
Baugher	1979	29	18	·	Low	0
Irrigation Pond	1989	9	26	·	Low	0
Pngc Reservoir No 6	·	6	11	·	High	0
Wittmer Road Detention	1990	·	25	·	High	0
Ambrose Mine	·	11	26	·	Low	0
Cooling Pond A	1995	129	49	·	Low	0
Stinson Run	1985	46	29	·	Low	0
Ashley Furniture	1991	·	11	·	Undetermined	0
Lake-O-Meadows	·	·	7	·	Low	1
Benchley Pond	·	·	8	·	Low	1
Haighs Pond	·	·	13	·	Low	1
Lake Nephowen	·	276	9	·	Low	1
Vanderpool	1979	84	14	·	Low	3
Pa-113	1980	42	23	·	Low	1
Rehfeldt	1983	112	15	·	Low	1
Wanzo	·	61	11	·	Low	1
Lindenhurst Road - Basin B	·	·	9	·	Significant	0
Treesdale Impoundment #1	·	17	15	·	High	1
Amerikohl Management	1983	29	29	·	Low	0
Fawn Mine #91 Refuse Impoundment	·	760	120	·	High	0
Bathgate Detention Pond	1991	1	21	·	High	0
Hankin	1989	6	100	·	Low	1
Pond No 2	·	15	36	·	Low	0
Pond No 3	·	25	28	·	Low	0
Janesville	·	58	12	·	Low	8
Scotch Valley Estates	1978	267	14	·	High	1
Pa-104	1975	12	8	·	Low	0
Lake La Tsuga	1877	·	8	·	Low	1
Hartstown No 15	1989	648	10	·	Low	6
Children's Lake	·	18	11	·	Significant	3
Snyner-Westhaver	1979	52	18	·	Low	1
Toland Mine	1981	·	28	·	Low	0
Pond C	·	64	10	·	Undetermined	·
Swatara	1935	501	10	·	Low	521
Leachate Equalization Impoundment	1992	·	95	·	Low	2
David Strongs	·	50	24	·	Low	0
Sweny	1983	34	24	·	Low	0
Lower	1906	59	36	·	High	0
Youghiogheny Intake	·	·	10	·	Low	762
Isabella Fresh Water	·	410	122	·	Significant	1
Roxbury	·	1,013	60	·	High	34
Waynesburg Lakes	·	3	26	·	Low	0
Diamond Lake	·	6	35	·	Low	0
Neely	·	·	30	·	Low	0
Conemaugh Equalization Pond	1987	·	31	·	Low	1
Doverspike Brothers	·	18	27	·	Low	0
Spangenberg Lake	1949	240	15	·	Significant	0
Needle	1974	·	11	·	Low	4
Sediment Basin No 3	·	40	20	·	Low	0
Sediment Basin No 4	1989	76	21	·	Low	1
Pine Grove	1919	153	10	·	Low	145
Muddy Run Recreation Dam	1967	2,700	90	11,000	Low	4
Dutch Country Egg Farm	·	·	29	·	Low	1
Detention Pond	1984	·	32	·	Low	0
Pine View	·	·	18	·	Low	0
Harkins Pond	·	84	12	·	High	0
Pond	·	·	15	·	Low	14
No 1	·	·	8	·	Low	14
Summit Lake No 1	1919	60	8	·	Significant	1
Golf Ridge Lower	1996	2	12	·	High	0
Water Control Structure	·	·	10	·	Undetermined	250
Mill Pond	1929	239	29	·	High	0
Sandspring Lake	·	·	15	·	Low	1
Lake Lloyd	·	129	10	·	Low	1
Crystal Lake	1912	51	16	·	Low	1
Westmoreland-Fayette Council Bsa	1987	26	20	·	Low	0
Painter Den Pond	·	153	10	·	Low	1
Prospect Pond	2001	157	9	·	High	0
Holly	1988	163	25	·	Low	0
Way Lake	1992	130	12	·	Low	1
Taylor Run	·	34	33	·	Low	1
Andy	·	·	35	·	Low	0
Starpointe	1940	283	25	·	Low	0
Lovelass	1919	90	20	·	High	11
Silver Lake	1923	·	10	·	Low	1
Nabbys Lake	·	·	16	·	Low	·
Howell Pond	·	·	12	·	Low	5
Hetzell Pond	·	·	8	·	Low	1
Lake Fernwood	·	·	8	·	Low	1
Barnes	·	·	9	·	Low	0
Lake Clemo	1934	·	7	·	Low	1
Hartwig	1988	62	17	·	Low	1
Bear Pond	·	·	15	·	Low	2
Laurel Wood	·	·	25	·	Low	2
Thorn Run	1981	41	22	·	Low	2
Westinghouse Electric	·	66	24	·	Low	1
Hutchinson Fresh Water	·	770	65	·	Low	0
Mannitto	·	50	18	·	Low	0
North Low Dissolved Solids Imp	1974	39	32	·	Significant	0
South Low Dissolved Solids Imp	1974	35	32	·	Significant	0
West Surge Pond	1974	40	27	·	Significant	0
Gable Park Woods	·	·	10	·	High	0
Sterling Drug	·	·	19	·	Low	0
Manor Creek Farms	·	·	18	·	Significant	2
Basin No 2	1992	·	13	·	Low	0
Hart	·	140	19	·	Significant	1
Orchard Course No. 2 Impoundment	1994	29	16	·	Low	1
Foster Pond	·	22	11	·	Low	0
Homer City Sed/Surge Pond	1993	·	25	·	Low	0
Realty Engineering Developers	·	·	7	·	Low	0
Encke	1994	27	46	·	Low	0
Breckenridge Detention	·	·	49	·	Significant	0
Hanger Service Road Det Basin	1992	·	28	·	Low	1
Taxiway "E" Detention Basin	1996	·	84	·	Significant	2
Trough Creek Reservoir	·	31	25	·	Low	1
Scotch Valley	1998	16	17	·	Significant	0
Cooks Pond	1997	170	15	·	High	1
Cambria Slurry Pond #4	·	·	178	·	High	0
Clear Spring Lake	1977	·	20	·	Undetermined	0
University Park Airport Pond 1a	1995	·	24	·	High	0
Somerset Lakes Basin No 2	1991	2	12	·	Significant	0
Herr Foods Storage Lagoon	1996	33	15	·	High	·
Locust Ridge Hunting Club	1965	42	22	·	Significant	0
Klingerman	·	19	32	·	Significant	0
Van Meter	·	40	33	·	Significant	1
Labelle Slurry Pond No 2	·	1,680	80	·	Significant	94
Bailey Sediment Pond No 1	·	21	32	·	High	0
Bailey Sediment Pond No 2	·	10	39	·	High	0
Weisner Hollow Slurry	·	·	192	·	High	0
Moosic Lakes	·	86	12	·	Significant	1
Oakford Glen	·	4	22	·	Significant	3
Woods Edge - Pond A	·	13	11	·	Low	0
Bowmans Marsh	·	9	10	·	Low	2
Locust Lake	·	44	12	·	High	0
Renaissance Regional Basin	·	·	15	·	Significant	0
Newport Plaza	·	·	20	·	High	0
Sprint Lake	·	44	11	·	Low	0
Deer Lake	·	55	7	·	Significant	1
Nick Pond	1996	75	10	·	Significant	1
Polk Pond	1996	80	11	·	Low	0
Lake Verex	1969	·	16	·	Low	0
Ft Charles Young	·	·	75	·	Low	1
Weaver Lake	1961	23	25	·	High	1
Kinsley Detention Basin	1998	·	15	·	Significant	0
Sunny Brook Estates # 1	1999	·	14	·	Significant	0
Yingst	1999	19	16	·	Significant	1
Schmunk	·	·	25	·	Low	0
Laspina Lane	1952	5	21	·	Low	1
Bailey No 1 South Saddle Dike	2004	13,687	55	·	Low	0
Kelly Farm	·	·	30	·	Significant	0
Seven Fields Regional Sw Det	1999	·	14	·	Significant	1
Holtwood Ses Ash Basin No 2	2000	680	57	·	High	0
Erie Pool #9 Dam	1968	180	15	11,389	Low	11
Clark	1966	40	16	·	Low	0
Jacobs Creek	1999	·	10	·	Significant	1
Emerald No. 1 Sed Pond 11	·	6	25	·	High	0
Wharton Boulevard Stormwater	1999	·	21	·	High	2
Longstown Village	1998	3	16	·	Significant	0
Rock Airport	·	9	11	·	Significant	0
Pine Hollow Detention	1999	·	22	·	Significant	0
Glencannon Pond	·	7	24	·	Significant	0
Richland Crossing Detention	1999	·	9	·	Significant	0
University Park Airport Pond 4a	1998	45	29	·	Significant	0
Cedar Crest Boulevard	1998	·	7	·	High	1
Basin 2	1998	·	10	·	High	1
Basin 1	1998	·	13	·	High	1
Rickard	·	·	8	·	Low	1
Walden Woods	2000	·	17	·	High	0
Duncan Ave West Flood Control	·	·	34	·	Significant	0
Madison Heights	2005	34	12	·	Low	1
Emerald No. 2 Main Valley Eastern	·	·	270	·	High	0
Emerald No.2 Sed Pond 1	·	3	18	·	High	0
Susquehanna Woods Lower	2005	1	14	·	High	0
Great Stream Commons Upper	2001	3	17	·	Significant	0
Great Stream Commons Lower	2001	14	24	·	Low	0
Maple Creek #3 Slurry Pond #2	·	2,965	83	·	High	0
Metroplex	1999	·	15	·	Low	5
Brook Crossing Detention	·	·	11	·	Significant	0
Upper West Deer Lake	·	27	24	·	High	0
Faulkner Brook (Sgl #299)	·	97	14	·	Low	1
Wolf Swamp Run	·	104	14	·	Low	1
Cold Storage	·	7	11	·	Significant	1
Sgl #252 Road A	·	68	7	·	Low	0
Lake Placida	1910	11	6	·	High	0
Sgl #252 Road B	·	33	9	·	Low	0
Wildcat, Sgl #56	1973	75	7	·	Low	0
Elk Lick Scout Reservation	·	13	13	·	Significant	1
Travis Pond	·	76	5	·	Significant	1
Lower West Deer Lake	·	17	16	·	High	1
Lake Ridge Estates Detention	2002	9	17	·	Significant	1
Lindenmere	1935	13	12	·	Significant	0
Buhl Park	1919	56	14	·	High	0
Stoyers	·	6	8	·	Significant	3
Marshall Lake	·	·	14	·	Low	8
Luzerne Coal Co Wetland	·	5	32	·	Low	0
Middle West Deer	·	20	16	·	High	1
Heishmans Mill	1815	80	10	·	Low	310
Eisenhart Mill	1919	52	8	·	Low	402
Pa-106	1978	162	12	·	Low	2
Woodpecker Lake	·	188	8	·	Low	1
Shenango Lakes Lower	·	110	20	·	Low	1
Creek	·	95	15	·	Low	4
Lake Moc-A-Tek	·	64	10	·	Low	2
Arthur	·	68	7	·	Low	1
Gregory Pond	1922	61	8	·	Low	14
Sunset Lake	·	52	12	·	Low	3
Elder	·	104	37	·	Low	1
Pine Crest Lake	·	61	8	·	Low	1
Waynewood	·	230	9	·	Low	3
Chain	·	1,197	20	·	Low	1,360
Swimming	·	69	12	·	Low	0
Springwater Lake	2009	8	10	·	High	0
Pa-107	·	161	12	·	Significant	·
Lake Macleod	·	57	30	·	Significant	1
Cherry Run No 1	1964	44	18	·	Low	1
Cherry Run No 2	1964	60	18	·	Low	1
Kubalak	·	26	26	·	Significant	·
Cold Springs Park	·	6	30	·	Low	0
Walker Farm Lagoon	2002	119	26	·	High	0
West 17th Street Detention	2001	·	13	·	Significant	1
Lake Tahoe	1950	·	20	·	Low	0
Emerald No. 1 Back Valley Western	·	·	90	·	High	0
Emerald No. 2 Back Valley Western	·	·	90	·	High	0
Cumberland No. 2 Sediment Pond.	2003	7	12	·	Significant	0
Jewell Pond	·	·	15	·	Significant	0
Hughes Hollow Slurry Impoundment	·	3,548	245	·	High	0
Rastoka	·	·	18	·	Significant	0
Sedimentation Pond "L-1"	1992	17	15	·	Low	0
El-Do Lake	·	39	13	·	High	0
Pleasant Valley Estates	2009	30	14	·	High	0
Queen Lane Raw Water Basin	1900	500	50	·	High	·
Belmont Raw Water Basin	1901	145	30	·	High	·
Baxter Raw Water Basin	1916	·	21	·	Low	·
First Pond	·	340	10	·	High	2
Conashaugh Lake	1969	87	14	·	Significant	0
Upper Birchwood Lake	·	153	23	·	High	1
East Birchwood Lake	2006	224	11	·	High	0
Moon Lake	·	34	12	·	High	3
Stump Pond	·	25	7	·	Significant	0
Lake Marge	·	75	30	·	High	0
Culbertson	·	·	12	·	Low	0
Mine No 84 - Pond 6 West Dike	·	5,283	26	·	High	0
Berlin Road Detention Basin	2003	·	11	·	High	0
Patterson	1825	380	14	60,000	Low	1,981
Little Shenango Pa 487b	1973	0	0	0	Significant	0
Shillington Memorial Park	1936	·	9	·	Significant	0
Cherry Farm Basin #1	2004	·	8	·	Significant	1
Area 3/4 Lower Sed Pond	2004	12	35	·	Low	1
Myers	1938	6	12	·	Significant	0
Barnett	·	60	26	·	High	0
Mountaintop Lake #2	1993	524	12	·	High	1
Lakeview Pond	1975	34	7	·	Significant	0
Clarion U.-Venango Campus West End	·	2	15	·	High	1
Sweetwater Lake	1983	8	8	·	High	·
Mican Pond	1932	28	8	·	Significant	1
Shawnee Pond	2008	16	11	·	Significant	2
Forest Lakes No. 2	·	25	15	·	Significant	1
Mcdowell Detention Basin	2004	·	11	·	High	0
Thomas	1982	3	10	·	Significant	1
Bailey Mine Area No. 3 Slurry	2014	20,974	337	·	High	0
Forest Lakes No. 1	·	18	14	·	Significant	1
Leopard Lake	·	35	11	·	High	2
Bedford Co. Sportsmen's Club Lake	1955	90	29	·	Significant	0
Brinton Lake	1900	15	15	·	High	2
Dormoy Lake	1930	·	20	·	Undetermined	0
Crossing No 5	2005	·	13	·	Significant	0
Rudy Pond	2005	8	10	·	Significant	1
Verga Pond	·	11	8	·	Significant	0
Lake Bonin	1972	235	25	·	High	0
Camp Trees	·	13	17	·	Significant	0
Walden Pond	·	10	18	·	Significant	0
Lakevue Estates	·	·	15	·	Significant	0
Chester Co. Prison Storage Lagoon	·	·	34	·	Significant	0
Washburn Lake	1955	36	18	·	Significant	0
Manada Golf Club Pond	·	12	14	·	Significant	1
Paradise Lake No. 1	1973	2	10	·	Significant	0
Paradise Lake No. 2	1973	4	12	·	Significant	0
Whitetail C	·	·	23	·	Significant	0
Cumberland No. 2 Slurry Pond	·	·	370	·	High	0
Blacksville #1 Freshwater Imp	1974	109	20	·	Significant	1
Trostle Pond	·	·	15	·	Significant	0
Looney Lake	1952	12	40	·	Significant	1
Cresswell Lower	2002	15	15	·	Significant	0
Cresswell Upper	2002	15	5	·	Significant	0
Hart	1978	35	22	·	Low	0
Whipporwill	·	8	11	·	Significant	0
Gillespies Pond	·	70	10	·	Significant	2
Malvern Preparatory Lower	1923	15	15	·	Significant	0
Lake Adventure	1978	120	16	·	High	0
Zelina	1974	95	15	·	Significant	1
Leonard George	2001	49	50	·	Low	0
Big Boulder Lake B	1957	920	19	·	High	2
Hershey Mill	1748	14	14	·	Significant	2
Lake Di Cio	1953	20	15	·	Significant	0
Lyman Run	2007	476	53	·	High	18
Orchard Hill	1965	3	23	·	Significant	0
Ski Roundtop	·	32	20	·	Significant	1
Lakeland Country Estates Green Lake	·	69	25	·	High	0
Bradys Lake	2007	1,782	19	·	High	7
Exton Lake	·	·	14	·	Significant	0
Robert Christman	·	16	13	·	High	1
Deerfield Lake	1971	90	12	·	High	1
Lincoln Avenue Detention Basin	2007	·	13	·	High	0
Penallen	1982	·	12	·	Significant	0
Upper Southside Sport	1979	·	14	·	Significant	0
Klinche Pond	·	·	9	·	Low	1
Spring Lake	1919	17	10	·	High	1
Little Blue Saddle	1977	·	15	·	Significant	3
Westtown	1912	43	14	·	Significant	1
Laurel Highlands Baptist Camp	1982	26	24	·	High	1
Toby Creek Impoundment Basin	1940	·	28	·	High	32
Gold Key Lake	·	621	8	·	Significant	1
Townsend	1913	160	13	9,500	Low	3,112
Crossing No 3	·	·	13	·	Significant	0
Lonesome Lake	·	39	24	·	Low	1
Stookey	·	15	10	·	Significant	2
Osborne Lagoon	2012	·	50	·	Significant	0
Bonnice	1969	67	18	·	Significant	0
Rock Hollow Road	1969	37	26	·	Low	0
Lovingood	·	28	30	·	Low	0
Pocono Laurel Lake	·	11	11	·	Significant	0
Bells Lakes	1964	·	26	·	Significant	1
Middle Mang	1977	·	17	·	Low	0
Naylor Middle	·	·	·	·	Significant	0
Naylor Lower	·	10	19	·	Significant	0
Flatbrook Way Lake	·	17	10	·	Low	0
Cumberland No 1 Sed Pond	1985	3	25	·	Significant	0
Mine No 84 - Pond 6 East Dike	·	580	10	·	High	0
Pocono Woodland Lake No 2	·	26	10	·	Significant	0
Pond 22	·	·	1	·	High	·
Bailey Mine Area No. 3 Saddle C	2014	2,736	37	·	High	0
Huggy Bear Lake	·	·	11	·	Significant	1
Bailey Mine Area No. 3 Saddle B	2014	895	27	·	High	0
Bailey No. 5 Sedimentation Pond	·	13	60	·	High	1
Bailey Mine Area No. 3 Saddle D	2014	1,770	32	·	High	0
Bailey Mine Area No. 3 Saddle A	2014	6,584	67	·	High	0
Bailey Mine Area No. 6 Sed Pond	·	4	58	·	High	0
Ramey	·	27	17	·	Low	0
Rapp Run Flood Retarding	2014	·	16	·	High	2
Pine Run Flood Retarding	2014	·	21	·	High	2
Sunrise Lake Dike	1970	208	8	·	Significant	1
Ash Basin No 1	1949	16	22	·	High	0
Four Seasons Lake	·	31	12	·	Significant	1
Bucks Cove	·	55	15	·	Low	0
Bailey No 5 West Saddle	·	13,430	68	·	High	1
Crystal Lake Dam 2	1888	7,442	12	·	High	3
Wood	·	61	10	·	Significant	0
Spring Hill	1970	19	18	·	Significant	0
Rohanna	·	·	14	·	Significant	1
Lewis	·	6	20	·	Significant	0
Crystal Lake Dam 3	1888	7,442	20	·	High	3
Mountain Springs Dike	1919	436	8	·	Undetermined	3
Hobo Ventures	·	6	118	·	Low	0
Brooks Lake	·	53	7	·	Significant	1
Glatco Lake	·	56	20	·	High	0
West Newton Sludge	·	·	99	·	Low	0
Brooks	·	·	14	·	Low	1
Meyers Pond Dam	1967	28	10	1,078	Low	0
Erie Pool K Dam	1971	66	11	330	Low	1
Dutch Run	·	1	8	·	Significant	2
Lakemont Farms No 1	·	12	30	·	Significant	0
Lakemont Farms No 2	·	6	20	·	Significant	0
Ballibay	·	10	10	·	Significant	0
Caputo	·	·	20	·	Significant	2
Wheatstone Detention Basin	·	·	8	·	Significant	2
Shaw Dam	·	·	·	·	Significant	1
Lanpher	1915	470	38	·	High	·
Williams	·	·	10	·	Significant	1
Linden Lake	1955	55	15	·	Significant	0
Bailey No. 8 Sediment Pond	·	44	53	·	High	1
Penn Scenic View Pond	·	26	22	·	High	0
Pittsburgh Cut Flower	·	·	·	·	Significant	·
Bishop	·	·	·	·	Significant	·
Twin Lakes	1936	44	18	3,600	Significant	5
Reynolds Pond	·	170	24	·	Low	0
Simon Pond	·	·	·	·	Significant	0
Brent Road (Sgl 151)	·	·	·	·	Significant	·
Bailey No. 8 Slurry Impoundment	·	12,076	317	·	High	0
Panther Hollow Lake	·	·	·	·	High	·
Ridge Lake	·	300	10	·	Significant	1
Wayne Glen	·	·	14	·	High	1
Monteville	·	·	·	·	Significant	1
Sausman Tailings	·	310	39	·	Significant	0
North Slurry Pond	·	·	100	·	Low	·
South Slurry Pond	·	·	60	·	Low	·
Slurry Pond #2	·	·	40	·	Significant	·
Lehigh Coal & Navigation Co - #14 Plant	·	·	80	·	Significant	·
Reading Anthracite Co - New St. Nicholas Breaker	·	·	100	·	High	·
Pond # 3	·	·	45	·	Significant	·
Sediment Pond In Pit	·	·	45	·	Low	·
Silt Pond	·	·	40	·	Significant	·
Reading Anthracite - Elangowen	·	·	20	·	Low	·
Jeddo Coal Co - Jeddo #8 Prep Plant	·	·	20	·	Low	·
Reading Anthracite - Trevorton	·	·	25	·	High	·
Waste Management & Processors - Wmpi	·	·	20	·	High	·
Premium Fine Coal Cleaning Plant	·	·	20	·	Low	·
Sedimentation Pond No. 8a	·	·	25	·	Low	·
Slurry Pond No. 1	·	·	90	·	Low	·
Mine 33 Sed Pond No. 1	·	·	32	·	Low	·
Butler Hunt Club	1968	2	31	322	High	0
Hidden Valley	1974	66	25	0	Low	0
Schneider 2	1980	18	30	320	Low	0
Lukavick	1969	26	25	250	Low	0
Boldy	1967	58	23	222	Low	0
Resting Waters Gsc	1977	64	14	120	Low	0
George Snyder	1973	44	18	0	Low	0
Bristol Swamp	1976	58	15	350	Low	0
Lake Shawnee	1970	93	25	376	Significant	0
Lee Smith Dam	1964	67	18	288	Low	0
Lawson	1970	99	26	84	Low	0
Donald Amick Pond	1967	60	15	125	Low	0
Agronomy Farm Pond	1967	0	25	2,300	Low	0
Hort Farm Pond- Psu	1966	49	28	10	Low	0
Golden Pond	1968	54	28	360	Low	0
Beaver Swamp	1975	44	12	538	Low	0
Hammond Lakes	1970	100	21	125	Low	0
Mackiewicz	1969	54	14	0	Low	0
Brechbill Dam	1974	123	15	319	Low	0
Collum Pond	1965	34	15	252	High	0
Borg	1984	53	14	20	High	0
Lewis Pond	1971	48	15	0	Low	0
Brown	1972	166	17	170	High	0

Reservoir FAQ

About Pennsylvania dams & reservoirs

Where does the Pennsylvania dam data come from?

The U.S. Army Corps of Engineers National Inventory of Dams (NID) plus state water-resource agencies. Snoflo joins these public records with live USGS streamgauge readings downstream where available. The NID is the canonical federal dam registry.

What does Hazard Potential mean?

USACE classifies every dam by what would happen if it failed: Low (no loss of life expected, minimal economic damage), Significant (no loss of life but economic, environmental, or lifeline damage), High (loss of life expected). It's a downstream-consequence rating, not a likelihood of failure.

What is Normal Storage in acre-feet?

The volume of water the reservoir holds at its normal operating level, measured in acre-feet. One acre-foot is about 325,851 gallons or 1,233 cubic meters — the amount needed to cover one acre to a depth of one foot.

Why are some Pennsylvania dams missing storage or height data?

USACE NID records can have gaps for small or older dams that pre-date federal reporting requirements. Snoflo surfaces whatever the canonical record contains. If a dam you care about has incomplete data, contact the operating agency or USACE for updates.

Can I see live water levels?

Yes — tap any dam name to open its detail page, which pulls live storage data from USGS streamgauges or operating-agency feeds where available. Historical levels and seasonal averages are also shown.

Why does Pennsylvania have so many dams?

The U.S. has over 90,000 dams — most built between 1930 and 1980 during the federal water-development era. Pennsylvania's count reflects a combination of agricultural irrigation needs, flood control, hydropower, and recreation. The "Built by decade" chart above shows the timeline.