Map
Index | Site ID | | Site Name | Most Recent
Measurement | Date | Well
Depth | Local Aquifer |
 1 | 394430077225001 | | AD 808 Adams County Observation Well | 76.71 BLS | 5/10/2008 | 234.0 | Metabasalt |
 2 | 394655080014301 | | GR 118 Greene County Observation Well | 25.10 BLS | 5/10/2008 | 104.0 | Washington Formation |
| 3 | 394755078135001 | | FU 249 Fulton County Observation Well | 47.89 BLS | 5/10/2008 | 122.0 | Catskill Formation |
 4 | 394843079351401 | | FA 17 Fayette County Observation Well | 21.80 BLS | 5/10/2008 | 100.0 | Glenshaw Formation |
| 5 | 395322077365301 | | FR 818 Franklin County Observation Well | 62.95 BLS | 5/10/2008 | 202.0 | Zullinger Formation |
 6 | 395342075102101 | | PH 12 Philadelphia County Observation Well | 11.35 BLS | 5/10/2008 | 100.0 | Magothy-raritan-potomac Aquifer System, Middle Aquifer |
| 7 | 395450075485401 | | CH 10 Chester County Observation Well | 12.22 BLS | 5/10/2008 | 33.5 | Cockeysville Marble |
| 8 | 395512075293701 | | DE 723 Delaware County Observation Well | 6.56 BLS | 5/10/2008 | 300.0 | Felsic Gneiss, Hornblende-bearing |
 9 | 395846077040601 | | AD 146 Adams County Observation Well | 11.46 BLS | 5/10/2008 | 99.5 | Gettysburg Shale |
| 10 | 395920079021501 | | SO 854 Somerset County Observation Well | 22.77 BLS | 5/10/2008 | 121.0 | Allegheny Formation |
| 11 | 400209077183301 | | CU 2 Cumberland County Observation Well | 13.89 BLS | 5/10/2008 | 37.0 | Metarhyolite |
| 12 | 400217078281901 | | BD 150 Bedford County Observation Well | 5.77 BLS | 5/10/2008 | 150.0 | Onondaga Limestone |
 13 | 400233080261301 | | WS 155 Washington County Observation Well | 36.77 BLS | 5/10/2008 | 140.0 | Washington Formation |
| 14 | 400916076492301 | | YO 1147 York County Observation Well | 20.07 BLS | 5/10/2008 | 182.0 | Gettysburg Shale |
| 15 | 401157075032001 | | BK 1020 Bucks County Observation Well | 30.73 BLS | 5/10/2008 | 395.0 | Stockton Formation |
| 16 | 401637076071501 | | LN 1351 Lancaster County Observation Well | 10.43 BLS | 5/10/2008 | 135.0 | Hammer Creek Formation |
| 17 | 401733075171401 | | MG 917 Montgomery County Obsevation Well | 8.47 BLS | 5/10/2008 | 500.0 | Brunswick Formation |
| 18 | 401843078075401 | | HU 301 Huntingdon County Observation Well | 51.96 BLS | 5/10/2008 | 105.0 | Pocono Formation |
| 19 | 402138079031802 | | WE 300 Westmoreland County Observation Well | 14.86 BLS | 5/10/2008 | 110.0 | Clarion Formation |
| 20 | 402207076180801 | | LB 372 Lebanon County Observation Well | 8.36 BLS | 5/10/2008 | 80.0 | Ontelaunee Formation |
| 21 | 402255076422001 | | DA 868 Dauphin County Observation Well | 9.88 BLS | 5/10/2008 | 141.0 | Hamburg Sequence |
| 22 | 402411077374801 | | JU 351 Juniata County Observation Well | 12.18 BLS | 5/10/2008 | 110.0 | Braillier, Harrel Formations Undifferentiated |
| 23 | 402452078271301 | | BA 74 Blair County Observation Well | 9.95 BLS | 5/10/2008 | 150.0 | Brailler Formation |
| 24 | 402615075530501 | | BE 623 Berks County Observation Well | 130.78 BLS | 5/10/2008 | 385.0 | Leithsville Formation |
| 25 | 402643075150501 | | BK 929 Bucks County Observation Well | 40.07 BLS | 5/10/2008 | 116.0 | Brunswick Formation |
| 26 | 402735077100901 | | PE 684 Perry County Observation Well | 10.27 BLS | 5/10/2008 | 150.0 | Trimmers Rock Formation |
| 27 | 403006080252301 | | BV 156 Beaver County Observation Well | 7.99 BLS | 5/9/2008 | 101.0 | Conemaugh Formation |
| 28 | 403429075392401 | | LE 644 Lehigh County Observation Well | 54.04 BLS | 5/10/2008 | 184.0 | Beekmantown Group |
| 29 | 403434078302201 | | CA 459 Cambria County Observation Well | 37.44 BLS | 5/10/2008 | 146.0 | Pottsville Formation |
| 30 | 403734080063001 | | AG 700 Allegheny County Observation Well | 6.10 BLS | 5/10/2008 | 100.0 | Glenshaw Formation |
| 31 | 403939076591001 | | SN 130 Snyder County Observation Well | 18.69 BLS | 5/10/2008 | 100.0 | Irish Valley Member Of Catskill Formation |
| 32 | 404140077354001 | | MF 344 Mifflin County Observation Well | 42.54 BLS | 5/10/2008 | 200.0 | Bellefonte Formation |
| 33 | 404239076362001 | | NU 567 Northumberland County Observation Well | 17.60 BLS | 5/10/2008 | 156.0 | Irish Valley Member Of Catskill Formation |
| 34 | 404556077525101 | | CE 686 Centre County Observation Well | 75.68 BLS | 5/10/2008 | 345.0 | Nittany Formation |
 35 | 404708076070701 | | SC 296 Schuylkill County Observation Well | 48.38 BLS | 5/10/2008 | 242.0 | Mauch Chunk Formation,middle Member |
| 36 | 404745075184001 | | NP 820 Northampton County Observation Well | 37.23 BLS | 5/10/2008 | 218.0 | Martinsburg Shale |
| 37 | 405320078483901 | | IN 919 Indiana County Observation Well | 32.90 BLS | 5/10/2008 | 140.0 | Pottsville Formation |
| 38 | 405344079380201 | | AR 109 Armstrong County Observation Well | 18.52 BLS | 5/10/2008 | 152.5 | Allegheny Formation |
| 39 | 405928077115501 | | UN 51 Union County Observation Well | 36.32 BLS | 5/10/2008 | 115.0 | Reedsville Formation |
| 40 | 410123075425401 | | CB 104 Carbon County Observation Well | 52.25 BLS | 5/10/2008 | 125.0 | Mauch Chunk Formation,lower Member |
| 41 | 410501079524401 | | BT 311 Butler County Observation Well | 2.24 BLS | 5/10/2008 | 89.0 | Kittanning Formation |
| 42 | 410538080280801 | | LA 1201 Lawrence County Observation Well | 16.50 BLS | 5/10/2008 | 150.0 | Connoquenessing Formation |
| 43 | 410627078313601 | | CF 321 Clearfield County Observation Well | 25.73 BLS | 5/10/2008 | 150.0 | Burgoon Member Of Pocono Formation |
| 44 | 410705076334901 | | CO 589 Columbia County Observation Well | 26.27 BLS | 5/10/2008 | 241.0 | Hamilton Group |
| 45 | 410727076402901 | | MT 258 Montour County Observation Well | 28.09 BLS | 5/10/2008 | 203.0 | Hamilton Group |
 46 | 411223075234901 | | MO 190 Monroe County Observation Well | 10.48 BLS | 5/10/2008 | 98.0 | Catskill Formation |
| 47 | 411424077462201 | | CN 1 Clinton County Observation Well | 47.88 BLS | 5/10/2008 | 75.0 | Huntley Mountain Formation |
| 48 | 411734078522101 | | JE 425 Jefferson County Observation Well | 35.60 BLS | 5/10/2008 | 152.0 | Pottsville Formation |
| 49 | 411756076162701 | | LU 294 Luzerne County Observation Well | 32.29 BLS | 5/9/2008 | 167.0 | Catskill Formation |
| 50 | 411833075133601 | | PI 522 Pike County Observation Well | 35.39 BLS | 5/10/2008 | 150.0 | Catskill Formation |
| 51 | 411958079540202 | | VE 57 Venango County Observation Well | 101.47 BLS | 5/9/2008 | 215.0 | Connoquenessing Formation |
| 52 | 412020079133901 | | CR 3 Clarion County Observation Well | 30.49 BLS | 5/10/2008 | 130.0 | Pottsville Formation |
| 53 | 412427076594401 | | LY 112 Lycoming County Observation Well | 101.56 BLS | 5/10/2008 | 200.0 | Catskill Formation |
| 54 | 412458078324601 | | EK 108 Elk County Observation Well | 4.00 BLS | 5/10/2008 | 340.0 | Mississippian, Lower |
| 55 | 412732078034201 | | CM 13 Cameron County Observation Well | 22.59 BLS | 5/10/2008 | 102.0 | Catskill Formation |
| 56 | 412739080104201 | | MR 3306 Mercer County Observation Well | 24.62 BLS | 5/10/2008 | 120.0 | Cuyahoga Group |
| 57 | 412823079030601 | | FO 11 Forest County Observation Well | 8.34 BLS | 5/10/2008 | 110.0 | Allegheny Formation |
| 58 | 412826076083301 | | WY 179 Wyoming County Observation Well | 25.55 BLS | 5/10/2008 | 122.0 | Catskill Formation |
| 59 | 413026076352901 | | SU 34 Sullivan County Observation Well | 27.07 BLS | 5/10/2008 | 50.0 | Catskill Formation |
| 60 | 413346075421301 | | LK 508 Lackawanna County Observation Well | 56.04 BLS | 5/10/2008 | 202.0 | Quaternary System |
| 61 | 413542080245002 | | CW 413 Crawford County Observation Well | 49.32 BLS | 5/10/2008 | 100.0 | Cussewago Formation |
| 62 | 414159079213601 | | WR 50 Warren County Observation Well | 38.49 BLS | 5/10/2008 | 105.0 | Venango Formation |
| 63 | 414330076280501 | | BR 92 Bradford County Observation Well | 8.87 BLS | 5/10/2008 | 115.0 | Lock Haven Formation |
| 64 | 414333075153201 | | WN 64 Wayne County Observation Well | 24.67 BLS | 5/10/2008 | 52.0 | Outwash Deposits |
| 65 | 414509078343401 | | MC 125 McKean County Observation Well | 93.47 BLS | 5/10/2008 | 173.5 | Pottsville Formation |
| 66 | 414513077333701 | | TI 100 Tioga County Observation Well | 30.62 BLS | 5/10/2008 | 78.0 | Catskill Formation |
| 67 | 414640077493801 | | PO 72 Potter County Observation Well | 21.29 BLS | 5/10/2008 | 110.0 | Catskill Formation |
| 68 | 415323077451301 | | SQ 61 Susquehanna County Observation Well | 31.84 BLS | 5/10/2008 | 175.0 | Catskill Formation |
| 69 | 415607080044601 | | ER 82 Erie County Observation Well | 20.60 BLS | 5/10/2008 | 82.0 | Venango Formation |
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