USGS -- Water Resources of the United States

Explanation of symbols on the state map.

Network wells depicted on the Montgomery County, MD location map
Note: Color shading in the table below indicates multiple wells that plot as a single point on the state location map above.
Note: BLS = Water Level in Feet Below Land Surface, RVD = Water Level referenced to a vertical datum

Map Index	Site ID	Site Name	Most Recent Measurement	Date	Well Depth	Local Aquifer
1	390434076573002	MO Eh 20	13.6 BLS	10/26/2009	102.9	Loch Raven Schist
2	390533077125201	MO De 52	15.88 BLS	7/21/2009	43.23	Upper Pelitic Schist Of Wissahickon Formation
3	390538077195701	MO Dd 28	-0.14 BLS	7/20/2009	200.29	Ijamsville Formation-marburg Schist,undifferentiated
4	390606077022201	MO Dg 34	8.33 BLS	7/21/2009	45.13	Kensington Quartz Diorite
5	390743077160601	MO Dd 27	32.85 BLS	7/21/2009	76.98	Upper Pelitic Schist Of Wissahickon Formation
6	390906077145601	MO De 51	45.22 BLS	7/21/2009	64.84	Upper Pelitic Schist Of Wissahickon Formation
7	390948077145401	MO De 50	22.34 BLS	7/21/2009	74.13	Upper Pelitic Schist Of Wissahickon Formation
8	390951077162301	MO Dd 26	25.76 BLS	7/21/2009	65.38	Upper Pelitic Schist Of Wissahickon Formation
9	391004077132601	MO Ce 26	34.63 BLS	7/21/2009	59.77	Upper Pelitic Schist Of Wissahickon Formation
10	391102077101901	MO Ce 24	16.55 BLS	7/21/2009	68.83	Upper Pelitic Schist Of Wissahickon Formation
11	391114077114201	MO Ce 22	23.73 BLS	7/21/2009	44.93	Upper Pelitic Schist Of Wissahickon Formation
12	391119077134601	MO Ce 25	13.5 BLS	7/21/2009	44.83	Upper Pelitic Schist Of Wissahickon Formation
13	391138077110101	MO Ce 23	35.7 BLS	7/21/2009	57.78	Upper Pelitic Schist Of Wissahickon Formation
14	391142077280601	MO Cb 26	-5.99 BLS	11/19/2009	885
15	391314077224201	MO Cc 14	32.46 BLS	11/19/2009	46	Ijamsville Formation