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Important Data may be provisional - learn more

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1958-10-15 2018-10-09
Inorganics, Major, Metals Water-quality 1958-10-15 1972-06-01
Inorganics, Major, Non-metals Water-quality 1958-10-15 1972-06-01
Inorganics, Minor, metals Water-quality 1958-10-15 1971-10-01
Nutrient Water-quality 1958-10-15 1972-12-06
Organics, other Water-quality 2018-10-09 2018-10-09
Organics, pesticide Water-quality 2018-10-09 2018-10-09
Physical Daily Values, Groundwater Levels, Unit Values, Water-quality 1902-10-01 2022-07-06
n/a Peak Measurements 1902-02-28 2021-09-02
n/a Site Visits 1902-09-22 2022-06-21
n/a USGS Annual Water Data Reports Site 2006-01-01 2021-01-01
Water Data for the Nation inventory

Records include flow of Monocacy Creek. Prior to October 1928, non-recording gage at New Street bridge 120 ft downstream at same datum. Oct. 1, 1928, to Sept. 30, 1962, water-stage recorder at site 4,250 ft downstream at datum 2.49 ft lower. Oct. 1, 1963, to Dec. 14, 1975, water-stage recorder at site 40 ft downstream at same datum. Some regulation at low flow stages from power operation station upstream. Francis E. Walter Dam will reduce normal peak flows. The 15-minute precipitation data for this station are temporary and will only be displayed for 120 days. Time series of 1-hour or cumulative daily values will NOT be available for retrieval following the 120-day display period. Although the instrumentation is calibrated at least once a year, the temporary classification means that documented routine inspections and other quality assurance measures are not performed that would make the data acceptable for archival, retrieval, or future use in general scientific or interpretive studies.
Metadata Element Location Metadata Metadata Code
Agency
USGS
Site identification number
n/a
Site name
n/a
Site type
ST
DMS latitude n/a
DMS longitude n/a
Decimal latitude n/a
Decimal longitude n/a
Latitude-longitude method
M
Latitude-longitude accuracy
S
Latitude-longitude datum
NAD27
Decimal Latitude-longitude datum NAD83
District
42
State
42
County
077
Country n/a
Land net location description n/a
Name of location map n/a
Scale of location map n/a
Altitude of Gage/land surface n/a
Method altitude determined L
Altitude accuracy n/a
Altitude datum
NGVD29
Subbasin hydrologic unit
02040106
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation n/a
Site honors Daylight Savings Time
n/a
Data reliability
n/a
Data-other GW files n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number n/a

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