Loudoun county water monitoring well application

Summary Statement:

This metadata summary applies exclusively to the data as it appears in this Loudoun County intranet/internet mapping application. To see the fully FGDC compliant version of this metadata click here.

This layer identifies only the Water Wells that have been identified and assigned a unique SITE-ID number. Within the Water Wells, the majority are individual potable water wells. Information for wells comes primarily from State Groundwater Well Completion (GW2) forms completed by well drilling contractors and varies in accuracy and completeness.

It is a sub-set of the water wells and pollution sources data.

This Water Well layer was created in March 2010 to provide an easily accessiable spatial database of water wells only. It also provides additional attribute information on Status, Depth, etc.

The original water well & pollution source layer was developed in 1988 by the County’s Environmental Health Department. Records were entered into a database from 40 years of historical paper files, which exhibited a wide range of completeness and accuracy. This was an on-going process until early 1996 at which time the layer was no longer maintained. In late 2000, the Department of Building and Development began a process of updating the layer by entering data from the permit files, which had accumulated since 1996.

Supplemental Information:

The unique SITE ID number is composed of the four-letter ID-CODE (what the item is), the four-digit year of completion, and a four digit sequential cataloging number.

Data are stored in the corporate ArcSDE Geodatabase as a point feature class. The coordinate system is Virginia State Plane (North), Zone 4501, datum NAD83 HARN.

Maintenance and Update Frequency:

Completeness Report:

Features may have been eliminated or generalized due to scale and intended use. To assist Loudoun County, Virginia in the maintenance of the data, please provide any information concerning discovered errors, omissions, or other discrepancies found in the data.

This data is incomplete. Wells may exist which are not yet displayed here. It is strongly recommended that onsite field review and other file searches be conducted prior to making any decisions pertaining to this data.

Well Attributes

WE_SITE_ID: A unique alphanumeric identifier for each well or pollution source. Composed of the four-letter ID-CODE (what the item is), the four-digit year of completion, and a four digit sequential cataloging number.

WE_OLD_ID: Same as the SITE_ID except it uses a two-digit year of completion or date of discovery from field verification identifier.

Code Definition
WWCO = Community well WWCS = Community spring WWDH = Dry well WWDU = Dug well WWHP = Heat pump well WWID = Industrial well WWII = WWIN = Individual well WWIR = Irrigation well WWMN = Monitor well WWNC = Non-community well WWOB = Observation well WWQM = Water quality monitoring well WWSP = Spring WWTS = Test well WWUN = Unknown well