**[Martha K. Watt - Hydrologist, GS-12]{.underline}**

1992-2003, Project staff on modeling projects

-   The Toms River project modeled the unconfined Kirkwood-Cohansey
    aquifer system in the NJ Coastal Plain. Ground-water flow and its
    interaction with surface water and the response to withdrawals were
    the focus of the project.

-   A study using an existing model of carbonate rock and valley-fill
    aquifers in Randolph Township, Northern NJ, was used to define
    contributing areas to withdrawal wells under different withdrawal
    conditions. MODFLOW and MODPATH programs were used.

-   Two studies in the Pennsauken Township area were completed. Both
    ground-water flow models examined the Potomac-Raritan-Magothy
    aquifer system.

    1.  One model used particle tracking to define the contributing
        areas for the public and non-community water supply wells.

    2.  Another model of the ground-water flow system and advective
        transport of chromium contaminated ground water was developed.

2003-present, Project chief of the Model Maintenance program

-   Program was started in 1995 to maintains and update ground-water
    flow models that were constructed in the NJ WSC.

-   Newly published models are archived and older archived models are
    updated, checked, and documented. Eighteen models are currently
    archived; 16 of these models are available to the public through our
    website.

-   Checking these models require knowledge of MODFLOW-88, 96, and 2000,
    MFI, and MFI2K. Zonebudget and pre- and post-processing aml's
    written for use in ARC/INFO assist in my data manipulation and
    checking.

-   The model maintenance project also supports project work done within
    the WSC. Existing ground-water flow models are used to provide
    boundary flows for smaller more local models.

-   Assistance on projects using existing models provided experience
    with the GWM module of MODFLOW. GWM was used with the NJ RASA model
    to do optimizations and evaluate different water-supply management
    options.

[Bibliography]{.underline}

Spitz, F.J., Watt, M.K., DePaul, V.T., 2008, Recovery of ground-water
levels and evaluation of water-supply management options, Critical Area
1, East-Central New Jersey: U.S. Geological Survey Scientific
Investigations Report 2007-5193, \_\_\_ p.

Watt, M.K. and Voronin, L.M., 2006, Sources of water to wells in updip
areas of the Wenonah-Mount Laurel aquifer, Gloucester and Camden
Counties, New Jersey, U.S. Geological Survey Scientific Investigations
Report 2005-5250, 34 p.

Pope, D.A. and Watt, M.K., 2005, Use of a ground-water flow model to
delineate contributing areas to the Puchack well field, Pennsauken
Township and vicinity, Camden County, New Jersey: U.S. Geological Survey
Scientific Investigations Report 2004-5101, 47 p.

Pope, D.A. and Watt, M.K., 2004, Simulation of ground-water flow in the
Potomac-Raritan-Magothy aquifer system, Pennsauken Township and
vicinity, New Jersey: U.S. Geological Survey Scientific Investigations
Report 2004-5025, 60 p.

Watt, M.K., Kane, A.C., Charles, E.G., and Storck, D.A., 2002, Hydrology
of the unconfined aquifer system, Rancocas Creek area, Rancocas,
Crosswicks, Assunpink, Blacks, and Crafts Creek Basins, New Jersey,
1996: U.S. Geological Survey Water Resources Investigations Report
2002-4280, 5 plates

Watt, M.K., 2000, A hydrologic primer for New Jersey watershed
management: U.S. Geological Survey Water Resources Investigations Report
2000-4140, 108 p.

Watt, M.K. and Johnson, M.L., 1996, Hydrology of the unconfined aquifer
system, Mullica River Basin, New Jersey, 1991-92: U.S. Geological Survey
Water Resources Investigations Report 94-4234, 6 plates

Watt, M.K., Johnson, M.L., and Lacombe, P.J., 1994, Hydrology of the
unconfined aquifer system, Toms River, Metedeconk River and Kettle Creek
Basins, New Jersey, 1987-90: U.S. Geological Survey Water Resources
Investigations Report 93-4110, 5 plates

Watt, M.K. and Johnson, M.L., 1992, Hydrology of the unconfined aquifer
system, great Egg Harbor River Basin, New Jersey, 1989-90: U.S.
Geological Survey Water Resources Investigations Report 91-4126, 5
plates