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Table 1. Sources for data and model parameter values

[ATSDR, Agency for Toxic Substances and Disease Registry; EPANET, a water-distribution system model; NJDHSS, New

Jersey Department of Health and Senior Services; SCADA, supervisory control and data acquisition system;

UWTR, United Water Toms River, Inc.]

Data or Model

Parameter

Source for Data or Model Parameter

Modified During Calibration

 

Comment

Physical Data

Network and pipeline geometry UWTR electronic data files

(Flegal, 1997)

No

Network pipelines range from 2-16-inches in diameter
Test hydrant locations UWTR; ATSDR

No

Horizontal and vertical control of hydrants determined by ATSDR staff by use of global positioning system equipment

Hydraulic and Water-Quality Data

Pressure data from test hydrants ATSDR-supplied pressure data loggers and developed test protocol

No

1-minute sampling data averaged to hourly values for model simulations
Ground-level and elevated storage tank water levels UWTR SCADA output to data file

No

5-minute output; value for each hour of test used for model simulations
Groundwater well production UWTR SCADA output to computer screen and total daily pumping data

No

ATSDR staff recorded well production from screen output during test
High service and booster pump flows UWTR SCADA output to data file

No

15-minute output; average value over each hour of test used for model simulations
Barium data; concentration in groundwater NJDHSS

(NJDHSS, 1999c)

 

No

One-time tap sample at 21 schools on March 28, 1996; point of entry sampled at 4 locations on April 4, 1996 and at 1 location on April 24, 1996; See Figure 8 for details

Model Data

Pipe roughness ("C-Factor") EPANET Users Manual (Rossman, 1994)

No

See Table 2 for details
Pump-characteristic curves UWTR data

Yes

Data obtained in early 1990s
System demand factors UWTR SCADA production data output to computer screen

Yes

Factors derived from instantaneous production data recorded by ATSDR staff during March and August 1998 tests
Nodal demand UWTR metered consumption data

No

Quarterly data for October 1997 - April 1998 by meter location; address matched to model node location

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