gps for drinking water i

8/9/2019 GPS for Drinking Water I

http://slidepdf.com/reader/full/gps-for-drinking-water-i 1/5

U U s sii n n g g t t h hee GGl l o o b b a al l P P o o s sii t tii o o n nii n n g g SS y y s s t tee m m f f o o r r t t h hee

D D r rii n n k kii n n g g W W a a t tee r r SS o ouu r r c cee A A s s s see s s s s m mee n n t t

P P r r o o t tee c c t tii o o n n P P r r o o g g r r a a m m

P P a a r r t t I I — — I I n n t t r r o o d d uu c c t tii o o n n

Curriculum developed by theInformation Center for the Environment

University of California Davis

for the California Department of Health Services

August 2000



This page intentionally left blank



U SING THE G LOBAL POSITIONING SYSTEM P ART I—I NTRODUCTION

Drinking Water Source Assessment and Protection Program Page 1

I NTRODUCTION

The Drinking Water Source Assessment and Protection (DWSAP) Program is California's portion of the federally mandated Source Water Assessment Program. As the first step in the

development of a complete protection program, California's Department of Health Services(DHS) must evaluate all public drinking water sources for their vulnerability to

contamination.

One of the most important components is the process of updating the source locations in

DHS's database. Knowing the precise location of each source allows a more accurate

estimate of how close it is to any neighboring activities that are potentially contaminating.

Accurate source locations are also critical to DHS's ability to perform complex spatialanalysis, meet legislative mandates, and properly manage the state's drinking water

resources.

The locations of many sources are known reasonably well, but a large percentage of the more

than 16,000 active sources in California are poorly located. Instead of spending a largeamount of money and effort on a separate program, the DHS has decided to integrate the

recording of source locations into the routine, day-to-day operations of the field personnel.

When DHS or LPA field engineers visit a source whose location needs to be updated, theywill spend a little extra time to record the source's position, using the Global Positioning

System (GPS).

The federal requirement for source locational accuracy is that the latitude and longitude on

record for a drinking-water source must identify a point within 25 meters of the actuallocation. Using GPS to establish locations will ensure that the locational data is well within

these requirements.

OUTLINE OF THE MANUAL

The Information Center for the Environment (ICE) at the University of California Davis hasdesigned a set of standard procedures and an application, the GPS Data Management System

(DMS), to capture accurate source locations and update DHS's database with these locations.ICE is training DHS employees in the operation of the DMS software. This manual is

intended to supplement the training and serve as a later reference.

The training manual is being made available online in several parts, so that it may be

downloaded in sections as needed. The hardcopy of this manual will also be divided into thesame sections, but will be held in a single binder.

Part I—Introduction

This document.

Part II—Introduction to GPS

Basic principles of the Global Positioning System, including how it works, common

applications, factors affecting accuracy, and an introduction to data dictionaries.



P ART I—I NTRODUCTION U SING THE G LOBAL POSITIONING SYSTEM

Page 2 Drinking Water Source Assessment and Protection Program

Part III—Getting Acquainted with the GeoExplorer II

Overview of using the GeoExplorer II handheld GPS receiver. Includes hands-on exercises

using buttons and menus, and a practice data-collection session. There is also an overview ofthe structure of the data dictionary designed for the DWSAP Program.

Part IV - The GPS Data Management System

Detailed instructions for installing, using, and supporting the GPS Data Management System

software.

Appendices

A. GPS Data Management System Checklist

B. Field Data Collection Guide

C. What is Declination?

D. Dictionary of terms and acronyms

E. Program Contacts



U SING THE G LOBAL POSITIONING SYSTEM P ART I—I NTRODUCTION

Drinking Water Source Assessment and Protection Program Page 3

This page intentionally left blank

gps for drinking water i

Documents