The Cross Section, Volume 34, Number 9, September 1988 Page: 1
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Volume 34-No. 9 Publication Number USPS 564-920, Second Class Postage paid at Lub
District collects water samples for pe
ibbock, Texas 79405 Ph. 762-0181
bock, Texas September 1988
sticide analysis
1 .-
it
WATER SAMPLES ANALYZED
Engineer Technician Dan Seale measures the
pH and temperature of a water sample as part -
of the Water District's ground water testing for
the presence of herbicides and pesticides. -
- 4
I r
Mi- a WMembers of the High Plains Un-
derground Water Conservation Dis-
trict No. 1 Technical Division were
very busy during July and August
collecting water samples from wells
to determine if any pesticide and/or
herbicide contamination of the
Ogallala Aquifer has occurred within
the District's 15-county service area
and to establish a baseline for future
comparison of water quality.
Water samples are being collected
from wells located in each county
served by the Water District and
transported to an independent labo-
ratory for analysis. The samples will
be scanned for the presence of 20 of
the most commonly used pesticidesand herbicides from the past two
decades.
Technical Division staff are at-
tempting to collect water samples
from approximately 89 wells scat-
tered throughout the counties within
the Water District based on the ratio
of acreage in the county to the total
acreage within the Water District.
The number of wells sampled in
each county are as follows: Arm-
strong, 1; Bailey, 6; Castro, 9; Coch-
ran, 4; Crosby, 6; Deaf Smith, 6;
Floyd, 9; Hale, 2; Hockley, 9; Lamb,
9; Lubbock, 9; Lynn, 3; Parmer, 9;
Potter, 1; and Randall, 6.
Chemical analyses will check
See HERBICIDE Page FourOgallala water level/water quality report
s now available
A new series of reports containing
detailed information on the quantity
and quality of the ground water
stored in the Ogallala Aquifer have
just been released by the High Plains
Underground Water Conservation
District No. 1.
The reports, Observation Well
Water Level Data and Water Quality
Data From Selected Wells (Historical
and Current) contain actual water
level measurements and water qual-
ity analyses from selected wells
located throughout the High Plains
Water District."The reports contain almost all of
the water level and water quality
records the Water District main-
tains," says Geologist Cindy Gestes,
who authored the reports. "The
reports were compiled to make the
records accessible to anyone who
needs to use them," she says. A
separate report has been prepared
for each of the 15 counties in the
Water District service area.
The format of all the reports
is identical and contains data on
water levels, water quality and
precipitation.Water Levels
A map showing the location of
each observation well measured.
Each well has been assigned a
unique number and is plotted at
the well location on the face of the
map.
*A table of water level records which
lists the identifying well number
followed by yearly measurements
from 1975 to 1988 for each well
measured in the county.
A graph depicting the water level
changes in feet from 1963 to 1988for the county. The graph also in-
cludes the maximum and minimum
water changes, the year they oc-
curred and the overall water level
change.
A table listing by county the num-
ber of observation wells main-
tained in the Water District and the
10, five and one-year average
annual water level changes.
A table listing by county the maxi-
mum and minimum water level
changes in feet for each county and
the year they occurred, along with
See TECHNICAL Page Fourer quality criteria
Safe Drinking Water Act establishes new wati
EDITOR'S NOTE: In June 1986, Congress
amended the Safe Drinking Water Act of
1974, calling for speedier and more
comprehensive regulation of drinking water.
The Environmental Protection Agency (EPA)
was directed to (1) require disinfection of all
public water supplies; (2) require filtration of
all surface water supplies except those
naturally meeting high standards of clarity;
(3) set maximum limits on 83 contaminants
(as compared to the 25 contaminants
previously controlled); (4) ban the use of lead
piping and joints in public water systems; (5)
establish new standards to protect
groundwater, particularly around wellheads
and (6) monitor for the presence of additional
(as yet unregulated) contaminants.
In Texas, the EPA delegated responsibility
to the Texas Department of Health (TDH) to
enforce the Federal Safe Drinking Water Act.
Failure of the state agency to enforce these
rules would result in withholding all federal
tax dollars allocated for water supply and
waste water treatment projects for the stateof Texas. Additionally, the EPA would enforce
the law within the state by using heavy
administrative fines without regard to the
ability of the public water supplier to afford
the expenditures.
The State of Texas, through the TDH, has
required chlorination and filtration of public
surface water supplies since the late 1930s.
Neither filtration or chlorination was required
for ground water used in a public water
system. However, the new law now requires
the public water supply owner to disinfect
ground water.
The TDH performs the chemical analysis for
the 83 known contaminants at state taxpayer
expense. However, if a problem is found, it is
the responsibility of the local public water
supply owner to finance the water treatment
cost needed to bring the system into
compliance. The impact of such a compliance
is examined in this article reprinted from the
TIA Update, the monthly newsletter of the
Trinity (River) Improvement Association in
Irving, Texas - CEM.Since mid-1986, EPA has been
working with the water industry and
environmentalists to develop regula-
tions to implement the new law.
Water utility managers have been
participating in workshops to learn
the impact of the new regulations on
their operations and on their water
U -% the
impact of the new rules will be felt
least by customers of large municipal
water systems (10,000 customers
and above) which comprise about 5
percent of the total U.S. water
treatment plants and serve about 75
percent of the U.S. population. Most
of these depend on surface water as
See LAW Page ThreeNEW DRINKING WATER STANDARDS The
Safe Drinking Water Act of 1974 and its 1986
amendments sets the maximum safety limits on 83
contaminants which may be found in the nation's
drinking water supplies. The Texas Department of
Health conducts statewide analyses of water from
public water supply systems. If problems are found,
the Texas Department of Health advises local public
water suppliers that they must upgrade their
treatment system to comply with the new drinking
water standards.lt:M*"
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High Plains Underground Water Conservation District No. 1 (Tex.). The Cross Section, Volume 34, Number 9, September 1988, periodical, September 1988; Lubbock, Texas. (https://texashistory.unt.edu/ark:/67531/metapth1533162/m1/1/: accessed June 26, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.