Texas Register, Volume 27, Number 5, Pages 657-828, February 1, 2002 Page: 697
657-828 p. ; 28 cm.View a full description of this periodical.
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(3) The [Special attention must be given to the] construc-
tion, disinfection, protection, and testing of a well to be used as a public
water supply source must meet the following conditions.
(A) Before placing the well into service, a public water
system shall furnish [the commission's public drkiking water program
shall be furnished] a copy of the well completion data, which includes
the following items: the Driller's Log (geological log and material set-
ting report); a cementing certificate; the results of a 36-hour pump test;
the results of the microbiological and chemical analyses required by
subparagraphs (F) and (G) of this paragraph; a copy of the Sanitary
Control Easement; and an original or legible copy of a United States
Geological Survey 7.5-minute topographic quadrangle showing the ac-
curate well location to the executive director. All the documents listed
in this paragraph must be approved by the executive director before fi-
nal approval is granted for the use of the well.
(B) (No change.)
(C) The space between the casing and drill hole shall
be sealed by using enough cement under pressure to completely fill
and seal the annular space between the casing and the drill hole. The
well casing shall be cemented in this manner from the top of the shal-
lowest formation to be developed to the earth's surface. The driller
shall [will] utilize a pressure cementation method in accordance with
the AWWA Standard for Water Wells (A100-97), Appendix C: Sec-
tion C.3 (Positive Displacement Exterior Method); Section C.4 (Inte-
rior Method Without Plug); Section C.5 (Positive Placement, Interior
Method, Drillable Plug); Section C.6 (Placement Through Float Shoe
Attached to Bottom of Casing). Cementation methods other than those
listed in this subparagraph may be used on a site-specific basis with the
prior written approval of the executive director [must be approved by
the executive director prior to the- construction of thi wel]. A cement
bonding log, as well as any other documentation deemed necessary,
may be required by the executive director to assure complete sealing of
the annular space.
(D) - (F) (No change.)
(G) A complete physical and chemical analysis of the
water produced from a new well shall be made after 36 hours of con-
tinuous pumping at the design withdrawal rate. Shorter pump test pe-
riods can be accepted for large capacity wells producing from areas of
known groundwater production and quality so as to prevent wasting
of water. Samples must be submitted to a certified [the Texas Depart-
ment of Health approved] laboratory for chemical analyses. Tentative
approval may be given on the basis of tests performed by in-plant or
private laboratories but final acceptance by the commission shall be
on the basis of results from the certified [Texas Department of Health]
laboratory. Appropriate treatment shall be provided if the analyses re-
veal that the water from the well fails to meet the water quality criteria
as prescribed by the drinking water standards. These criteria include
turbidity, color and threshold odor limitations, and excessive hydrogen
sulfide, carbon dioxide or other constituents or minerals which make
the water undesirable or unsuited for domestic use. Additional chemi-
cal and microbiological tests may be required after the executive direc-
tor [commission's public drinking water- program] conducts a vulnera-
bility assessment of the well.
(H)- (Q) (No change.)
(4) (No change.)
(d) Springs and other water sources.
(1) (No change.)
(2) Before placing the spring or similar source into service,
completion data similar to that required by subsection (c)(3)(A) of thissection must be submitted to the executive director [cmmission2's pub-
lie drinking water program] for review and approval to the Texas Nat-
ural Resource Conservation Commission, Water Supply Division, MC
153, P.O. Box 13087, Austin, Texas 78711-3987.
(3) - (4) (No change.)
(e) Surface water sources and development.
(1) To determine the degree of pollution from all sources
within the watershed, an evaluation shall be made of the [proposed]
surface water source [impoundment or flowing supply] in the area of di-
version and its tributary streams. The area where surface water sources
are diverted for drinking water use shall be evaluated and protected
from sources of contamination.
(A) - (F) (No change.)
(2) Intakes shall be located and constructed in a manner
which will secure raw water of the best quality available from the
source.
(A) - (C) (No change.)
(D) Commission staff shall make an on-site evaluation
of any proposed raw water intake location. The evaluation must be
requested prior to final design and must be supported by preliminary
design drawings. Once the final intake location has been selected, the
executive director [commission's public drin-king water program] shall
be furnished with an original or legible copy of a United States Geolog-
ical Survey 7.5-minute topographic quadrangle showing the accurate
intake location.
(E) - (F) (No change.)
(3) (No change.)
290.42. Water Treatment.
(a) (No change.)
(b) Groundwater [Groundwaters].
(1) - (4) (No change.)
(5) All plant piping shall be constructed to minimize leak-
age.
(6) All groundwater systems shall provide sampling taps
for raw water, treated water, and at a point representing water entering
the distribution system at every entry point.
(c) Springs and other water sources.
(1) - (3) (No change.)
(4) All plant piping shall be constructed to minimize leak-
age. No cross-connection or interconnection shall be permitted to exist
between a conduit carrying potable water and another conduit carrying
raw water or water in a prior stage of treatment.
(5) All systems using springs and other water sources shall
provide sampling taps for raw water, treated water, and at a point rep-
resenting water entering the distribution system at every entry point.
(d) Surface water.
(1) - (2) (No change.)
(3) [All plant piping shall be constructed so as to e thor-
oughly tight against leakage-] Return of the decanted water or sludge
to the raw water shall be adequately controlled so that there will be a
minimum of interference with the treatment process. Any discharge of
wastewater shall be in accordance with all applicable state and federal
[the appropriate] statutes and regulations including Chapter 305 of thisPROPOSED RULES February 1, 2002 27 TexReg 697
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Texas. Secretary of State. Texas Register, Volume 27, Number 5, Pages 657-828, February 1, 2002, periodical, February 1, 2002; Austin, Texas. (https://texashistory.unt.edu/ark:/67531/metapth113988/m1/39/: accessed May 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.