Current through September 21, 2024
(a) 2018 TSS, parts
1.1-1.1.1(d), engineers report, general information; 1.1.2-1.1.2(c), engineers
report, extent of water works system; 1.1.4-1.1.4(c), engineers report, soil,
groundwater conditions, and foundation problems; 1.1.5-1.1.5(f), engineers
report, water use data; 1.1.6-1.1.6(b), engineers report, flow requirements;
1.1.7-1.1.7.1(f), engineers report, sources of water supply, surface water
sources; 1.1.7.2-1.1.7.2(g), engineers report, sources of water supply,
groundwater sources; 1.1.8, engineers report, proposed treatment processes;
1.1.9, engineers report, sewerage system available; 1.1.10, engineers report,
waste disposal; 1.1.15-1.1.15(d), engineers report, pumping facilities;
1.1.16-1.1.16(c), engineers report, storage; and 1.1.17-1.1.17(d), engineers
report, security, contingency planning, and emergency preparedness; are herein
incorporated by reference.
(b) An
engineering design report shall be submitted with each application and shall
include the following required elements:
(i)
The information required in paragraph (a) of this Section;
(ii) A description by narrative, analyses,
and calculations of the project purpose and intent in order to support the
project plans and specifications;
(iii) A description of known or suspected
problems, needs, or requirements, and the reasoning used to arrive at the
proposed solution;
(iv) An
identification of problems and solutions related to but not limited to the
following:
(A) Water quantity and
quality;
(B) Compliance with the
Safe Drinking Water Act, 42
U.S.C. §
300f et seq.; and
(C) Operational requirements, redundancy,
maintenance, and reliability.
(v) A determination of the degree of hazard
of all known or anticipated water service connections to be connected to the
proposed project. A hazard classification shall be identified for each
connection and recommended mitigation measures shall be described for each
hazard.
(c) The
engineering design report for all new water distribution system extensions
shall include the following required elements:
(i) The information required in paragraph (a)
of this Section;
(ii) A description
of the service area including scaled vicinity plan map(s) of the project with
regard to adjacent and proposed development, elevations, and topographic
features; and
(iii) Current and
projected system water use data and flow requirements to include maximum hourly
demand and per capita maximum daily flows;
(iv) Information on fire protection and fire
flow capabilities of the proposed system.
(d) The engineering design report for all
treatment facilities shall include the following required elements:
(i) The information required in paragraph (a)
of this Section;
(ii) A description
of the facility site and location, including a scaled site plan, and:
(A) Present and projected facility property
boundaries;
(B) Flood protection
indicating predicted elevation of 25- and 100-year flood stages;
(C) Present and proposed access for the
purpose of operation, maintenance, and compliance inspection;
(D) Distances from:
(I) Current habitation;
(II) The closest major treated water
transmission line;
(III) The
closest treated water storage facility; and
(IV) The water source.
(E) Fencing and security;
(F) Topographic features and contours with
indicated datum; and
(G) Soil and
subsurface geological characteristics, including a soils investigation report
of the proposed site suitable for structural design of the proposed
facilities.
(iii) A
description of the service area, including scaled vicinity plan map(s) of the
project with regard to adjacent and proposed development, elevations, and
topographic features;
(iv) A
detailed description of the recycle flows and procedures for reclamation of
recycle streams; and
(v) A detailed
description of disposal techniques for settled solids, including a description
of the ultimate disposal of sludge.
(e) Engineering design reports for new
surface water sources shall include the following required elements:
(i) The information required in paragraph (a)
of this Section;
(ii) A description
of water quantity available during average and driest years of record that
contains details of:
(A) Any diversion
records; and
(B) Diversion dams,
impoundments, or reservoirs that may impact design considerations or long-term
water availability.
(iii)
A tabulation of water quality data that describes the biological, radiological,
and chemical water quality sufficient to determine necessary treatment
processes that:
(A) For surface water source
testing, include at least one sampling event during spring runoff and at least
one sampling event during late summer or early fall low flow; and
(B) Includes data that are sufficient for the
Division to determine that the processes safely and reliably comply with water
quality standards required by 40 CFR Part 141.
(f) Engineering design reports for new
groundwater sources shall include:
(i) The
information required in paragraph (a) of this Section;
(ii) A description of the geology of the
aquifer(s) and overlying strata;
(iii) Tabulated water quality testing data
for biological, radiological, and chemical water quality sufficient to
determine necessary treatment processes and sufficient for the Administrator to
determine that the processes safely and reliably meet water quality standards
required by 40 CFR Part 141;
(iv)
If known, a summary of the likely drilling and completion challenges that will
be faced, including a description of the engineering design, management,
monitoring, and drilling and completion practices that will be used to
successfully construct the well in accordance with this Chapter; and
(v) For wells that will be drilled through
multiple aquifers, applicants shall request a pre-application meeting with the
applicable Division district engineer to discuss:
(A) The boring advancement, well sealing,
well development, and methods used to determine the adequacy of the well seal;
and
(B) The methods that will be
used to overcome lost circulation, bore instability, and deviations from
vertical alignment.
(g) Engineering design reports for conversion
of an existing well into a public water supply well shall include the following
required elements:
(i) The information
required in paragraph (a) of this Section;
(ii) The information required in paragraph
(f) of this Section;
(iii) The
submission of the State Engineer's Office (SEO) Statement of Completion and
Description of Well; and
(iv) A
video log of the well inspection accompanied by a written description of the
location, shape, and estimated size of any holes, breaches, corroded areas in
the casing, if any, that includes:
(A) If any
damage to the casing is found, a description of how defective areas will be
repaired and if there is a need for additional well bond logging; or
(B) If well bond logging is not recommended,
a description of the technical justification and an alternative means of
certifying the adequacy of the well seal to protect the water source.
(h) Engineering design
reports for new water treatment facilities shall include the following required
elements:
(i) The information required in
paragraph (a) of this Section;
(ii)
A description of all water treatment chemical requirements, including dosage
and feed rates, delivery, handling, and storage;
(iii) A description of automatic operation
and control systems, including basic operation, manual override operation, and
maintenance requirements; and
(iv)
A description of the on-site laboratory facilities and a summary of those tests
to be conducted on-site. If no on-site laboratory is provided, a description of
plant control and water quality testing requirements, and where the testing
will be conducted shall be included.
(i) Engineering design reports for water
treatment facility modifications shall describe:
(i) The information required in paragraph (a)
of this Section;
(ii) The purpose
of the facility modification;
(iii)
All proposed new equipment, tankage, and chemical treatment processes,
including a description of the modification's effect on treatment system
reliability, water quantity and quality; and
(iv) A listing of the new equipment design
criteria and the associated chemicals.
(j) Engineering design reports for water main
upsizing or looping projects shall describe the purpose of the water main
upsizing or looping project and shall include the following required elements:
(i) The information required in paragraph (a)
of this Section;
(ii) Hydraulic
analysis that demonstrates how peak hour, average day, maximum day, and maximum
day plus fire flows, if fire flows are available, will be improved by upsizing;
and
(iii) A table that summarizes
the hydraulic model results.
(k) Engineering design reports for water main
removal and replacements shall describe the purpose of the replacement and
identify the existing main size, material type, and condition, and shall
include the following required elements:
(i)
The information required in paragraph (a) of this Section;
(ii) For any main replacement(s), the
replacement main size, material type, and dimension ratio;
(iii) For projects that consist of main
replacements in multiple discrete locations, an aerial image that shows all
replacement pipeline segments, including new valves, with called-out pipe
diameters and lengths;
(iv) A
description of the protective measures that will be taken at locations where
the new water main will cross a sewer or storm sewer when standard horizontal
and vertical separations cannot be met; and
(v) For projects where asbestos cement may be
encountered, a discussion of the disposal, or abandonment method to be
used.
(l) Engineering
design reports for new water mains shall describe the purpose of the new water
main and shall include the information required in paragraph (a) of this
Section. If the water main will provide service to a new development the
engineering design report shall include the following required elements:
(i) The modeling result from a hydraulic
analysis that demonstrates that the design will meet the requirements of
Section 16(d) (i-ii) of this
Chapter;
(ii) A demonstration that
the hydraulic model was calibrated based on existing fire hydrant test flow
data, when available, or based on modeling; and
(iii) Identification of any impacts the new
fire flow demand will have on finished storage and pumping systems over the
required fire flow duration.
