reglab/statecodes huggingface dataset:
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter B - TREATMENT FACILITY DESIGN REQUIREMENTS › Section 217.37 - Disinfection System Power Reliability

Current through Reg. 49, No. 28; July 12, 2024
(a)
				  A disinfection system must include a backup power system capable of providing
				  sufficient power to operate continuously during all power outages in accordance
				  with the requirements of §
										217.36
				  of this title (relating to Emergency Power Requirements), including outages
				  that are longer than outage predicted based on the power reliability
				  determination required in §
										217.36(e)
				  of this title.
(b) A backup power
				  system must automatically restart the disinfection system during a power
				  outage.
(c) A backup power system
				  must meet the requirements of §
										217.36
				  of this title.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter B - TREATMENT FACILITY DESIGN REQUIREMENTS › Section 217.38 - Buffer Zones and Odor Abatement

Current through Reg. 49, No. 28; July 12, 2024
(a)
				  The buffer zone requirements in §
										309.13
				  of this title (relating to Unsuitable Site Characteristics) apply to all
				  treatment units in a wastewater treatment facility.
(b) The engineering report must include the
				  design of any odor abatement measures intended to comply with §309.13(e) -
				  (g) of this title.
(c) An odor
				  abatement measure that is used in lieu of buffer zones is subject to review in
				  accordance with §
										217.7(b)(2)
				  of this title (relating to Types of Plans and Specifications
				  Approvals).
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter B - TREATMENT FACILITY DESIGN REQUIREMENTS › Section 217.39 - Wastewater Treatment Facility Use of Reclaimed Water

Current through Reg. 49, No. 28; July 12, 2024
(a) A wastewater treatment facility must use
				  reclaimed water in place of potable water in all treatment units, for wash down
				  water, and for irrigating the grounds within the boundaries of the wastewater
				  treatment facility.
(b) A
				  wastewater treatment facility must include a meter to measure reclaimed water
				  use in the wastewater treatment facility.
(c) Reclaimed water may only be used after
				  treatment in a secondary treatment process. Untreated or partially treated
				  wastewater may not be used as reclaimed water. A reclaimed water system must
				  provide for screening or filtration, a backup pump with controls, and a
				  pressure-sustaining device such as a hydro-pneumatic tank.
(d) If disinfection is part of the treatment,
				  reclaimed water may only be used after it has been disinfected.
(e) Reclaimed water may be used within the
				  wastewater treatment facility with no further authorization from the executive
				  director if it is used in accordance with this section and §
										210.4(c)
				  of this title (relating to Notification).
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter B - TREATMENT FACILITY DESIGN REQUIREMENTS › Section 217.40 - Signs with Emergency Contact Information

Current through Reg. 49, No. 28; July 12, 2024
A sign must be posted at the entrance of a wastewater
					 treatment facility to provide the wastewater treatment facility name and
					 current 24-hour contact information. The sign must be clearly visible and
					 legible, with block lettering that is at least 1.5 inches
					 tall.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.51 - Applicability

Current through Reg. 49, No. 28; July 12, 2024
This subchapter applies to the design, construction,
					 operation, maintenance, and testing of conventional gravity collection systems,
					 conventional wastewater lift stations, force mains for wastewater transport,
					 and reclaimed water conveyance systems.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.52 - Edwards Aquifer

Current through Reg. 49, No. 28; July 12, 2024
An owner who plans to install a collection system located
					 over the Edwards Aquifer recharge zone, as defined in §
										213.3 of
					 this title (relating to Definitions), must design and install the collection
					 system in accordance with Chapter 213 of this title (relating to Edwards
					 Aquifer), in addition to this subchapter.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.53 - Pipe Design

Current through Reg. 49, No. 28; July 12, 2024
(a) Flow Design
				  Basis. An owner must use the requirements of this section to design a gravity
				  collection system.
(1) A collection system
				  must be designed to transport the peak flow from the service area, plus
				  infiltration and inflow. The design must minimize inflow and infiltration. Flow
				  calculations must be included in the engineering report.
(2) The flow calculations must include the
				  details of the average flow, the flow peaking factor, and the infiltration and
				  inflow.
(3) The flow calculations
				  must include the flow expected in the wastewater treatment facility immediately
				  upon completion of construction and at the end of a 50-year period following
				  construction.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.54 - Criteria for Laying Pipe

Current through Reg. 49, No. 28; July 12, 2024
(a)
				  Pipe Embedment.
(1) A rigid pipe must be laid
				  with bedding, haunching, and initial backfill that will meet the appropriate
				  standards and will support the anticipated load. The bedding classes that are
				  allowed are A, B, or C, as described in American Society for Testing and
				  Materials (ASTM) C 12, American National Standards Institute (ANSI) A 106.2,
				  Water Environment Federation Manual of Practice No. 9, or American Society of
				  Civil Engineers (ASCE) MOP 37.
(2)
				  A flexible pipe must be laid with bedding, haunching, and initial backfill that
				  will meet the appropriate standards and will support the anticipated load. The
				  bedding classes that are allowed are IA, IB, II, or III, as described in ASTM
				  D-2321 or ANSI K65.171.
(3) Debris,
				  large clods, stones that are greater than six inches in diameter, organic
				  matter, and other unstable materials are prohibited as bedding, haunching, or
				  initial backfill.
(4) Backfill must
				  not disturb the alignment of a collection system pipe.
(5) If a fracture, fault zone, cave, or
				  solutional modification to the rock strata that would prevent pipe bedding is
				  encountered during construction, an owner must halt construction until an
				  engineer prepares a written report, which must be submitted with the final
				  engineering report, detailing how construction will accommodate these site
				  conditions.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.55 - Manholes and Related Structures

Current through Reg. 49, No. 28; July 12, 2024
(a)
				  An owner must include manholes in a collection system at:
(1) all points of change in alignment, grade,
				  or nominal diameter;
(2) at all
				  intersections of collection system pipes; and
(3) at the end of all pipes that may be
				  extended at a future date.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.56 - Trenchless Pipe Installation

Current through Reg. 49, No. 28; July 12, 2024
(a)
				  Trenchless technologies that may be used for installation of new collection
				  system pipe include impact moling, pipe ramming, microtunneling, conventional
				  tunneling, bore and jack, and horizontal directional drilling.
(b) Trenchless technologies that may be used
				  for replacement of collection system pipe include pipe bursting, pipe
				  splitting, and pipe jacking.
(c)
				  Trenchless technologies that may be used for lining existing collection system
				  pipes include epoxy spray lining, cured-in-place pipe, and sliplining. These
				  technologies reduce the inside diameter of a pipe.
(d) All other trenchless methods of
				  installing, replacing, or repairing collection system pipe are non-conforming
				  technologies subject to the requirements of §
										217.7(b)
				  of this title (relating to Types of Plans and Specifications
				  Approvals).
(e) A collection system
				  using a trenchless technology must be designed, installed, operated,
				  maintained, and constructed in accordance with American Society for Testing and
				  Materials (ASTM) or American Water Works Association (AWWA) standards with
				  reference to materials used and construction procedures. In the absence of ASTM
				  or AWWA standards, the executive director review may be based upon other
				  recognized standards used by industry engineers.
(f) The engineering report must include the
				  following:
(1) the trenchless
				  method;
(2) the type of
				  pipe;
(3) the type(s) of
				  soil;
(4) the pipe length and
				  diameter;
(5) the pipe
				  slope;
(6) the method for
				  disconnecting and reconnecting lateral and service connections;
(7) the provisions for flow bypass for
				  existing system; and
(8) the pipe
				  standard.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.57 - Testing Requirements for Installation of Gravity Collection System Pipes

Current through Reg. 49, No. 28; July 12, 2024
(a) For a
				  collection system pipe that will transport wastewater by gravity flow, the
				  design must specify an infiltration and exfiltration test or a low-pressure air
				  test. The test must conform to the following requirements:
(1) Low Pressure Air Test.
(A) A low pressure air test must follow the
				  procedures described in American Society for Testing and Materials (ASTM) C
				  828, ASTM C 924, or ASTM F 1417 or other procedure approved in writing by the
				  executive director. The testing times listed in Table C.4. in Figure: 30 TAC
				  §217.57(a)(1)(C) or Equation C.3 in Figure: 30 TAC
				  §217.57(a)(1)(B)(ii) must be used, regardless of the testing
				  procedure.
(B) For sections of
				  collection system pipe with an average inside diameter less than 36 inches, the
				  following procedure applies, unless a pipe is to be tested as required by
				  paragraph (2) of this subsection.
(i) A pipe
				  must be pressurized to 3.5 pounds per square inch (psi) gauge. If groundwater
				  is present, then a pipe must be pressurized to 3.5 psi gauge greater than the
				  pressure exerted by groundwater above the pipe.
(ii)Once the pressure is stabilized, the
				  minimum time allowable for the pressure to drop from 3.5 psi gauge to 2.5 psi
				  gauge is computed from the following equation:
Attached Graphic
(C) Since a K value of
				  less than 1.0 may not be used, the minimum testing time for each pipe diameter
				  is shown in the following table:
Attached Graphic
(D) An owner may stop a test if no
				  pressure loss has occurred during the first 25% of the calculated testing
				  time.
(E) If any pressure loss or
				  leakage has occurred during the first 25% of a testing period, then the test
				  must continue for the entire test duration as outlined above or until failure
				  of the test.
(F) Collection system
				  pipes with a 27 inch or larger average inside diameter may be air tested at
				  each joint instead of following the procedure outlined in this
				  section.
(G) A testing procedure
				  for a pipe with an inside diameter greater than 33 inches must be approved in
				  writing by the executive director.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.58 - Testing Requirements for Manholes

Current through Reg. 49, No. 28; July 12, 2024
(a) All manholes must pass a leakage
				  test.
(b) An owner shall test each
				  manhole, after assembly and before backfilling, for leakage using hydrostatic
				  exfiltration testing, vacuum testing, or any other method approved in writing
				  by the executive director. A manhole must be tested separately and
				  independently from the collection system pipes.
(1) Hydrostatic Testing.
(A) The maximum leakage rate for hydrostatic
				  testing or any alternative test methods is 0.025 gallons per foot diameter per
				  foot of manhole depth per hour.
(B)
				  To perform a hydrostatic test, an owner shall seal all wastewater pipes coming
				  into the manhole with an internal pipe plug, fill the manhole with water, and
				  maintain the test for at least one hour.
(C) A test for concrete manholes may use a
				  24-hour wetting period before testing to allow saturation of the
				  concrete.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.59 - Lift Station Site Requirements

Current through Reg. 49, No. 28; July 12, 2024
(a) Site access.
(1) A lift station must be located in a
				  right-of-way or a permanent easement.
(2) A lift station site must be accessible by
				  truck during all weather conditions, including a 25-year, 24-hour rainfall
				  event.
(3) A road surface used to
				  access a lift station must have a minimum width of 12 feet.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.60 - Lift Station, Wet Well, and Dry Well Designs

Current through Reg. 49, No. 28; July 12, 2024
(a) Pump Controls.
(1) A lift station pump must operate
				  automatically, based on the water level in a wet well. Pump controls must be
				  designed to prevent surcharges in the collection system and must be designed to
				  prevent adverse effects on the operation of the wastewater treatment
				  facility.
(2) The location of a wet
				  well water level mechanism must ensure that the mechanism is unaffected by
				  currents, rags, grease, or other floating materials.
(3) A wet well water level mechanism must be
				  accessible without entering the wet well.
(4) Wet wells with a bubbler system require
				  dual air supplies and dual controls.
(5) Motor control centers must be mounted
				  high enough above grade, but in no case less than 4.0 inches above grade, to
				  prevent water intrusion and corrosion from standing water in the enclosure.
				  Motor control centers must also be protected from the entrance of corrosive
				  gases from wet wells or piping.
(6)
				  Electrical equipment and electrical connections in a wet well or a dry well
				  must meet National Fire Protection Association 70 National Electrical Code®
				  explosion prevention requirements, unless continuous ventilation is
				  provided.
(7) Electronic wet well
				  level control systems must also use a float switch or similar manual
				  backup.
(8) Wet well control
				  settings must be designed to discourage septic conditions in a lift
				  station.
(9) Wet well control
				  settings must be designed to prevent overloading of downstream pipes and
				  treatment units.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.61 - Lift Station Pumps

Current through Reg. 49, No. 28; July 12, 2024
(a) General
				  Requirements. A raw wastewater pump, with the exception of a grinder pump,
				  must:
(1) be designed to prevent
				  clogging;
(2) be capable of passing
				  a sphere of 2.5 inches in diameter or greater; and
(3) have greater than 3.0 inch diameter
				  suction and discharge openings.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.62 - Lift Station Pipes

Current through Reg. 49, No. 28; July 12, 2024
(a) Horizontal
				  Pump Suctions.
(1) Each lift station pump
				  must have a separate suction pipe that uses an eccentric reducer.
(2) Pipes in a wet well must have a
				  turndown-type flared intake.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.63 - Emergency Provisions for Lift Stations

Current through Reg. 49, No. 28; July 12, 2024
(a) A lift station must include a sign with
				  the name of the wastewater treatment facility and 24-hour emergency contact
				  information. The sign must be posted at the lift station so that it is visible
				  and legible, with block lettering that is at least 1.5 inches tall.
(b) A lift station must be designed to
				  prevent the discharge of wastewater from the lift station and at all points in
				  the upstream collection system during electrical power failures.
(c) A lift station must include an
				  audiovisual alarm system. The audiovisual alarm system must transmit alarm
				  conditions through use of an auto-dialer system, Supervisory Control and Data
				  Acquisition (SCADA) system, or telemetering system connected to a continuously
				  monitored location. At a minimum, the alarm system must automatically activate
				  to give warnings for power outages, pump failures, and high water levels.
				  Audiovisual alarms are not required if the SCADA system alerts the operator
				  about communication loss, in addition to the alarm conditions.
(d) An alarm system must include self-testing
				  capability at the control panel.
(e) An owner shall determine the reliability
				  of the existing commercial power service for a lift station using records from
				  the past 60 consecutive months from the electric utility that serves the lift
				  station. The entire record must be used if 60 months of records are not
				  available. The owner must provide the power outage records and the reliability
				  determination in the engineering report. The records must:
(1) be in writing;
(2) be on the utility's letterhead and bear a
				  signature of an electric utility employee who has knowledge of data about power
				  outages;
(3) identify the location
				  of the lift station;
(4) list the
				  total number of outages that have occurred during the past 60 consecutive
				  months; and
(5) indicate the date
				  and duration of each recorded power outage.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.64 - Materials for Force Main Pipes

Current through Reg. 49, No. 28; July 12, 2024
(a)
				  Force main pipe material must withstand the pressure generated by instantaneous
				  pump stoppage due to power failure under maximum pumping conditions.
(b) The use of pipes or fittings rated at a
				  working pressure of less than 150 pounds per square inch is
				  prohibited.
(c) Force main pipe
				  materials must be identified in the specifications with the appropriate
				  specification number for both quality control and installation from the
				  American Society for Testing and Materials, American National Standards
				  Institute, or American Water Works Association.
(d) Pipe material specified for a force main
				  must have an expected life equal to or longer than that of the lift station and
				  must be non-corrosive.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.65 - Force Main Pipe Joints

Current through Reg. 49, No. 28; July 12, 2024
(a) An
				  underground force main pipe joint must include either push-on rubber gaskets or
				  mechanical joints with a pressure rating equal to or greater than that of the
				  force main pipe material.
(b)
				  Exposed force main pipe joints must be flanged or flexible and adequately
				  secured to prevent movement due to wastewater surges.
(c) American Society for Testing and
				  Materials, American Water Works Association, or other widely accepted national
				  reference standards for the joints must be included in the project
				  specifications.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.66 - Identification of Force Main Pipes

Current through Reg. 49, No. 28; July 12, 2024
(a) A
				  detectable underground warning tape must be laid in the same trench as a force
				  main pipe. The detectable underground warning tape must be located above and
				  parallel to the force main.
(b) The
				  detectable underground warning tape must bear the label "PRESSURIZED
				  WASTEWATER" continuously repeated in at least 1.5 inch tall letters.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.67 - Force Main Design

Current through Reg. 49, No. 28; July 12, 2024
(a) Velocities.
(1) A force main must be a minimum of 4.0
				  inches in diameter, unless it is used in conjunction with a grinder pump
				  station. The executive director may approve pipes with a diameter less than 4.0
				  inches where grinder pumps are used, on a case-by-case basis in
				  writing.
(2) For a lift station
				  with two pumps, the minimum velocity is 3.0 feet per second with one pump in
				  operation.
(3) For a lift station
				  with three or more pumps:
(A) the minimum
				  velocity in a force main is 2.0 feet per second with only the smallest pump
				  operating at full speed; and
(B) a
				  minimum flushing velocity of 5.0 feet per second or greater must occur in a
				  force main at least twice daily.
(4) The engineering report must certify that
				  a pipeline with a velocity greater than 6.0 feet per second can withstand high
				  and low negative surge pressures in the event of sudden pump failure.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.68 - Force Main Testing

Current through Reg. 49, No. 28; July 12, 2024
(a) The final
				  plans and specifications must include the pressure testing
				  procedures.
(b) A pressure test
				  must use 50 pounds per square inch above the normal operating pressure of a
				  force main.
(c) A temporary valve
				  for pressure testing may be installed near the discharge point of a force main
				  and must be removed after a test is successfully completed.
(d) A pump isolation valve may be used as an
				  opposite termination point.
(e) A
				  test must involve filling a force main with water.
(f) A pipe must hold the designated test
				  pressure for a minimum of 4.0 hours.
(g) The leakage rate must not exceed 10.0
				  gallons per inch of diameter per mile of pipe per day. The following equation
				  must be used to calculate the acceptable leakage rate in gallons per hour per
				  1,000 feet of pipe.
Attached Graphic
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.69 - Maintenance, Inspection, and Rehabilitation of the Collection System

Current through Reg. 49, No. 28; July 12, 2024
(a) The owner of a
				  collection system shall develop a maintenance and inspection program for its
				  collection system with the assistance of an engineer and licensed operators.
				  The owner is responsible for ensuring that the maintenance and inspection
				  program includes all the information pertaining to inspection, maintenance, and
				  rehabilitation of the collection system necessary to ensure efficient, safe,
				  and environmentally compliant operation. The owner is also responsible for
				  ensuring that all records pertaining to maintenance, inspection, and
				  rehabilitation activities are maintained by the licensed collection system
				  operators. The inspection program must include, at a minimum:
(1) a schedule for inspections, cleaning, and
				  maintenance;
(2) methods for
				  inspecting, cleaning, and maintaining each unit within the collection
				  system;
(3) methods for estimating
				  the current condition and life expectancy of each unit; and
(4) a requirement to estimate the structural
				  integrity of each collection system unit.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.70 - Reclaimed Water Facilities

Current through Reg. 49, No. 28; July 12, 2024
(a) In
				  accordance with §
										217.6
				  of this title (relating to Submittal Requirements and Review Process), the
				  design of a distribution system that will convey reclaimed water to a user must
				  be submitted, reviewed, and approved in writing by the executive director
				  before the distribution system may be used.
(b) A municipality may be the review
				  authority in accordance with §
										217.8 of
				  this title (relating to Municipality Reviews), and may approve a reclaimed
				  water distribution system.
(c) A
				  distribution system designed to transport Type II reclaimed water, as defined
				  by §
										210.33(2)
				  of this title (relating to Quality Standards for Using Reclaimed Water), must
				  comply with this subchapter, as applicable to the project.
(d) A distribution system designed to
				  transport Type I reclaimed water, as defined by §
										210.33(1)
				  of this title must meet the requirements of subsections (e) - (j) of this
				  section.
(e) Type I reclaimed water
				  gravity pipes must comply with §§217.53 - 217.55, 217.58, and 217.59
				  of this title (relating to Pipe Design; Criteria for Laying Pipe; Manholes and
				  Related Structures; Testing Requirements for Manholes; and Lift Station Site
				  Requirements). Type I reclaimed water pipe design must prevent pipe and bedding
				  displacement.
(f) Each appurtenance
				  designed to handle reclaimed water must be identified in the plans and the
				  engineering report.
(1) An above-ground hose
				  bib, spigot, or other hand-operated connection is prohibited, except in a
				  lockable, secured area that is only accessible to authorized
				  personnel.
(2) An underground hose
				  bib must:
(A) be located in a locked,
				  below-grade vault, or be operated only by a special tool in a non-lockable,
				  underground service box;
(B) be
				  clearly labeled "NON-POTABLE WATER, DO NOT DRINK" and "NO BEBA EL
				  AGUA;"
(C) be purple; and
(D) be designed to prevent a connection to a
				  standard water hose.
(3)
				  Reclaimed water storage areas, hose bibs, and spigots must include signs in
				  both English and Spanish reading "NON-POTABLE WATER, DO NOT DRINK" and "NO BEBA
				  EL AGUA."
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter C - CONVENTIONAL COLLECTION SYSTEMS › Section 217.71 - Storage Tanks for Reclaimed Water

Current through Reg. 49, No. 28; July 12, 2024
Ground level storage tanks and elevated storage tanks for
					 reclaimed water must be designed, installed, and constructed in accordance with
					 the American Water Works Association standards with reference to materials and
					 construction practices, except for health-based standards strictly related to
					 potable water storage and contact practices.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.90 - Applicability

Current through Reg. 49, No. 28; July 12, 2024
This subchapter applies to the design, construction,
					 operation, maintenance, and testing standards for alternative collection
					 systems. Conventional collection systems and reclaimed water conveyance systems
					 are covered in Subchapter C of this chapter (relating to Conventional
					 Collection Systems). This subchapter does not apply to individual private
					 grinder pumps or septic tank effluent pumps that discharge directly into a
					 conventional collection system and are not part of an alternative collection
					 system.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.91 - Edwards Aquifer

Current through Reg. 49, No. 28; July 12, 2024
An owner who plans to install an alternative collection
					 system located over the recharge zone of the Edwards Aquifer, as "recharge
					 zone" is defined in §
										213.3 of
					 this title (relating to Definitions), must design and install the alternative
					 collection system in accordance with Chapter 213 of this title (relating to
					 Edwards Aquifer) in addition to this subchapter.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.92 - Component Sizing

Current through Reg. 49, No. 28; July 12, 2024
(a) The components
				  of an alternative collection system must be sized based on existing flow data
				  from a system and service area with similar characteristics, if such data is
				  available. Similar characteristics for sizing alternative collection systems
				  include:
(1) location;
(2) inflow and infiltration
				  characteristics;
(3) peak
				  flows;
(4) pipe
				  materials;
(5) customer base,
				  including sources of wastewater and percent contribution from the wastewater
				  sources; and
(6) any other
				  characteristics required by the executive director.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.93 - General Requirements

Current through Reg. 49, No. 28; July 12, 2024
(a) Except
				  where specifically stated in this subchapter, the design of an alternative
				  collection system must comply with the applicable requirements of Subchapter C
				  of this chapter (relating to Conventional Collection Systems).
(b) An owner shall obtain from an engineer:
(1) an operation and maintenance manual that
				  specifies the recommended operating procedures and maintenance practices for
				  the alternative collection system; and
(2) as-built drawings indicating the location
				  of all on-site components of the alternative collection system.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.94 - Maintenance and Inspection Program

Current through Reg. 49, No. 28; July 12, 2024
An alternative collection system owner shall develop and
					 implement a maintenance and inspection program in accordance with §
										217.69
					 of this title (relating to Maintenance, Inspection, and Rehabilitation of the
					 Collection System).
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.96 - Small Diameter Effluent Sewers

Current through Reg. 49, No. 28; July 12, 2024
(a)
				  Interceptor tank design. Septic tanks used as interceptor tanks must be
				  designed and constructed according to §
										285.32(b)(1)
				  of this title (relating to Criteria for Sewage Treatment Systems).
(1) An outlet of an interceptor tank must
				  have a commercially available effluent filter designed to remove particles
				  larger than 1/16 inch.
(2) The
				  volume of an equivalent dwelling unit (EDU) interceptor tank must be based on
				  the criteria in Chapter 285 of this title (relating to On-Site Sewage
				  Facilities).
(3) The volume of a
				  multiple equivalent dwelling unit (MEDU) interceptor tank must be calculated
				  using the following equations:
Attached Graphic
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.97 - Pressure Sewers

Current through Reg. 49, No. 28; July 12, 2024
(a) Pumps. A
				  pressure sewer system must include a grinder pump or a septic tank effluent
				  pump (STEP).
(b) Exceptions. Except
				  where this section specifically states otherwise, the requirements of this
				  section apply to both grinder pumps and STEPs.
(c) Service Pipe Requirements.
(1) A pressure sewer service pipe that is
				  buried less than 30 inches below ground must incorporate a check valve and a
				  fully closing gate or ball valve at the junction of a collection pipe and a
				  service pipe to allow isolation of the service pipe.
(2) A check valve must allow an unencumbered
				  flow when fully open.
(3) A valve
				  must be made of corrosion-resistant material and must have a position indicator
				  to show its open and closed position.
(4) The minimum size service pipe for an
				  equivalent dwelling unit (EDU) is 1.25 inches.
(5) The minimum size service pipe for a
				  multiple equivalent dwelling unit (MEDU) is 1.5 inches.
(6) A junction to collection pipes must be
				  made with a tee or service saddle and may use solvent weld fittings.
(7) The diameter of a service pipe must be no
				  greater than the diameter of the collection pipe to which it is
				  connected.
(8) Material used in a
				  service pipe must have performance characteristics that are at least equivalent
				  to American Society for Testing and Materials (ASTM) D 2241 Class 200 polyvinyl
				  chloride (PVC) pipe.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.98 - Vacuum Sewer Systems

Current through Reg. 49, No. 28; July 12, 2024
(a) A vacuum
				  sewer system is a non-conforming technology. The executive director may review
				  a vacuum sewer in accordance with §
										217.7(b)(2)
				  of this title (relating to Types of Plans and Specifications Approvals) and the
				  criteria described in this section.
(b) On-Site Component Design.
(1) A building lateral must be constructed
				  using pipe material that has performance characteristics at least equivalent to
				  American Society for Testing and Materials (ASTM) D 2241 Class 160 polyvinyl
				  chloride (PVC) pipe.
(2) A building
				  lateral must use a screened auxiliary vent no less than 4.0 inches in diameter
				  and located no closer than 10.0 feet to a vacuum valve.
(3) A vacuum valve control must be in a
				  tamper-resistant, watertight, and corrosion-resistant structure.
(4) A vacuum valve pit must be watertight to
				  prevent surface and groundwater inflow.
(5) A control mechanism that uses a pressure
				  differential must use atmospheric air supplied by a screened breather on the
				  lateral line.
(6) A vacuum valve
				  must have a minimum capacity of 30 gallons per minute.
(7) A service pipe must be at least 3.0
				  inches in diameter.
(8) The
				  performance characteristics of a service pipe must meet or exceed the
				  performance characteristics of ASTM D 2241 Class 200 PVC pipe.
(9) A service pipe joint must be made using
				  either vacuum-rated elastomeric gasket or solvent welding.
(10) A vacuum valve and a main pipe must be
				  separated by at least 5.0 feet of service pipe.
(11) If there is a vertical profile change in
				  a service pipe, the vacuum sewer system must have at least 5.0 feet between the
				  vacuum valve and the first profile change, and between the last profile change
				  and the main pipe.
(12) A service
				  pipe must have a minimum slope of 0.2%.
(13) The connection of a service pipe to a
				  main pipe must use a wye and a long radius elbow, oriented so that the invert
				  of the service pipe is higher than the crown of the collection pipe, and must
				  not be located within 6.0 feet of a collection pipe vertical profile
				  change.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.99 - Testing Requirements

Current through Reg. 49, No. 28; July 12, 2024
(a) Components
				  of an alternative collection system must be tested for water tightness by one
				  of the methods shown in the following table:
Attached Graphic
(b) Hydrostatic Head Test for
				  Pipe. The total infiltration or exfiltration, as determined by the hydrostatic
				  head test, must not exceed 10 gallons per inch diameter per mile of pipe per 24
				  hours at a minimum head of 2.0 feet. If the quantity of infiltration or
				  exfiltration exceeds the maximum quantity specified, the owner shall take
				  remedial action to reduce the infiltration or exfiltration to an amount below
				  the specified maximum limits.
(c)
				  Hydrostatic Head Test for Tanks. The test consists of filling the tank to the
				  top and holding the water for 24 hours to determine whether the tank is
				  leaking.
(1) The hydrostatic head test must
				  demonstrate that the tank is not leaking before the placement of backfill
				  around a tank.
(2) The hydrostatic
				  head test for a tank constructed from flexible or semi-rigid material is
				  required after placement and backfilling according to the tank manufacturer's
				  recommendations.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter D - ALTERNATIVE COLLECTION SYSTEMS › Section 217.100 - Termination

Current through Reg. 49, No. 28; July 12, 2024
(a) An alternative
				  collection system must terminate at a wastewater treatment facility or into a
				  manhole that is part of a conventional collection system.
(b) Release of gases must be controlled by
				  minimizing turbulence in the discharge into a manhole.
(c) An alternative collection system that
				  terminates at a wastewater treatment facility must discharge below the liquid
				  level at the headworks or the influent lift station.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter E - PRELIMINARY TREATMENT UNITS › Section 217.120 - General Preliminary Treatment Requirements

Current through Reg. 49, No. 28; July 12, 2024
(a) A wastewater treatment facility must be
				  designed with the ability to add provisions for removing fats, oils, and grease
				  (FOG) from the wastewater.
(b) If
				  fats, oils, or grease have caused operational failures in a treatment unit that
				  is being altered, then FOG removal must be provided to prevent future
				  failures.
(c) The headworks of a
				  wastewater treatment facility must have a screening device or a grinding
				  device.
(1) Screening devices include coarse
				  screens and fine screens.
(2)
				  Grinding devices include grinder pumps, and other grinding devices approved in
				  writing by the executive director.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter E - PRELIMINARY TREATMENT UNITS › Section 217.121 - Coarse Screens

Current through Reg. 49, No. 28; July 12, 2024
(a) A wastewater
				  treatment facility must use a coarse screen, unless all flow entering a
				  wastewater treatment facility is processed through a grinder pump or grinding
				  device.
(b) A coarse screen must
				  include an emergency overflow sized to handle the peak flow of the wastewater
				  treatment facility.
(c) A coarse
				  screen must include a way to divert flow to the emergency overflow.
(d) If the primary channel uses a
				  mechanically cleaned coarse screen, the emergency overflow must also have a
				  coarse screen.
(e) Coarse Screen
				  Design.
(1) For a manually cleaned coarse
				  screen, the clear openings between the bars must be at least 0.5 inch but not
				  more than 1.0 inch.
(2) For a
				  mechanically cleaned coarse screen, the clear openings between the bars must be
				  at least 0.25 inch but not more than 1.0 inch.
(3) A manually cleaned coarse screen must use
				  a bar rack sloped at least 30 degrees but not more than 60 degrees from
				  horizontal.
(4) A manually cleaned
				  coarse screen must be attached to a horizontal platform that allows draining
				  and temporary screenings storage to prevent unauthorized discharge between
				  cleanings.
(5) A mechanically
				  cleaned coarse screen must be designed with equipment that automatically
				  collects and disposes of screenings.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter E - PRELIMINARY TREATMENT UNITS › Section 217.122 - Fine Screens

Current through Reg. 49, No. 28; July 12, 2024
(a) A fine screen
				  may be used in lieu of a coarse screen.
(b) The clear openings in a fine screen must
				  be less than 0.25 inch.
(c) Any
				  five-day biochemical oxygen demand (BOD5) reduction
				  percentage claimed for a fine screen must be developed through a study
				  conducted on actual full-scale operation of the proposed fine screen. The
				  BOD5 reduction percentage claimed must not exceed
				  35%.
(d) The engineering report
				  must justify any reduction in the size of a treatment unit that is based on
				  removal of BOD5 by a fine screen.
(e) An owner who claims a
				  BOD5 reduction credit must include a sufficient number
				  of fine screen units so that any BOD5 reduction claimed
				  will be met with the largest fine screen unit out of service.
(f) A design may include a single fine screen
				  unit only if the design includes an emergency overflow channel with a coarse
				  screen to accept flow when the fine screen is out of service. No
				  BOD5 removal credit is allowed with a single fine screen
				  design.
(g) A coarse screen must be
				  provided ahead of a fine screen when the manufacturer of a fine screen
				  recommends prescreening before the fine screen.
(h) A moving or rotating fine screen must use
				  a continuous cleaning device, such as water jets or wiper blades.
(i) A fine screen unit must automatically
				  convey the screenings to a storage area or processing unit that complies with
				  §
										217.123
				  of this title (relating to Screenings and Debris Handling).
(j) A fine screen must meet the
				  manufacturer's recommendations with respect to velocity and head loss through
				  the fine screen.
(k) A fine screen
				  must use either a bar rack or a perforated plate.
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter E - PRELIMINARY TREATMENT UNITS › Section 217.123 - Screenings and Debris Handling

Current through Reg. 49, No. 28; July 12, 2024
(a) A
				  screening device must have a minimum storage capacity of one day of screenings
				  and debris.
(b) A container for
				  screenings and debris must be fully covered with a tight-fitting cover designed
				  to reduce vector attraction, or must use an alternative method of reducing
				  vector attraction approved in writing by the executive director.
(c) A storage area for screenings and debris
				  must drain to the headworks of the wastewater treatment facility or the
				  influent lift station and must include runoff control.
(d) All screenings and debris must be
				  collected in containers described in subsection (b) of this section and be
				  managed and disposed of in accordance with Chapter 330 of this title (relating
				  to Municipal Solid Waste).
Texas Administrative Code › Title 30 - ENVIRONMENTAL QUALITY › Part 1 - TEXAS COMMISSION ON ENVIRONMENTAL QUALITY › Chapter 217 - DESIGN CRITERIA FOR DOMESTIC WASTEWATER SYSTEMS › Subchapter E - PRELIMINARY TREATMENT UNITS › Section 217.124 - Grit Removal Systems

Current through Reg. 49, No. 28; July 12, 2024
(a) A
				  wastewater treatment facility using anaerobic digestion must have a grit
				  removal system. A grit removal system is optional for all other
				  facilities.
(b) A grit removal
				  system includes units and processes capable of removing inert,
				  non-biodegradable particles.
(c) A
				  grit removal system must include at least two units capable of operating at the
				  peak flow of the wastewater treatment facility when grit removal is required by
				  subsection (a) of this section.
(d)
				  Each grit removal system must include:
(1) an
				  emergency overflow to accept flow when a grit removal unit is off-line;
				  and
(2) a means of diverting flow
				  to the emergency overflow.