reglab/statecodes huggingface dataset:
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.3 - Projected flow criteria

Current through Register Vol. 56, No. 14, July 15, 2024
(a) The values
				specified below are to be used in computing the projected flow to wastewater
				conveyance and treatment facilities and when making an application for a
				treatment works approval pursuant to N.J.A.C. 7:14A-22. The specific
				measurement unit listed for each category shall be used as the basis for the
				projected flow. No additional provisions for inflow and infiltration are
				required. For the purposes of design only, other values, proposed by the design
				engineer, through actual water usage data, may be accepted at the Department's
				discretion, with an appropriate safety factor. However, all determination
				concerning whether or not any specific project requires a treatment works
				approval and/or sewer ban exemption shall be based upon the projected flow
				criteria established below. These criteria are not mandated to be used by
				sewerage authorities as a basis for establishing local user fees and/or
				connection fees.
Data in
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(b) Flow
				for facilities that have combined uses shall be determined by the summation of
				all appropriate projected flow values for each use.
(c) The Department recognizes that the table
				in (a) above may not cover all establishments and facilities, and in particular
				facilities that require an industrial treatment works approval. In the event
				that a facility is not covered, the applicant shall propose the projected flow
				based upon operation of similar facilities or best professional judgment. The
				Department reserves the right to accept, modify or deny the proposed flow
				values.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.4 - Plans and specifications submitted to the Department with treatment works approval applications

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Maps, drawings,
				plans and profiles submitted as part of a treatment works approval application
				shall conform to the following:
1. Plans
				shall be drawn to standard scale and show the entire area of the project,
				including a general site plan;
2.
				The name of the New Jersey licensed professional engineer responsible for the
				design and his or her signature and embossed seal shall appear in the title
				block of each sheet of the submitted plans;
3. In the event that there is more than one
				sheet of plans, all shall be bound together and an index provided;
4. Plans shall not exceed 30 inches by 42
				inches in size;
5. Streams and
				wetland areas, if present, shall be clearly indicated;
6. Plans shall show municipal boundaries,
				property lines, easements and all existing and proposed streets, including the
				existing and proposed surface elevations at all street intersections where
				sewer lines are proposed; and
7.
				All existing and proposed structures, sanitary sewers and combined sewers, both
				above and below ground, shall be shown and clearly labeled.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.5 - Engineering design reports to be submitted to the Department with treatment works approval applications

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Engineering
				reports required to be submitted pursuant to
				7:14A-22.8 for domestic treatment
				systems shall, at a minimum, include:
1. A
				complete description of the selected waste treatment system;
2. For the modification of an existing system
				which has not previously been granted a treatment works approval, the
				capacities of the existing units and a brief description of the operation of
				each, and a statement concerning which units are existing and which are
				proposed at the time of the application. If there exists a previously issued
				treatment works approval for the subject facility, the date of issuance and the
				TWA number shall be provided;
3.
				The basis and computations for the projected wastewater flow;
4. Hydraulic profiles of the flow of
				wastewater through the system;
5. A
				unit by unit mass balance for all discharge parameters;
6. The ultimate disposal location of all
				effluent;
7. The basis and
				computations for average and peak flow requirements;
8. The expected composition of the influent
				and effluent from the treatment system including the average, maximum and
				minimum values of the pollutant parameters specified in the facility's NJPDES
				permit;
9. An evaluation of the
				quantity and quality of any and all residuals generated and projected to be
				generated, including a hydraulic profile and unit by unit mass balance for the
				flow of residuals through the system;
10. Documentation of adequate storage and
				handling facilities for residuals;
11. Provisions for the ultimate management of
				residuals pursuant to the State Solid Waste Management Plan and/or the
				Statewide Sludge Management Plan, as applicable. For proposed upgrading or
				expansion of domestic treatment works, sludge management planning forms may be
				submitted pursuant to the Statewide Sludge Management Plan, Appendix K, to
				satisfy this requirement;
12.
				Details of flow monitoring and control, alarm systems, auxiliary power, storage
				facilities for treatment chemicals and wastes, and a plan for bypassing units
				during construction or maintenance; and
13. A signed and sealed statement from the
				New Jersey licensed professional engineer who designed the treatment works
				attesting to the proposed treatment works' ability, as designed, to meet the
				requirements of this subchapter and to attain all applicable discharge
				limits.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.7 - Inverted siphons

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Inverted
				siphons shall be constructed of ductile iron or other approved material and
				shall not have less than two barrels.
(b) Provisions shall be made for rodding and
				flushing.
(c) A velocity of 3.0
				feet per second shall be maintained and flow control gates in chambers shall be
				provided.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.8 - Manholes

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Manholes shall
				be provided at the ends of each sewer line and at intersections and at all
				changes in grade, size or alignment.
(b) Distances between manholes shall not
				exceed 400 feet for sewers 18 inches or less in diameter and 500 feet for
				sewers greater than 18 inches in diameter.
(c) A drop pipe shall be provided for sewers
				entering manholes above the manhole invert whenever the difference in elevation
				is two feet or more.
(d) No
				manholes or connections to a sanitary sewer system are permitted within 100
				feet of a public water supply well or a below-grade reservoir.
(e) Adequate provisions shall be made for
				ventilation.
(f) Watertight manhole
				covers are required for all street elevations less than 10 feet above the North
				American Vertical Datum of 1988 and/or wherever the top of a manhole may be
				flooded by street runoff or high water. These manholes shall be properly
				protected, of watertight construction, and shall be inspected for adequacy
				after installation.
(g) The minimum
				diameter of manholes is 48 inches; larger diameters are preferable for large
				diameter sewers. A minimum access diameter of 22 inches shall be
				provided.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.9 - Outfalls

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Ocean outfalls
				from municipal wastewater treatment works shall extend at least 1,000 feet in
				length beyond the mean low water mark. Manholes are required on the shore end
				of all gravity outfalls.
(b)
				Outfalls, other than those to the ocean, shall be submerged and so located as
				to accomplish effective dispersion of flow.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.10 - Wastewater pumping stations

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Raw sewage
				pumping stations shall conform to the following requirements:
1. Sewage shall be screened before pumping.
				Comminutors may be approved in lieu of screens, however, the requirement for
				screening raw sewage may be waived, at the Department's discretion, for
				individual, privately owned pumping stations;
2. Pumping stations shall provide for stage
				pumping, preferably by the use of variable speed pumps, so as to eliminate, as
				far as practical, surges of flow to or through the treatment plants;
3. Pump stations shall be provided with two
				power sources, one as a back-up;
4.
				Automatic sound alarms, operating independently of the main power system, shall
				be installed to give warning of high water, power failure, or breakdown. Such
				alarm systems shall be telemetered to a police station or other staffed
				location so that competent emergency assistance can be obtained on a 24 hour
				basis;
5. Pumping stations shall be
				protected against flooding and adequate provision shall be made for access to
				the stations during storm events;
6. Adequate light and ventilation shall be
				provided at all pumping stations;
i. Where
				operational or maintenance duties are required in enclosed areas or pits,
				forced ventilation by appropriate means shall be provided with sufficient
				capacity to induce at least 12 air changes per hour;
ii. Appropriate equipment to guard against
				explosion shall be utilized; and
7. Adequate fresh-water facilities shall be
				provided to permit routine washdown and cleaning operations at all pumping
				stations;
i. Where a domestic water service
				connection is provided to a pumping station, the water supply shall be
				adequately protected by a backflow prevention device;
ii. Connections between potable water lines
				and wastewater pumps or sewers is not permitted.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.11 - Submersible wastewater pumps

Current through Register Vol. 56, No. 14, July 15, 2024
(a) In addition to
				the requirements specified at
				7:14A-23.10, submersible wastewater
				pumps shall meet the following additional requirements:
1. Submersible pumps and motors shall be
				designed specifically for raw sewage use, including total submersion during a
				portion of each pumping cycle;
2.
				Submersible pumps shall be readily removable and replaceable without dewatering
				the wet well or disconnecting any piping in the wet well;
3. The motor control center shall be located
				outside the wet well and be protected by a conduit seal or other appropriate
				measures meeting the requirements of the National Electrical Code, to prevent
				the atmosphere of the wet well from gaining access to the control center. The
				seal shall be so located that the motor may be removed and electrically
				disconnected without disturbing the seal; and
4. Winch and guide rails shall be provided to
				facilitate pump removal.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.12 - Dry wells and wet wells

Current through Register Vol. 56, No. 14, July 15, 2024
(a) The
				construction of dry wells and wet wells for sewage pumping stations shall meet
				the following requirements:
1. Dry and wet
				wells shall be completely separated and have adequate ventilation and
				drainage;
2. Dry wells and wet
				wells shall have a means of entrance and exit, preferably by a
				stairway;
3. Dry wells shall have
				sufficient accessible space for the repair and removal of pumps;
4. The detention time of a wet well shall not
				exceed ten minutes when the flow is at the average dry weather rate. The
				detention time is calculated by dividing the volume of the wet well (volume
				between the pump on and the pump off switch levels) by the projected flow for
				the pumping station;
i. Wet well detention
				times greater than 10 minutes may be approved by the Department for small pump
				stations that cannot meet this requirement due to the minimum available size of
				the wet well and an estimated low volume daily wastewater flow. If longer
				detention times are proposed, additional measures necessary to prevent the
				development of septic conditions may be required;
ii. To minimize the development of septic
				conditions during the early phases of pump station operation, the Department
				may require special operational and/or maintenance procedures particularly when
				the initial contributory flows will be substantially below the approved design
				flow;
5. The base of
				pump station wet wells shall slope at least 45 degrees toward the pump suctions
				to prevent solids accumulation; and
6. A sump pump or other effective method to
				drain accumulated water from the dry well to the wet well and to prevent sewage
				from entering the valve pit during surcharged wet weather conditions shall be
				provided.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.13 - Wastewater treatment plants

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Adequate
				treatment shall be provided for all wastewater before discharge into the waters
				of the State.
1. The minimum level of sewage
				treatment shall be as specified by the Department in the applicable NJPDES
				permit.
2. The design of the
				proposed treatment system shall be adequate to meet all NPDES or NJPDES permit
				requirements, and shall take into consideration the topography of the plant
				site, receiving waters, operating costs and effects of any industrial waste
				component.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.14 - Measuring, recording, and sampling requirements at treatment plants

Current through Register Vol. 56, No. 14, July 15, 2024
(a) At treatment
				plants, a means for continuous measuring, indicating and recording of the
				sewage flows shall be installed.
(b) Meters shall be installed in such a
				manner and location so as to provide a true indication of actual
				flow.
(c) All wastewater treatment
				plant designs shall include provisions in terms of number and location for
				sampling and monitoring as required by its NJPDES permits, Sludge Quality
				Assurance Reports, Bioassay, and Local Pretreatment Discharge Limits.
1. At a minimum, all wastewater treatment
				facilities shall be designed and constructed to provide for the collection of
				representative samples as follows:
i. Influent
				quality before introduction of recycled waste which may be incorporated within
				the wastewater facility's processes (for example, wastewater quality prior to
				introduction of supernatant from sludge thickening or digestion and prior to
				the introduction of scrubber water from sludge incineration etc.);
ii. Effluent quality after the last treatment
				plant unit at the point of discharge;
iii. Sludge at a location meeting the
				requirements established under the Sludge Quality Assurance Regulations,
				N.J.A.C. 7:14C. In addition, the provisions for sludge sampling shall meet the
				following minimum requirements:
(1) Sludge
				sampling points shall be established at a location which assures homogeneity
				and best represents the physical and chemical quality of all sludge which is
				removed from the treatment works for ultimate management;
(2) Sludge sampling points shall provide for
				sample collection at the frequency required under the Sludge Quality Assurance
				Regulations; and
(3) Sampling
				equipment shall be constructed of materials which will not contaminate or react
				with the sludge (for example, galvanized or zinc coated items may not be used);
				and
iv. Wastewater
				quality after every treatment unit.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.15 - Screening and comminution

Current through Register Vol. 56, No. 14, July 15, 2024
(a) All sewage
				treatment plants shall be provided with a means for screening or comminuting
				coarse material in the sewage. Except in small plants with a design capacity of
				less than 150,000 gallons per day, screening equipment shall be of the
				mechanical type.
(b) Operation of
				mechanically cleaned devices shall be continuous or automatically
				controlled.
(c) Bar screens shall
				conform to the following:
1. Bars of
				nonmechanical screens preceding treatment plants shall be spaced so that the
				maximum clearance between bars is not greater than 1 1/2 inches and not less
				than one inch;
2. Clear openings
				for mechanically cleaned screens shall not be less than 5/8 inch;
3. Bar clearance for coarse racks or screens
				preceding mechanically cleaned screens or comminutors shall not exceed 1 3/4
				inches;
4. At sewage pumping
				stations, openings in bar screens shall be at least one inch smaller than the
				solid size which can be handled by the pump;
5. Motors shall be of the type suitable for
				operation in a damp atmosphere if placed below ground;
6. The screen chamber shall be designed to
				provide a velocity through the screen of not less than one foot per second at
				average flow and not more than three feet per second, based on the screen
				openings projected vertically between the invert and the crown;
7. Hand-cleaned screens shall be inclined
				from 30 degrees to 45 degrees from horizontal; and
8. Where only one mechanical screen is
				provided, auxiliary hand-cleaned screens shall be provided for use in case of
				failure of the mechanically cleaned screens.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.16 - Grit removal equipment

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Except in small
				sewage treatment plants with a design flow of less than 150,000 gallons per
				day, mechanical grit removal devices shall be provided.
(b) Grit chamber channels and flumes shall be
				designed to produce velocities of not less than 0.5 foot per second and not
				greater than one foot per second. Detention shall be adequate to deposit grit
				coarser than 0.20 millimeters.
(c)
				All grit chambers shall be provided with a means for washing the grit and
				return of washwater to wastewater flow.
(d) Grit removal facilities shall include
				adequate means for the collection and temporary storage of grit material prior
				to sanitary disposal.
1. A stairway or ladder
				shall be provided for entrance if the unit is four feet or more below ground
				level.
2. Adequate lighting and
				ventilation shall be provided.
3.
				Provisions for dewatering shall be made such that water content is not a
				limitation to ultimate disposal.
4.
				Provisions for the treatment and disposal method for drainage of the grit shall
				be provided.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.17 - Settling tanks

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Multiple units
				or independent compartments shall be provided except in small installations of
				less than 150,000 gpd design flows.
(b) Channels shall be designed to maintain a
				velocity of one foot per second at 50 percent of design flow.
(c) Baffling shall be provided to dissipate
				inlet velocity and diffuse flow equally across the cross section of the tank.
				Baffles shall also be provided to retain scum in primary tanks. Scum collectors
				shall be provided.
(d) Weirs shall
				be adjustable.
(e) The minimum
				slope of the side walls of sludge hoppers shall be 1.7 vertical to 1.0
				horizontal.
(f) The use of upward
				flow settling tanks may be considered when accompanied by supporting data on
				their hydraulic characteristics and results of operation in actual
				plants.
(g) Walls of settling tanks
				shall extend at least 18 inches above the surrounding ground surface.
(h) Mechanical means shall be provided for
				the collection and removal of sludge from settling tanks, and shall meet the
				following design requirements:
1. Primary
				tanks, except those preceding the activated sludge process, shall have a
				surface settling rate that does not exceed 600 gallons per square foot per day
				of design flow, and a minimum water depth of six feet;
2. Inlets shall be designed to dissipate
				inlet velocity promptly so as to diffuse the flow and to prevent
				short-circuiting; and
3. Adjustable
				outlet weirs shall be provided.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.18 - Chemical coagulation

Current through Register Vol. 56, No. 14, July 15, 2024
(a) This method of
				sewage treatment is considered to be a degree of treatment intermediate between
				sedimentation, and sedimentation plus oxidation. Chemical coagulation will not
				be considered as a substitute for oxidation.
(b) Coagulants shall be applied to the sewage
				in a suitable and approved form proportional to the sewage flow.
(c) A chamber or tank for the rapid and
				thorough mixing of the sewage and coagulants shall be provided with a detention
				period of not less than one minute based on design flow.
(d) Two or more flocculation tanks, with
				individual controls, shall provide a combined detention period of between 20
				and 30 minutes. Diffused air or paddles with a slow rotary motion shall be
				provided for continuous agitation of the full content of the flocculation
				tanks.
(e) The automatic control of
				apparatus for feeding chemicals shall include equipment to provide variation in
				chemical dosage with variation in sewage flow.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.19 - Trickling filters

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Trickling
				filters of the "standard rate" or "high rate" type may be used for the
				treatment of sewage amenable to treatment by a biological process.
(b) Filters shall be preceded by effective
				preliminary treatment and shall be followed by individually controlled and
				mechanically cleaned settling tanks.
(c) When the average five-day B.O.D. of the
				raw sewage exceeds 325 parts per million, two stages of trickling filter
				treatment are required, with or without intermediate sedimentation.
				Consideration may be given to designs providing supplementary preliminary
				treatment in the case of strong sewages or industrial wastes.
(d) The sewage shall be distributed uniformly
				over the filter so that at least 95 percent of the surface area receives sewage
				directly.
1. Distribution devices may be
				actuated by twin siphons, pumps or gravity discharge from preceding treatment
				plant units.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.20 - Rotating biological contactors

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Rotating
				biological contactors (RBC) process may be used when wastewater is amenable to
				biological treatment.
(b) RBCs
				shall be preceded by properly designed settling facilities. Efficient grease
				and scum removal devices shall be provided.
(c) At least four stages shall be provided
				for secondary treatment applications. Additional stages may be necessary for
				nitrification and additional BOD removal.
(d) Permanent buildings or covers shall be
				used to protect the RBC units from sunlight and winter weather. Provisions
				shall be made for access to the RBC units for observation and repairs.
				Buildings shall have adequate ventilation, heating, and humidity control, and
				an internal hoisting device for the removal of the shaft/media assembly. Covers
				shall be made in removable sections, or have some other means of allowing
				removal and replacement of the shaft/media assembly.
(e) Drive systems shall be variable speed and
				may be mechanical or air driven. Air driven systems shall have positive air
				flow metering and control to each RBC unit.
1. Bearing units shall be self-aligning and
				shall be located outside of media covers to allow easy access for lubrication
				and maintenance.
2. A provision for
				auxiliary power during power outages is required.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.21 - Activated sludge

Current through Register Vol. 56, No. 14, July 15, 2024
(a) The activated
				sludge process may be used when wastewater is amenable to biological
				treatment.
(b) The design data
				outlined in this section are presumed to achieve a removal of 90 percent or
				more of the B.O.D. and suspended solids susceptible to treatment from sewage of
				normal characteristics and may not be appropriate where only partial removals
				are intended.
(c) Provisions for
				pre-chlorination of the raw sewage shall be made depending on the condition of
				the influent.
(d) The design of
				plants which may receive abnormally strong concentrations of wastewater, or
				require an unusual aeration period or special equipment, may be considered for
				approval as an activated sludge process upon presentation of appropriate
				supporting data obtained from existing installations that demonstrate the
				efficiency of the process.
(e)
				Settling tanks for the activated sludge process shall be designed in
				conformance with the following:
1. A skimming
				tank, or equivalent, shall be provided for wastewater which contains greater
				than 100 milligrams per liter (mg/l) of oil or grease;
2. Except in small sewage treatment plants
				with a design capacity of less than 150,000 gallons per day, a minimum of two
				preliminary settling tanks shall be provided with a total capacity that
				provides a detention period of 90 to 150 minutes and a maximum surface settling
				rate of 1,000 gallons/square foot/day based upon design flow;
3. For plants having a design capacity of 2.0
				M.G.D. or less, final settling tanks shall have a minimum eight foot side water
				depth and a maximum surface settling rate of 800 gallons per square foot per
				day. For plants with a design capacity of more than 2.0 M.G.D. final settling
				tanks shall have a minimum 10 foot side water depth and a maximum surface
				settling rate of 1,000 gallons per square foot per day;
4. Final settling tanks shall be provided in
				multiple units except in small installations;
5. Mechanical means shall be provided for the
				collection and removal of sludge from all settling tanks; and
6. The use of upward flow settling tanks may
				be considered when accompanied by supporting data on their hydraulic
				characteristics and results of operations in actual plants.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.22 - Intermittent sand filters

Current through Register Vol. 56, No. 14, July 15, 2024
(a) For
				intermittent sand filters, at least two filter units shall be
				provided.
(b) Sod and similar
				coverings over intermittent sand filters are prohibited.
(c) Loading requirements for intermittent
				sand filters are as follows:
1. Organic
				loading of five-day B.O.D. shall not exceed 3.8 pounds per 1,000 square feet
				per day;
2. With acceptable primary
				treatment of normal sewage, volumetric loading shall not exceed 2,875 gallons
				per 1,000 square feet per day. For stronger sewage the rate of filtration shall
				be proportionately lower.
3. For
				chemical coagulation and sedimentation the volumetric loading shall not exceed
				5,750 gallons per 1,000 square feet per day.
4. For standard or high rate trickling
				filters or activated sludge followed by secondary settling tanks, the
				volumetric loading shall not exceed 9,200 gallons per 1,000 square feet per
				day.
5. For schools, camps, and
				institutions, not having a full-time treatment plant operating staff,
				volumetric loading should not exceed 1,150 gallons per 1,000 square feet per
				day for primary tank effluent.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.23 - Chlorination

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Chlorination
				devices shall be of the solution feed type, installed in duplicate or with
				duplicate essential parts. Chlorinators shall be of an automatic feed type for
				sewage treatment plants with a design capacity of greater than 150,000 gallons
				per day.
(b) Chlorinating devices
				shall be designed in accordance with the following:
1. The devices shall be placed in separate
				rooms with an outside entrance only and shall be provided with adequate
				ventilation.
2. Rooms containing
				chlorinating devices shall have doors that open outward.
3. Provisions for heating during the winter
				season are required.
4. Suitable
				gas masks shall be provided and maintained in good operating condition, and
				shall be stored in an accessible location outside the chlorine room.
5. An automatic alarm and observation window
				to permit visual inspection without opening the door, should be
				provided.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.24 - Dechlorination

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Dechlorination
				chemicals shall be applied in an area where the flow is turbulent and short
				circuiting is minimal, immediately preceding discharge of the effluent. A
				contact period of one to five minutes is recommended.
(b) If sulfur dioxide is utilized for
				dechlorination, safety precautions similar to those for chlorination systems
				are required, including the provision of self-contained breathing apparatus.
				Steps shall be taken to prevent the accidental interconnection of chlorine and
				sulfur dioxide lines to avoid an explosion hazard.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.25 - Ultraviolet disinfection

Current through Register Vol. 56, No. 14, July 15, 2024
(a) The following
				provisions apply to the design of ultraviolet disinfection (UV) systems:
1. The turbidity and color of the wastewater
				shall be addressed in the design. Treatment of the influent wastewater prior to
				the UV units by intermittent sand filtration, or other filtration, as approved
				by the Department, is recommended. Removable screens, located upstream of the
				UV unit, are recommended to prevent debris from entering the system.
2. Wastewater shall pass over the UV source
				in a thin film, so that the maximum depth of penetration is no greater than two
				inches. The UV contact time shall be dictated by water absorbance and film
				thickness.
3. A UV intensity sensor
				shall be installed at the maximum depth from the source with an alarm to alert
				operators when the UV level falls below acceptable levels. The UV intensity
				reading shall be displayed by a meter on the control panel. UV sensors shall be
				properly maintained to insure reliable, accurate readings.
4. The UV unit shall be protected from dust,
				excessive heat, and freezing temperatures. Adequate ventilation of
				heat-generating electrical components shall be provided.
i. An alarm system shall be provided to alert
				the operator of excessive temperatures in the ballast power panel.
5. When utilizing a closed channel
				UV system two separate units, or one UV unit and another approved form of
				disinfection, each capable of treating peak flow, shall be provided.
6. Open channel UV systems shall be equipped
				with a sufficient number of bulbs such that a safety factor of at least 125
				percent will be provided. Separate electrical racks shall also be provided to
				permit maintenance of the system without removing the entire unit from
				service.
7. Electrical wiring shall
				be properly sized and the wire covering shall be resistant to UV radiation
				effects.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.27 - Sludge pumps

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Duplicate
				sludge pumps shall be provided and shall be so arranged with appropriate valves
				such that either may be used, in emergencies, for handling either raw or
				digested sludge.
(b) The capacity
				of each pump for handling raw sludge shall be such as to remove sludge from
				hoppers of settling or concentration tanks in not less than one hour nor more
				than two hours. Pump capacity shall be adjustable.
(c) A minimum positive head of 24 inches
				shall be provided at the suction side of centrifugal pumps and is desirable for
				all types of pumps. Maximum dynamic suction lift of plunger pumps shall be 10
				feet.
(d) Sludge sampling
				facilities shall be provided in accordance with
				7:14A-23.14. The size of valve and
				piping shall be at least 1 1/2 inches.
(e) Pressure gauges shall be provided on the
				discharge line of sludge pumps to denote pumping and to indicate unusual
				discharge heads due to clogging.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.29 - Residual dewatering lagoons

Current through Register Vol. 56, No. 14, July 15, 2024
(a) The use of
				lagoons for the drying or residuals is permissible provided that:
1. The lagoons shall be sufficiently isolated
				from existing and possible future residences as to afford such residences
				reasonable protection from odors or other nuisances which may arise from the
				operation of such lagoons;
2. The
				permeability of the bottom and sides of the lagoon shall not exceed 1 x 10[LESS
				THAN]-7[GREATER THAN] cm/sec, for solid waste classes I.D. 12, 73, and 74 as
				defined by 7:26-2.13(g). For
				other solid waste I.D. classes of residuals, the bottom and side permeability
				shall be approved by the Department, on a case-by-case basis, after evaluating
				the specific chemical characteristics of the residuals to be
				dewatered;
3. The area provided
				shall be at least double that specified for open drying beds, and a sufficient
				number of lagoon units shall be available to permit withdrawals from service
				and cleaning at necessary intervals. The means provided for residual removal,
				ultimate management and resting intervals shall be indicated;
4. Shallow residual dewatering lagoons shall
				meet the requirements of
				7:14A-23.32(d);
5. Residuals shall be properly stabilized for
				pathogen reduction and vector attraction reduction in accordance with N.J.A.C.
				7:14A-20 prior to discharge to the lagoon; and
6. Means shall be provided for obtaining
				representative samples of the residual prior to discharge to the residual
				lagoon pursuant to the measuring, recording, and sampling requirements in
				7:14A-23.14.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.30 - Mechanical dewatering of residuals

Current through Register Vol. 56, No. 14, July 15, 2024
(a) For
				installations where residuals are mechanically dewatered, mechanical dewatering
				equipment shall be provided in duplicate unless nuisance-free storage of
				residuals is provided in a manner approved by the Department.
1. Duplicate installation shall include
				duplicate conditioning equipment, conveyors, feeders and other
				appurtenances.
2. Capacity shall be
				sufficient to process the residuals generated to prevent any day-to-day
				accumulation.
3. The engineer's
				report shall include complete data on capacity, residual volume to be handled,
				conditioning methods, and equipment, chemical storage and satisfactory
				management of residual cake.
4. The
				plans shall show provisions for housing the dewatering equipment, for
				ventilation and odor control, for handling and/or loading the residual cake and
				the area and method proposed for ultimate management.
5. Filtrate collection and treatment shall be
				provided and indicated.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.31 - Stabilization residuals

Current through Register Vol. 56, No. 14, July 15, 2024
(a) All residuals
				stabilization equipment shall be designed to meet the requirements for pathogen
				reduction and vector attraction reduction in accordance with N.J.A.C.
				7:14A-20.
(b) New residual
				stabilization operations, or expansions shall be designed in accordance with
				the following requirements:
1. Residual
				stabilization and curing operations shall be enclosed and vented and shall be
				in compliance with the Department's air pollution control rules at N.J.A.C.
				7:27. For residual stabilization operations which process less than one dry ton
				per day, the Department shall waive the requirement for enclosure of the
				residual stabilization operation, in full or in part, where the control of the
				effects of odor or climatic conditions are otherwise satisfactorily addressed
				as part of the permit application consistent with
				7:14A-20.6.
2. All transfer conveyors and associated
				equipment shall be constructed of fire resistant materials.
3. Composting systems shall be designed to
				produce a sludge derived product that has a final solids content between 50 and
				60 percent.
4. The aeration system
				shall be designed to distribute air evenly throughout the composting mass, to
				maintain aerobic conditions, and to control temperatures within acceptable
				ranges in active composting pursuant to (a) above.
5. The process monitoring system shall be
				designed to monitor all process criteria (such as temperature, pH, or percent
				solids) as required pursuant to (a) above.
6. Leachate collection and treatment shall be
				provided.
7. Equipment capable of
				adequately mixing bulking agent and dewatered sludge to the desired porosity,
				structure, and moisture content prior to composting shall be
				provided.
8. The minimum time for
				compost curing shall be 30 days. Compost curing capacity shall be developed
				independent of finished compost storage capacity.
9. Storage capacity for a minimum of 30 days
				production of stabilized residuals shall be provided, unless suitable
				alternative contingency arrangements, as acceptable to the Department, are
				demonstrated.
10. For active
				composting, the maximum height of a static pile shall not exceed seven
				feet.
11. Process and curing pads
				shall provide for drainage away from piles and shall have a minimum slope of
				two percent.
12. Compost curing
				pile designs shall provide aeration either through the installation of aeration
				equipment, or through mechanical turning at least two times per week. For
				compost curing on pads, the maximum height of the curing piles shall not exceed
				10 feet.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.32 - Storage of residuals or septage; and septage handling

Current through Register Vol. 56, No. 14, July 15, 2024
(a) All new,
				upgraded, or expanded domestic treatment works shall be designed to provide
				adequate residuals storage capacity based on anticipated downtimes (that is
				weather, maintenance closures, etc.) of the ultimate residual management
				alternative. This design shall insure the continual, uninterrupted operation of
				all residual production/processing activities when the ultimate residual
				management alternative cannot be utilized.
(b) The design of sludge or septage storage
				facilities shall:
1. Prevent overtopping from
				normal or abnormal operations, overfilling, wind and wave action,
				precipitation, run-on and run-off, malfunctions of equipment, and human
				error;
2. Specify materials that
				have the appropriate physical and chemical properties, wall thickness, and
				structural integrity to prevent massive failure due to climatic conditions,
				pressure gradients, and daily operational stresses;
3. Provide for the periodic removal of stored
				residuals, cleaning, and inspection;
4. Prevent the migration of residuals to
				ground water and/or surface waters;
5. Provide for adequate collection and
				treatment of supernatant or leachates where applicable;
6. Permit residuals sampling and collection
				pursuant to
				7:14A-23.14; and
7. Include overflow prevention devices and/or
				high level alarms and automatic shut off valves on influent lines.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 23 - TECHNICAL REQUIREMENTS FOR TREATMENT WORKS APPROVAL APPLICATIONS › Section 7:14A-23.33 - New treatment methods and technologies

Current through Register Vol. 56, No. 14, July 15, 2024
(a) Designs for new
				treatment methods or for methods not included in these rules shall be
				accompanied by detailed supporting data from full scale tests performed under
				competent supervision. In evaluating the acceptability of applications for new
				treatment methods, or for technologies not included in these rules, the
				Department shall utilize the best available information including, but not
				limited to, texts, reports and U.S. Environmental Protection Agency
				publications that contain research, test, and design information relevant to
				the applicant's proposal.
(b) The
				Department may disapprove new treatment methods if in its opinion such
				disapproval is in the interest of environmental protection.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 24 - ADDITIONAL REQUIREMENTS FOR CERTAIN STORMWATER DISCHARGES › Section 7:14A-24.1 - Scope

Current through Register Vol. 56, No. 14, July 15, 2024
This subchapter sets forth additional requirements
				  applicable to any stormwater DSW and stormwater DGW for which a NJPDES permit
				  is required under
				  7:14A-24.2.
New Jersey Administrative Code › Title 7 - ENVIRONMENTAL PROTECTION › Chapter 14A - NEW JERSEY POLLUTANT DISCHARGE ELIMINATION SYSTEM › Subchapter 24 - ADDITIONAL REQUIREMENTS FOR CERTAIN STORMWATER DISCHARGES › Section 7:14A-24.2 - Stormwater discharges for which a NJPDES permit is required under this subchapter; exemptions

Current through Register Vol. 56, No. 14, July 15, 2024
(a) A NJPDES permit
				under this subchapter is required for the following stormwater DSW and DGW:
1. Stormwater DSW for which a permit was
				issued under Section 402 of the Federal Act (
				33 U.S.C. §
											1342 ) prior to February 4, 1987 (see
				7:14A-24.7(a) and
				(c) );
2. Stormwater DSW associated with industrial
				activity from point or nonpoint sources (see
				7:14A-24.7(a) and
				(b) );
3. Stormwater DSW associated with small
				construction activity from point or nonpoint sources (see
				7:14A-24.7(a) 
				);
4. Stormwater DSW and DGW that
				are from concentrated animal feeding operations and for which a NJPDES permit
				is required under
				7:14A-2.13 (see
				7:14A-4.7 and 4.8);
5. Stormwater DSW from large or medium
				municipal separate storm sewer systems (see
				7:14A-25.10 );
6. Stormwater DSW and DGW from small
				municipal separate storm sewer systems (small MS4s) identified under
				7:14A-25.2(a) or
				(b) (see
				7:14A-25.5 );
7. Stormwater DSW from point or nonpoint
				sources (other than activities identified under
				7:14A-2.5(a)4  or
				5) for which either the Department or the USEPA Regional Administrator
				determines (also see
				7:14A-24.7(a) and
				(c), 25.2(a)4 and 25.5) that:
i. Stormwater controls are needed for the
				point source discharge based on total maximum daily loads (TMDLs) that address
				the pollutant(s) of concern; or
ii.
				The point or nonpoint source discharge, or category of discharges within a
				geographic area, contributes to a violation of a surface water quality
				standard, or is a significant contributor of pollutants to surface
				water;
8. Stormwater DSW
				and DGW from agricultural and silvicultural nonpoint sources regulated under
				7:14A-2.5(d);
				and
9. Stormwater DGW otherwise
				exempt under
				7:14A-7.4(a)5  i
				or ii, if the Department determines that the discharge is likely to contravene
				the Groundwater Quality Standards at N.J.A.C. 7:9C, or may result in violation
				of the Surface Water Quality Standards at N.J.A.C. 7:9B (see N.J.A.C.
				7:14A-4.7, 25.2(a)4 and 25.5).