reglab/statecodes huggingface dataset:
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 373 - THIRD STAGE TREATMENT LAGOON EXEMPTIONS › Subpart C - STREAM INFORMATION › Appendix D - Model Limitations

Current through Register Vol. 48, No. 28, July 12, 2024
The Modified Streeter-Phelps Equation used in this Part
				  should not be construed as a precise predictive model but rather as a means of
				  demonstrating adequate receiving stream assimilative capacity under estimated
				  worst-case conditions. Even for a general application of this type, there are
				  inherent limitations to the model that will preclude its utilization in some
				  instances.
The modified Streeter-Phelps Equation constitutes a steady
				  state, one dimensional model and as such is limited in its application to free
				  flowing stream systems that can be reasonably well represented as steady state,
				  one dimensional systems. Once mixing of the wastewater discharge and natural
				  stream flow is accomplished, there should be minimal vertical or lateral
				  variation (throughout a given stream cross section) of key factors such as
				  waste concentration, temperature, and carbonaceous and nitrogenous bacteria
				  population density. In most free flowing streams in Illinois (even with
				  predominantly pool/riffle morphology) this should not be a limitation. However,
				  lakes, ponds, stream segments impounded by man-made structures or natural
				  impediments, streams with unstable channel characteristics, swamps and marshes
				  are all examples of systems that may not be successfully modeled with the
				  Modified Streeter-Phelps Equation. Likewise, systems with wide variations in
				  temperature, flowrate or organic loading may not reach a steady state condition
				  conducive to model application. The applicant should be aware of these
				  limitations when applying the model to a particular
				  situation.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 374 - DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS › Subpart A - PERMITS › Section 374.101 - Introduction

Current through Register Vol. 48, No. 28, July 12, 2024
These design criteria are to be used by the Illinois
				  Environmental Protection Agency in reviewing 35 Ill. Adm. Code 309, Subpart B
				  permit applications for pressure sewer systems including grinder pump systems
				  and septic tank effluent pumping (STEP) systems.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 374 - DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS › Subpart A - PERMITS › Section 374.102 - Conventional System Preference

Current through Register Vol. 48, No. 28, July 12, 2024
If possible, the development proposed shall be served by a
				  conventional sewer system. A conventional sewer system is defined as gravity
				  sewers or a conventionally designed pumping station.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 374 - DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS › Subpart A - PERMITS › Section 374.103 - System Pressure Maintenance

Current through Register Vol. 48, No. 28, July 12, 2024
The owner or operator of a pressure sewer system shall
				  provide a method of inspection or authorization to assure that users of the
				  system maintain the original design operating pressures of the system when
				  repairing, modifying or replacing any of the pumping equipment on the user's
				  premises.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 374 - DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS › Subpart A - PERMITS › Section 374.104 - Sludge Disposal

Current through Register Vol. 48, No. 28, July 12, 2024
Permits for STEP systems shall not be issued unless the
				  applicant provides satisfactory evidence that adequate facilities are available
				  for the pumping and disposal of septic tank sludge.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 374 - DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS › Subpart B - DESIGN CRITERIA › Section 374.201 - Duplex Pumps

Current through Register Vol. 48, No. 28, July 12, 2024
If grinder pumps are serving more than one building, duplex
				  pumping units shall be required. If the pumps are to be installed for
				  individual buildings, a single pumping unit may be used.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 374 - DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS › Subpart B - DESIGN CRITERIA › Section 374.203 - Valves

Current through Register Vol. 48, No. 28, July 12, 2024
Valve arrangements and connection shall be made so as to
				  allow quick removal and replacement of equipment for maintenance
				  purposes.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 374 - DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS › Subpart B - DESIGN CRITERIA › Section 374.205 - Influent Pumping

Current through Register Vol. 48, No. 28, July 12, 2024
In the STEP systems, pump well influent piping should enter
				  at the bottom of the well to prevent cascading of septic effluent in order to
				  minimize both odor and corrosion.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 374 - DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS › Subpart B - DESIGN CRITERIA › Section 374.207 - Marked Sewer Lines

Current through Register Vol. 48, No. 28, July 12, 2024
Where polyvinyl chloride (PVC) pressure mains are to be
				  installed in the vicinity of similar water supply lines, the sewer line should
				  be clearly marked to prevent possible future
				  cross-connections.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 374 - DESIGN CRITERIA OF PRESSURE SEWER SYSTEMS › Subpart B - DESIGN CRITERIA › Section 374.208 - Alarm Systems

Current through Register Vol. 48, No. 28, July 12, 2024
An alarm system shall be provided in the home where grinder
				  units are installed in the basement to alert the home owner in case of pump
				  malfunction. A visual alarm system shall be provided for those pumping units
				  installed in a separate pumping vault outside of the home.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart A - INTRODUCTION › Section 375.101 - Policy

Current through Register Vol. 48, No. 28, July 12, 2024
This policy provides guidelines for:
a) Determination of water quality impacts
				attributable to combined sewer overflows and treatment plant
				bypasses;
b) Estimation of
				potential water quality improvements;
c) Selection of a combined sewer overflow
				(CSO) control program that can be justified on the basis of local environmental
				conditions and fiscal responsibility;
d) Evaluation and review of discharger's
				submittals pursuant to 35 Ill. Adm. Code
				306.351;
				and
e) Determination of first flush
				as referenced in 35 Ill. Adm. Code
				306.305(a).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart A - INTRODUCTION › Section 375.102 - Definitions

Current through Register Vol. 48, No. 28, July 12, 2024
All definitions in 35 Ill. Adm. Code 301 shall apply here. No
				  incorporation by reference in this Part contains any later amendment or
				  addition.
"Combined Sewer" means a sewer designed and constructed to
				  receive both wastewater and land runoff.
"Dry Weather Flow" means the flowrate consisting of
				  wastewater and non excessive sewer infiltration in the absence of inflow
				  sources attributable to direct precipitation or snowmelt and is not restricted
				  to meteorologic drought conditions. Nonexcessive sewer infiltration is defined
				  at 40 CFR
				  35.2005(1984).
"First Flush" is defined as that volume of water and
				  associated flow rate needed to carry solids or BOD concentrations is excess of
				  the dry weather flow. This volume is shown on the "cross hatched" area in
				  Appendix A.
35 Ill. Adm. Code
				  306.305(a)
				  uses the term "first flush to describe those flows requiring complete
				  treatment. When sewage is flowing through a sewer system at fairly uniform
				  lower velocities, which occur during dry weather conditions, some of the solids
				  present in the waste are deposited in the pipes. In addition, solids and some
				  organic material that may be washed into the combined sewer systems tend to
				  build up on streets, parking lots, etc.
When a storm event occurs, the volume of wastewater carried
				  by the sewer increases and the velocities in the sewer also increase. The high
				  volume of storm water causes material to be washed from the streets into the
				  sewer and the sludge deposited in the sewers to be scoured from the pipes. This
				  material is carried to the sewage treatment plant where it exerts an additional
				  organic load on the biological system and an additional solids load on the
				  physical systems. The maximum impact of this phenonmenon tends to occur at the
				  beginning of a storm event and taper off as the storm continues and there are
				  no additional solids to remove.
"Human Contact Activities" means wading, swimming or any
				  other activity involving partial or total immersion of the human body in the
				  subject waterway whether for recreational or other purpose.
"Wet Weather Flow" means a flowrate condition, elevated above
				  dry weather flow, attributable to land runoff as the result of snowmelt or a
				  precipitation event.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart A - INTRODUCTION › Section 375.103 - Prohibitions

Current through Register Vol. 48, No. 28, July 12, 2024
a) Dry weather
				overflows are expressly prohibited under existing regulations and are not
				eligible for consideration under the provisions of this rule. Combined sewer
				overflow programs that will result in continued or future dry weather overflows
				or treatment plant bypasses will not be approved by the Agency.
b) This policy applies to overflow from
				combined sewer systems and treatment plant bypasses resulting from wet weather
				flow conditions. Overflows from separate sanitary sewers and from portions of
				combined sewer communities served by separate sanitary sewers are not subject
				to this rule.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart B - WATER QUALITY INVESTIGATION › Section 375.201 - Policy

Current through Register Vol. 48, No. 28, July 12, 2024
It is the intent of this policy that water quality
				  investigations be no more extensive than is necessary:
a) to identify the degree of CSO control
				appropriate for a specific community as mutually agreed to by discharger and
				Agency, and
b) to substantiate the
				appropriateness of the proposed control program under the scrutiny of the Board
				in a proceeding pursuant to 35 Ill. Adm. Code 306: Subpart D.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart B - WATER QUALITY INVESTIGATION › Section 375.202 - Phase I - Background Information

Current through Register Vol. 48, No. 28, July 12, 2024
a) A community seeking to pursue alternate
				CSO control requirements under provisions of 35 Ill. Adm. Code 306: Subpart D
				and this Part shall review existing documents including facility planning
				reports, sewer maintenance records, and Discharge Monitoring Reports to
				assemble pertinent background information. To the extent available in existing
				resources, pertinent background information shall include the following:
1) a map of the sewer system depicting:
A) portions of the community served by
				combined sewers and separate sanitary sewers; and
B) location of each overflow and receiving
				water body;
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart B - WATER QUALITY INVESTIGATION › Section 375.203 - Phase II - Preliminary Stream Inspection

Current through Register Vol. 48, No. 28, July 12, 2024
This phase requires a physical inspection of the receiving
				  water body and near stream property. Additionally, any necessary elements
				  missing from the Phase I background report shall be addressed in this step.
				  Factors to be considered include:
a)
				Inspection of stream in and around vicinity of each overflow for sludge
				deposits, sewage related odors, floating debris of sanitary sewage origin, and
				any other visible signs of pollution impact. Inspection techniques shall be
				selected so as to assure maximum reliability of the results including:
1) probing, disturbance and extraction of
				bottom sediments in pools and other quiescent portions of stream to note color,
				texture, odor and other aspects of sediments that are indicative of sewage
				sludge:
2) estimates of extent and
				severity of sludge deposition in terms of depth of deposition, area of stream
				affected and percentage of stream bed within affected area that contains sludge
				deposits; and
3) inspection of
				shoreline vegetation, logjams and other obstructions likely to retain floating
				sewage debris.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart B - WATER QUALITY INVESTIGATION › Section 375.204 - Phase III - Detailed Water Quality Evaluation

Current through Register Vol. 48, No. 28, July 12, 2024
Areas to be addressed in a detailed water quality survey
				  shall include, consistent with 35 Ill. Adm. Code
				  306.361(d):
a) water column chemistry -
1) upstream/downstream and overflow
				sampling;
2) wet weather/dry
				weather sampling;
3) diurnal
				sampling for dissolved oxygen (D.O.);
4) parameters generally will include
				BOD5, suspended solids, volatile suspended solids,
				ammonia. Other parameters may become important depending on the nature of the
				overflow; and
5) other parameters
				as deemed appropriate relative to 35 Ill. Adm. Code
				375.302(a)(8).
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart B - WATER QUALITY INVESTIGATION › Section 375.205 - Special Analysis for Congested Areas

Current through Register Vol. 48, No. 28, July 12, 2024
In small drainage basins receiving combined sewer overflows
				  from collection systems belonging to several separate governing bodies the
				  significance of the aggregate CSO load may well dictate a basin wide evaluation
				  of alternate control levels in lieu of community by community evaluation.
				  Resolution of CSO issues in such basins may require evaluation of all CSO
				  sources concurrently with cooperative data collection efforts involving several
				  communities. This is especially applicable in major metropolitan
				  areas.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart B - WATER QUALITY INVESTIGATION › Section 375.206 - Time Schedule

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Once a water quality investigation is initiated, every effort shall be made to
				expedite each step of the activity, completing the investigation in the
				shortest possible time without compromising the validity of the findings.
				Effective field activities are dependent upon proper seasonal, hydrologic and
				meteorologic conditions which will require flexibility in scheduling.
				Nevertheless the following time table is suggested as a general
				guideline.
b) Phase I - 30 to 60
				days for completion plus 30 to 60 days for Agency review and planning of Phase
				II.
c) Phase II - 30 to 60 days for
				completion plus 30 to 60 days for Agency review and planning of Phase
				III.
d) Phase III - 6 months to 1
				year and generally containing the summer months of June, July and
				August.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart C - ASSESSMENT OF CONTROL OPTIONS › Section 375.301 - Water Quality Evaluation

Current through Register Vol. 48, No. 28, July 12, 2024
It is intended that water quality evaluation performed under
				  Subpart C of this Part will be undertaken in conjunction with or subsequent to
				  first flush analysis and CSO studies consistent with Subpart D. Control options
				  being evaluated shall not be limited to alternatives resulting in full
				  compliance with 35 Ill. Adm. Code
				  306.305;
				  lesser control options of varying degrees shall be evaluated
				  also.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart C - ASSESSMENT OF CONTROL OPTIONS › Section 375.302 - Control Alternatives

Current through Register Vol. 48, No. 28, July 12, 2024
Alternatives resulting in noncompliance with existing water
				  quality standards and requiring regulatory relaxation of water quality
				  standards may also be considered by the discharger. Water quality revisions
				  being considered shall be consistent with the purpose and objectives of the Act
				  and the CWA.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart C - ASSESSMENT OF CONTROL OPTIONS › Section 375.303 - Benefits Assessment

Current through Register Vol. 48, No. 28, July 12, 2024
Benefits shall not be assessed solely on a pound pollutant
				  removed basis but also on instream improvement of a documented pollutional
				  impact or reduction in a public health risk. Acceptable techniques for
				  estimating water quality improvements will vary depending on individual
				  circumstances but may include:
a)
				consideration of receiving water body assimilative capabilities and strategic
				relocation of overflows;
b)
				selection of size of storm to design controls for based on stream hydrograph,
				available dilution, turbulance and velocity under storm conditions and their
				affect on assimilation (since CSO's are dominated by suspended rather than
				soluble pollutants, major emphasis will be placed on prevention of instream
				deposition); and
c) mathematic
				modeling.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart D - FIRST FLUSH DETERMINATION › Section 375.401 - Variables in First Flush Determination

Current through Register Vol. 48, No. 28, July 12, 2024
The intensity and duration of first flush are a function of
				  certain variables including:
a)
				Physical and hydraulic features of the sewer system and tributary
				watershed.
b) Amount of sediment
				accumulated in the sewer system and on impervious surfaces of the
				watershed.
c) Intensity and
				duration of the storm event causing the flushing.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart D - FIRST FLUSH DETERMINATION › Section 375.402 - Conditions for Determination

Current through Register Vol. 48, No. 28, July 12, 2024
For any given sewer system, or portion of a sewer system,
				  first flush volume subject to full treatment requirements of 35 Ill. Adm. Code
				  306.305(a)
				  and associated flow rate shall be determined for the following
				  condition(s):
a) A storm of 1.2 inch
				per hour intensity with a duration of 60 minutes, which approximates a one
				year-one-hour storm for most sections of the state.
b) There shall be sufficient time between the
				storm event chosen to determine first flush and any previous event to allow for
				adequate solids deposition in the sewers and on the streets to demonstrate
				first flush under this Part. In general a ten day period should be
				sufficient.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 375 - COMBINED SEWER OVERFLOW EXCEPTION CRITERIA AND FIRST FLUSH DETERMINATION › Subpart D - FIRST FLUSH DETERMINATION › Section 375.404 - Modeling

Current through Register Vol. 48, No. 28, July 12, 2024
a) If all of the
				overflow locations to be studied cannot be sampled and monitored, or field
				conditions were not available through direct field measurement as described in
				Section
				375.403,
				then other methods, including modeling of section(s) of the study area, shall
				be required to determine first flush. These methods should be used to:
1) Predict the quality and quantity of loads
				and concentrations.
2) Identify
				significant sources.
3) Analyze
				hydraulics of the tributary system.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart A - INTRODUCTION › Section 378.101 - Purpose, Scope and Applicability

Current through Register Vol. 48, No. 28, July 12, 2024
a) The purpose of this Part is to establish
				requirements for determining which National Pollutant Discharge Elimination
				System (NPDES) permit dischargers may cease effluent disinfection on a seasonal
				or year-round basis pursuant to standards established by the Pollution Control
				Board (Board) at 35 Ill. Adm. Code
				302.202,
				302.209,
				302.306
				and
				304.121.
b) This Part shall apply to National
				Pollutant Discharge Elimination System permit dischargers which must comply
				with the fecal coliform effluent standard of 35 Ill. Adm. Code 304.121. This
				Part does not apply to discharges governed by 35 Ill. Adm. Code
				306.305
				or to discharges with fecal coliform limitations imposed by any federal
				regulations pursuant to 35 Ill. Adm. Code
				309.141.
c) The standards established by the Pollution
				Control Board allow that waters unsuitable for primary contact activities,
				unlikely to allow incidental contact due to remoteness from any parks or
				residential areas, and unutilized for public and food processing water supply
				are exempt from fecal coliform water quality standards. National Pollutant
				Discharge Elimination System permit dischargers which affect these waters may
				be eligible for an exemption from 35 Ill. Adm. Code 304.121.
d) National Pollutant Discharge Elimination
				System permit discharges which may prevent protected waters from complying with
				fecal coliform water quality standards must continue to comply with the fecal
				coliform effluent standard of 35 Ill. Adm. Code 304.121. In order to be
				protected, waters must presently support or have physical characteristics to
				support primary contact activities, flow through or adjacent to parks or
				residential areas, or be utilized for public and food processing water
				supply.
e) Exemption determinations
				will include consideration of potential impacts on interstate waters.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart A - INTRODUCTION › Section 378.102 - Definitions

Current through Register Vol. 48, No. 28, July 12, 2024
All terms shall have the meanings set forth in the
				  Environmental Protection Act except, for purposes of this Part, the following
				  definitions apply:
"Act" means the Environmental Protection Act (Ill. Rev. Stat.
				  1987, ch. 1111/2, pars. 1001 et seq., as amended).
"Agency" means Illinois Environmental Protection
				  Agency.
"Board" means Illinois Pollution Control Board.
"NPDES permit" means a permit issued under the National
				  Pollutant Discharge Elimination System under Section 39 of the Act and Section
				  402 of the Clean Water Act, (
				  33 U.S.C.A. Section
				  1251 et seq.).
"Primary contact" means any recreational or other water use
				  in which there is prolonged and intimate contact with the water involving
				  considerable risk of ingesting water in quantities sufficient to pose a
				  significant health hazard, such as swimming and water skiing.
"Residential areas" means any collection of dwellings, such
				  as cities, towns, and subdivisions.
"Year-round" refers to the full twelve months of the
				  year.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart A - INTRODUCTION › Section 378.103 - Application Requirements

Current through Register Vol. 48, No. 28, July 12, 2024
The Agency will consider an exemption from the fecal coliform
				  effluent limitations of 35 Ill. Adm. Code
				  304.121(a)
				  only when the holder of an NPDES permit submits to the Agency a Disinfection
				  Exemption Request. The request, at a minimum, shall demonstrate and document
				  the following:
a) The character of the
				receiving waters pursuant to 35 Ill. Adm. Code
				302.202,
				302.209, and
				302.306
				in accordance with Section
				378.204.
b) The discharge will not cause downstream
				waters to exceed applicable fecal coliform standards pursuant to 35 Ill. Adm.
				Code
				302.209
				and 302.306.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart B - PROTECTED WATER STATUS AND EXEMPTION REQUIREMENTS › Section 378.201 - Year-Round Protected Waters

Current through Register Vol. 48, No. 28, July 12, 2024
Waters utilized for public and food processing water supply
				  must comply with the 2000 per 100 ml fecal coliform standard of 35 Ill. Adm.
				  Code
				  302.306
				  at any intake point on a year-round basis.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart B - PROTECTED WATER STATUS AND EXEMPTION REQUIREMENTS › Section 378.202 - Seasonally Protected Waters

Current through Register Vol. 48, No. 28, July 12, 2024
Waters within the following categories must comply with the
				  200 per 100 ml fecal coliform standard of 35 Ill. Adm. Code
				  302.209(a)
				   during the months of May through
				  October:
a) All large streams and
				rivers which support primary contact activities;
b) All lakes and ponds which support primary
				contact activity;
c) Pooled areas
				of small streams where depth and access allow for primary contact activities;
				or
d) Streams which flow through or
				adjacent to parks or residential areas and are likely to create a risk of
				incidental or accidental contact.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart B - PROTECTED WATER STATUS AND EXEMPTION REQUIREMENTS › Section 378.203 - Unprotected Waters

Current through Register Vol. 48, No. 28, July 12, 2024
Unprotected waters are not required to comply with the fecal
				  coliform standards of 35 Ill. Adm. Code
				  302.209
				  and
				  302.306.
				  Characteristics of unprotected waters include but are not limited to the
				  following, and waters must possess one or more of these characteristics to be
				  classified as unprotected waters:
a)
				Waters with average depths of two feet or less and no pronounced deep pools
				during the summer season;
b) Waters
				containing physical obstacles sufficient to prevent access or primary contact
				activities; or
c) Waters with
				adjacent land uses sufficient to discourage primary contact
				activities.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart B - PROTECTED WATER STATUS AND EXEMPTION REQUIREMENTS › Section 378.204 - Assessment of Waters for Protected Status

Current through Register Vol. 48, No. 28, July 12, 2024
a) The permittee shall conduct surveys
				necessary to determine whether affected waters currently support or have the
				potential to support primary contact activities. The permittee shall determine
				and document the following:
1) Whether the
				water body segments have potential for primary contact use. For example, such
				segments must have water depths that would ordinarily permit swimming during
				the months of May through October;
2) Whether the water body segments are free
				of obstacles to primary contact activities, such as unsuitable access to the
				streambank or existence of logs, log jams or other debris which render the
				water body hazardous or unattractive to swimmers;
3) Where the adjacent land use to water body
				segments would discourage primary contact activities; or
4) Whether the water bodies are being used
				for primary contact activities. The permittee shall make inquiries of local
				residents, land owners, or local law enforcement officials. The permittee shall
				also make a list of all downstream access areas and contact custodians to
				determine the uses and water-based activities of the water body segment in
				question.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart C - FECAL COLIFORM DIE-OFF MODEL › Section 378.301 - Die-off Equation

Current through Register Vol. 48, No. 28, July 12, 2024
a) The
				permittee shall model the die-off of fecal coliform from its discharge using
				the first-order die-off equation provided in Appendix A of this Part. Appendix
				B of this Part provides step-by-step guidance for the application of this
				equation. Appendices C through E of this Part provide further assistance in the
				application of the equation.
b) The
				die-off equation predicts levels of fecal coliform at points downstream from
				the fecal coliform source. The equation includes variables to reflect upstream
				levels of fecal coliform, changes in dilution and travel time, and other
				stream-specific parameters.
c) In
				modeling the effects of its discharge, the permittee shall collect additional
				stream-specific information as necessary to demonstrate compliance with fecal
				coliform water quality standards. The amount of field data necessary to utilize
				the equation as specified in Appendix B of this Part will depend on the
				proximity of the source to protected waters and the nature of the receiving
				waters. Additional field data collected will produce more accurate prediction
				of downstream levels of fecal coliform.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart C - FECAL COLIFORM DIE-OFF MODEL › Section 378.302 - Cumulative Effects of Multiple Sources

Current through Register Vol. 48, No. 28, July 12, 2024
a) When modeling fecal coliform die-off, the
				permittee must account for contributions of additional downstream sources.
				Requests for exemption will be denied when die-off modeling indicates that the
				combined effect of multiple sources will lead to fecal coliform water quality
				violations of 35 Ill. Adm. Code
				302.209
				or
				302.306.
b) In reviewing any request for exemption,
				the Agency shall re-examine previously modified NPDES permits when modeling
				indicates that there is a potential for fecal coliform water quality violations
				of 35 Ill. Adm. Code
				302.209
				or
				302.306
				due to the combined effects of:
1) the
				source's modified fecal coliform limits;
2) the permittee's modified fecal coliform
				limits; and
3) any new
				source.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart C - FECAL COLIFORM DIE-OFF MODEL › Appendix A - First Order Die-off Equation

Current through Register Vol. 48, No. 28, July 12, 2024
The first order die-off equation provides a method of
				  estimating fecal coliform die-off in a receiving water as a function of
				  time:
Click here to view
				  image
Definition and discussion of terms:
Nt is the predicted
				  concentration of fecal coliform at travel time t downstream; units = #/100
				  ml.
Nu is the fecal coliform
				  concentration upstream of the source being modeled; units = #/100 ml.
This term will often be negligible relative to the
				  contribution of the source.
No is the fecal coliform
				  concentration in the effluent of the source; units = #/100 ml.
d is the ratio of the receiving water discharge
				  directly upstream of the source to the discharge of the source; no
				  units.
k is the first order die-off rate constant; units
				  = 1/hours. The value of
k can vary as a function of receiving water
				  characteristics, including temperature, exposure to sunlight, and
				  turbidity.
t is the travel time to the point of interest
				  below the source; units = hours.
e = 2.718
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 378 - EFFLUENT DISINFECTION EXEMPTIONS › Subpart C - FECAL COLIFORM DIE-OFF MODEL › Appendix E - Field Assessment of Die-off Rate Constant

Current through Register Vol. 48, No. 28, July 12, 2024
Assessing the fecal coliform die-off rate constant (k) below
				  a source is a fairly straight-forward process. It is important, however, that
				  sampling be conducted under appropriate conditions. The following guidelines
				  should be observed in planning and conducting the necessary field work.
a) Assessment of k must be conducted on an
				  undisinfected effluent.
b) Assessment of k for warm months (May thru
				  October) should be conducted when water temperature is at least 20 C. For cold
				  months (November thru April), water temperature should be less than 10
				  C.
c) Stream discharge and effluent discharge must be
				  relatively steady. Precipitation events within the past 24 hours or during
				  sampling should be avoided. The dilution ratio should be such that initial
				  fecal coliform levels will be well above background levels. Stream velocity
				  should average 0.2 feet per second at the minimum.
d) Fecal coliform levels in the undisinfected
				  effluent, upstream (dilution) waters, and significant downstream tributaries
				  and sources should be assessed for several days prior to conducting the k
				  study. Extreme variability in these levels should be avoided if
				  possible.
e) At least 5 downstream sampling stations must be
				  established. The first station should be the closest point where it is likely
				  that the effluent has completely mixed with the stream. Other sites should be
				  selected with regard to location of downstream tributaries and fecal coliform
				  sources and convenience of access, and should be representative of typical
				  stream reaches. A typical example might include stations at 1, 3, 5, 10, 15 and
				  25 miles downstream of the source.
f) Stream discharge should be measured at each
				  station. Information necessary to calculate travel time between sites must also
				  be collected (this is typically done via the Manning equation, see Appendix
				  D).
g) Samples should be collected during the daylight
				  hours in one day if at all possible. Agency protocol for fecal coliform
				  sampling requires that samples be iced immediately and transported to a
				  laboratory for analysis within 6 hours.
h) Resources permitting, it is preferred that at
				  least 2 warm weather and 2 cold weather studies be conducted. Values of k
				  should be calculated using the die-off equation for each stream reach. An
				  overall average for each study should also be computed.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart A - INTRODUCTION › Section 380.100 - Purpose

Current through Register Vol. 48, No. 28, July 12, 2024
a) These rules set
				forth requirements and procedures applicable to wastewater treatment works to
				ensure the treatment works is supervised by a wastewater operator certified
				under this Part.
b) These rules
				contain the procedures and classifications necessary for certification of
				operators for wastewater treatment works.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart A - INTRODUCTION › Section 380.110 - Definitions from Other Parts

Current through Register Vol. 48, No. 28, July 12, 2024
Unless otherwise specified in Section 380.105, all
				  definitions found in the Act and 35 Ill. Adm. Code: Subtitle C, Chapter I shall
				  apply to this Part.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart A - INTRODUCTION › Section 380.115 - Facility Groups

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				Domestic and industrial wastewater treatment works and pretreatment works shall
				be grouped as follows:
1) All publicly owned
				treatment works and domestic wastewater treatment works not owned by an
				industry shall be grouped as follows:
A)
				Group 1 shall consist of all wastewater treatment works having a 1.0 MGD DAF or
				greater, excluding lagoon systems and primary treatment systems.
B) Group 2 shall consist of activated sludge
				systems having a DAF of less than 1.0 MGD.
C) Group 3 shall consist of fixed film
				processes, recirculating sand filter systems and Imhoff tank systems having a
				DAF of less than 1.0 MGD, and all primary treatment systems.
D) Group 4 shall consist of lagoon treatment
				systems and septic tank systems permitted by the Agency.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart A - INTRODUCTION › Section 380.120 - Certification Classification

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				The Agency may issue a Certificate of Technical Competency for each facility
				group identified in Section
				380.115.
1) A Class 1 Certificate of Technical
				Competency corresponds to a Group 1 facility.
2) A Class 2 Certificate of Technical
				Competency corresponds to a Group 2 facility.
3) A Class 3 Certificate of Technical
				Competency corresponds to a Group 3 facility.
4) A Class 4 Certificate of Technical
				Competency corresponds to a Group 4 facility.
5) A Class K Certificate of Technical
				Competency corresponds to a Group K facility.
6) A Class R Certificate of Technical
				Competency corresponds to a Group R facility.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart A - INTRODUCTION › Section 380.125 - Prior Certifications

Current through Register Vol. 48, No. 28, July 12, 2024
A Class 7 Industrial Certificate issued prior to February 15,
				  1985, shall be the equivalent to a Class K Certificate and shall expire on July
				  1, 2022.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart B - CHIEF WASTEWATER OPERATOR › Section 380.200 - Required Supervision

Current through Register Vol. 48, No. 28, July 12, 2024
a) A
				Group 1 facility requires a Class 1 Certificate of Technical
				Competency.
b) A Group 2 facility
				requires a Class 1 or Class 2 Certificate of Technical Competency.
c) A Group 3 facility requires a Class 1,
				Class 2 or Class 3 Certificate of Technical Competency.
d) A Group 4 facility requires Class 1, Class
				2, Class 3 or Class 4 Certificate of Technical Competency
e) Group K facility requires a Class K
				Certificate of Technical Competency.
f) Group R facility requires a Class R
				Certificate of Technical Competency.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart B - CHIEF WASTEWATER OPERATOR › Section 380.205 - Chief Wastewater Operator Requirement

Current through Register Vol. 48, No. 28, July 12, 2024
a) Except as provided in Section 380.210,
				every wastewater treatment or pretreatment works for which a permit is required
				by 35 Ill. Adm. Code 309 shall have on its operational staff and shall
				designate to the Agency in writing one Chief Wastewater Operator who directly
				supervises the use or operation of the facility.
b) The Chief Wastewater Operator is jointly
				accountable with the owner for the proper operation of the facility.
c) Each Chief Wastewater Operator shall:
1) hold a Certificate of Technical Competency
				of the required class for the operation of the wastewater treatment works or
				pretreatment works;
2) directly
				supervise the operation of the wastewater treatment works or pretreatment
				works;
3) be responsible for
				process control decisions at a wastewater treatment works; and
4) submit all required reports to the
				Agency.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart B - CHIEF WASTEWATER OPERATOR › Section 380.210 - Exceptions

Current through Register Vol. 48, No. 28, July 12, 2024
a) A wastewater
				treatment works is not required to have a Chief Wastewater Operator on its
				operational staff if the wastewater treatment works is operated as part of a
				public water supply, treats waste generated only by that supply, and has
				designated a Responsible Operator in Charge pursuant to the Public Water Supply
				Operations Act [ 415 ILCS 45 ].
b)
				Collection systems are not required to be under the direct supervision of a
				Chief Wastewater Operator.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart B - CHIEF WASTEWATER OPERATOR › Section 380.215 - Agency Notification

Current through Register Vol. 48, No. 28, July 12, 2024
a) The
				owner and the Chief Wastewater Operator must file a signed statement
				identifying the Chief Wastewater Operator on forms provided by the
				Agency.
b) Whenever a Chief
				Wastewater Operator begins or ceases employment with a wastewater treatment
				works or pretreatment works, the Chief Wastewater Operator and the owner shall
				notify the Agency in writing within 30 days.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart C - BOARD OF CERTIFICATION › Section 380.300 - Purpose

Current through Register Vol. 48, No. 28, July 12, 2024
A Board of Certification will advise the Agency on
				  certification actions.
(Recodified from Section 380.301 to Section 380.300 at 31
				  Ill. Reg. 10532)
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart C - BOARD OF CERTIFICATION › Section 380.305 - Composition

Current through Register Vol. 48, No. 28, July 12, 2024
The Board of Certification shall consist of:
a) One Agency employee who shall be a
				non-voting member,
b) One certified
				operator from each Section,
c) One
				representative of municipal government,
d) One representative of industry,
e) One representative of sanitary
				districts,
f) Two representatives
				from the Metropolitan Sanitary District of Greater Chicago, one of which shall
				be a certified operator.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart C - BOARD OF CERTIFICATION › Section 380.310 - Chairman

Current through Register Vol. 48, No. 28, July 12, 2024
The Board of Certification will elect a Chairman annually
				  from its members. The Agency representative will not be eligible for that
				  position.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart C - BOARD OF CERTIFICATION › Section 380.315 - Selection and Terms of Office

Current through Register Vol. 48, No. 28, July 12, 2024
a)
				The wastewater operators shall select a certified operator from their Section
				to serve as their representative on the Board of Certification.
1) The representative from the Central
				Section shall be selected during 1981 and every three years
				thereafter.
2) The representatives
				from the Northeast and Southern Sections shall be selected during 1982 and
				every three years thereafter.
3)
				The representative from the Northwest Section shall be selected during 1983 and
				every three years thereafter.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart C - BOARD OF CERTIFICATION › Section 380.320 - Alternates

Current through Register Vol. 48, No. 28, July 12, 2024
a) Alternate
				representatives shall be selected at the same time as the representatives are
				selected. The alternate's term of office shall be concurrent with that of the
				selected representative.
b) An
				alternate shall perform the duties of the representative to the Board of
				Certification when that person does not perform them.
(Recodified from Section
				  380.305 to
				  Section 380.320 at 31 Ill. Reg. 10532)
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart C - BOARD OF CERTIFICATION › Section 380.325 - Vacancies

Current through Register Vol. 48, No. 28, July 12, 2024
a) If a
				representative or alternate is not selected by the time specified in Sections
				380.315
				and
				380.320,
				the Board of Certification shall appoint a representative.
b) If a representative vacates a position on
				the Board of Certification, the alternate shall complete the term of office. If
				the alternate does not complete the term of office, the Board of Certification
				shall appoint a representative to complete the term.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart C - BOARD OF CERTIFICATION › Section 380.330 - Meetings

Current through Register Vol. 48, No. 28, July 12, 2024
a) The Chairman of
				the Board of Certification shall convene two regular meetings
				annually.
b) Five voting
				representatives shall constitute a quorum. No official action shall be taken
				without agreement of five voting members. A special meeting may be called upon
				agreement of a quorum.
c) Written
				notice must be given at least ten days in advance of meetings except in
				emergency situations.
Illinois Administrative Code › Title 35 - ENVIRONMENTAL PROTECTION › Part 380 - PROCEDURE FOR THE CERTIFICATION OF OPERATORS OF WASTEWATER TREATMENT WORKS › Subpart C - BOARD OF CERTIFICATION › Section 380.335 - Duties

Current through Register Vol. 48, No. 28, July 12, 2024
a) The duties of
				the Board of Certification members shall be:
1) To solicit the opinions and comments of
				those persons they represent on matters pertaining to certification and to
				report them to the Agency and to the Board;
2) To provide advice to the Agency regarding
				certification policy;
3) To report
				Board of Certification activities and decisions to those they represent;
				and
4) To attend Board of
				Certification meetings.