reglab/statecodes huggingface dataset:
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 2 - WATER QUALITY STANDARDS FOR NON-WOTUS PROTECTED SURFACE WATERS › Table 17 - Chronic Criteria for Total Ammonia (in mg/L, as N) for Aquatic and Wildlife Coldwater AZ, Unionid Mussels Absent

Current through Register Vol. 30, No. 28, July 12, 2024
For the Aquatic and Wildlife Coldwater uses, unionids will be
				  assumed to be present unless a study is performed demonstrating that they are
				  absent and there is no historic evidence of their presence, or hydrologic
				  modification has altered the flow regime in a way that would prevent their
				  reestablishment.
pH
Temperature
							 (°C)
0-14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
6.5
7.3
7.3
7.3
7.3
7.3
7.3
7.3
7.3
7
6.6
6.2
5.8
5.4
5.1
4.8
4.5
4.2
6.6
7.2
7.2
7.2
7.2
7.2
7.2
7.2
7.2
6.9
6.5
6.1
5.7
5.4
5
4.7
4.4
4.1
6.7
7.1
7.1
7.1
7.1
7.1
7.1
7.1
7.1
6.8
6.4
6
5.6
5.3
4.9
4.6
4.3
4.1
6.8
6.9
6.9
6.9
6.9
6.9
6.9
6.9
6.9
6.6
6.2
5.8
5.5
5.1
4.8
4.5
4.2
4
6.9
6.7
6.7
6.7
6.7
6.7
6.7
6.7
6.7
6.5
6.1
5.7
5.3
5
4.7
4.4
4.1
3.9
7
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.5
6.2
5.8
5.5
5.1
4.8
4.5
4.2
4
3.7
7.1
6.2
6.2
6.2
6.2
6.2
6.2
6.2
6.2
6
5.6
5.3
4.9
4.6
4.3
4.1
3.8
3.6
7.2
5.9
5.9
5.9
5.9
5.9
5.9
5.9
5.9
5.7
5.3
5
4.7
4.4
4.1
3.9
3.6
3.4
7.3
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.6
5.4
5
4.7
4.4
4.1
3.9
3.6
3.4
3.2
7.4
5.2
5.2
5.2
5.2
5.2
5.2
5.2
5.2
5
4.7
4.4
4.1
3.9
3.6
3.4
3.2
3
7.5
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.8
4.6
4.3
4.1
3.8
3.6
3.3
3.1
2.9
2.8
7.6
4.4
4.4
4.4
4.4
4.4
4.4
4.4
4.4
4.2
3.9
3.7
3.5
3.2
3
2.9
2.7
2.5
7.7
3.9
3.9
3.9
3.9
3.9
3.9
3.9
3.9
3.8
3.5
3.3
3.1
2.9
2.7
2.6
2.4
2.3
7.8
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.5
3.4
3.2
3
2.8
2.6
2.4
2.3
2.1
2
7.9
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3.1
3
2.8
2.6
2.4
2.3
2.1
2
1.9
1.8
8
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.7
2.6
2.4
2.3
2.1
2
1.9
1.7
1.6
1.5
8.1
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.3
2.2
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
8.2
2
2
2
2
2
2
2
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
8.3
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
0.96
8.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.3
1.2
1.1
1.1
0.99
0.93
0.87
0.81
8.5
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.2
1.1
1
0.95
0.89
0.83
0.78
0.73
0.69
8.6
1
1
1
1
1
1
1
1
0.97
0.91
0.85
0.8
0.75
0.7
0.66
0.62
0.58
8.7
0.86
0.86
0.86
0.86
0.86
0.86
0.86
0.86
0.82
0.77
0.72
0.68
0.64
0.6
0.56
0.52
0.49
8.8
0.73
0.73
0.73
0.73
0.73
0.73
0.73
0.73
0.7
0.65
0.61
0.58
0.54
0.51
0.47
0.44
0.42
8.9
0.62
0.62
0.62
0.62
0.62
0.62
0.62
0.62
0.6
0.56
0.52
0.49
0.46
0.43
0.41
0.38
0.36
9
0.54
0.54
0.54
0.54
0.54
0.54
0.54
0.54
0.51
0.48
0.45
0.42
0.4
0.37
0.35
0.33
0.31
Click here to
							 view
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Section R18-11-301 - Definitions

Current through Register Vol. 30, No. 28, July 12, 2024
The terms in this Article have the following meanings:
"Direct reuse" has the meaning prescribed in
				  R18-9-701(1).
"Disinfection" means a treatment process that uses oxidants,
				  ultraviolet light, or other agents to kill or inactivate pathogenic organisms
				  in wastewater.
"Filtration" means a treatment process that removes
				  particulate matter from wastewater by passage through porous media.
"Gray water" means wastewater, collected separately from a
				  sewage flow, that originates from a clothes washer, bathtub, shower, or sink,
				  but it does not include wastewater from a kitchen sink, dishwasher, or a
				  toilet.
"Industrial wastewater" means wastewater generated from an
				  industrial process.
"Landscape impoundment" means a manmade lake, pond, or
				  impoundment of reclaimed water where swimming, wading, boating, fishing, and
				  other water-based recreational activities are prohibited. A landscape
				  impoundment is created for storage, landscaping, or for aesthetic purposes
				  only.
"NTU" means nepholometric turbidity unit.
"On-site wastewater treatment facility" has the meaning
				  prescribed in A.R.S. §
									49-201(24).
"Open access" means that access to reclaimed water by the
				  general public is uncontrolled.
"Reclaimed water" has the meaning prescribed in A.R.S. §
									49-201(31).
"Recreational impoundment" means a manmade lake, pond, or
				  impoundment of reclaimed water where boating or fishing is an intended use of
				  the impoundment. Swimming and other full-body recreation activities (for
				  example, water-skiing) are prohibited in a recreational impoundment.
"Restricted access" means that access to reclaimed water by
				  the general public is controlled.
"Secondary treatment" means a biological treatment process
				  that achieves the minimum level of effluent quality defined by the federal
				  secondary treatment regulation at 40 CFR § 133.102.
"Sewage" means untreated wastes from toilets, baths, sinks,
				  lavatories, laundries, and other plumbing fixtures in places of human
				  habitation, employment, or recreation.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Section R18-11-302 - Applicability

Current through Register Vol. 30, No. 28, July 12, 2024
This Article applies to the direct reuse of reclaimed water,
				  except for:
1. The direct reuse of
				gray water, or
2. The direct reuse
				of reclaimed water from an onsite wastewater treatment facility regulated by a
				general Aquifer Protection Permit under 18 A.A.C. 9, Article 3.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Section R18-11-303 - Class A+ Reclaimed Water

Current through Register Vol. 30, No. 28, July 12, 2024
A.
				Class A+ reclaimed water is wastewater that has undergone secondary treatment,
				filtration, nitrogen removal treatment, and disinfection. Chemical feed
				facilities to add coagulants or polymers are required to ensure that filtered
				effluent before disinfection complies with the 24-hour average turbidity
				criterion prescribed in subsection (B)(1). Chemical feed facilities may remain
				idle if the 24-hour average turbidity criterion in (B)(1) is achieved without
				chemical addition.
B. An owner of a
				facility shall ensure that:
1. The turbidity
				of Class A+ reclaimed water at a point in the wastewater treatment process
				after filtration and immediately before disinfection complies with the
				following:
a. The 24-hour average turbidity
				of filtered effluent is two NTUs or less, and
b. The turbidity of filtered effluent does
				not exceed five NTUs at any time.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Section R18-11-304 - Class A Reclaimed Water

Current through Register Vol. 30, No. 28, July 12, 2024
A.
				Class A reclaimed water is wastewater that has undergone secondary treatment,
				filtration, and disinfection. Chemical feed facilities to add coagulants or
				polymers are required to ensure that filtered effluent before disinfection
				complies with the 24-hour average turbidity criterion prescribed in subsection
				(B)(1). Chemical feed facilities may remain idle if the 24-hour average
				turbidity criterion in subsection (B)(1) is achieved without chemical
				addition.
B. An owner of a facility
				shall ensure that:
1. The turbidity of Class
				A reclaimed water at a point in the wastewater treatment process after
				filtration and immediately before disinfection complies with the following:
a. The 24-hour average turbidity of filtered
				effluent is two NTUs or less, and
b. The turbidity of filtered effluent does
				not exceed five NTUs at any time.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Section R18-11-305 - Class B+ Reclaimed Water

Current through Register Vol. 30, No. 28, July 12, 2024
A.
				Class B+ reclaimed water is wastewater that has undergone secondary treatment,
				nitrogen removal treatment, and disinfection.
B. An owner of a facility shall ensure that:
1. Class B+ reclaimed water meets the
				following criteria after disinfection treatment and before discharge to a
				reclaimed water distribution system:
a. The
				concentration of fecal coliform organisms in four of the last seven daily
				reclaimed water samples is less than 200 / 100 ml.
b. The single sample maximum concentration of
				fecal coliform organisms in a reclaimed water sample is less than 800 / 100
				ml.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Section R18-11-306 - Class B Reclaimed Water

Current through Register Vol. 30, No. 28, July 12, 2024
A.
				Class B reclaimed water is wastewater that has undergone secondary treatment
				and disinfection.
B. An owner of a
				facility shall ensure that Class B reclaimed water meets the following criteria
				after disinfection treatment and before discharge to a reclaimed water
				distribution system:
1. The concentration of
				fecal coliform organisms in four of the last seven daily reclaimed water
				samples is less than 200 / 100 ml.
2. The single sample maximum concentration of
				fecal coliform organisms in a reclaimed water sample is less than 800 / 100
				ml.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Section R18-11-307 - Class C Reclaimed Water

Current through Register Vol. 30, No. 28, July 12, 2024
A.
				Class C reclaimed water is wastewater that has undergone secondary treatment in
				a series of wastewater stabilization ponds, including aeration, with or without
				disinfection.
B. The owner of a
				facility shall ensure that:
1. The total
				retention time of Class C reclaimed water in wastewater stabilization ponds is
				at least 20 days.
2. Class C
				reclaimed water meets the following criteria after treatment and before
				discharge to a reclaimed water distribution system:
a. The concentration of fecal coliform
				organisms in four of the last seven reclaimed water samples taken is less than
				1000 / 100 ml.
b. The single sample
				maximum concentration of fecal coliform organisms in a reclaimed water sample
				is less than 4000 / 100 ml.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Section R18-11-308 - Industrial Reuse

Current through Register Vol. 30, No. 28, July 12, 2024
A. The
				reclaimed water quality requirements for the following direct reuse
				applications are industry-specific and shall be determined by the Department on
				a case-by-case basis in a reclaimed water permit issued by the Department under
				18 A.A.C. 9, Article 7:
1. Direct reuse of
				industrial wastewater containing sewage.
2. Direct reuse of industrial wastewater for
				the production or processing of any crop used as human or animal
				food.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Section R18-11-309 - Reclaimed Water Quality Standards for an Unlisted Type of Direct Reuse

Current through Register Vol. 30, No. 28, July 12, 2024
A. The Department
				may prescribe in an individual reclaimed water permit issued under 18 A.A.C. 9,
				Article 7, reclaimed water quality requirements for a type of direct reuse not
				listed in Table A. Before permitting a direct reuse of reclaimed water not
				listed in Table A, the Department shall, using its best professional judgment,
				determine and require compliance with reclaimed water quality requirements
				needed to protect public health and the environment.
B. Department may determine that Class A+, A,
				B+, B, or C reclaimed water is appropriate for a new type of direct
				reuse.
C. The Department shall
				consider the following factors when prescribing reclaimed water quality
				requirements for a new type of direct reuse:
1. The risk to public health;
2. The degree of public access to the site
				where the reclaimed water is reused and human exposure to the reclaimed
				water;
3. The level of treatment
				necessary to ensure that the reclaimed water is aesthetically
				acceptable;
4. The level of
				treatment necessary to prevent nuisance conditions;
5. Specific water quality requirements for
				the intended type of direct reuse;
6. The means of application of the reclaimed
				water;
7. The degree of treatment
				necessary to avoid a violation of surface water quality standards or aquifer
				water quality standards;
8. The
				potential for improper or unintended use of the reclaimed water;
9. The reuse guidelines, criteria, or
				standards adopted or recommended by the U.S. Environmental Protection Agency or
				other federal or state agencies that apply to the new type of direct reuse;
				and
10. Similar wastewater
				reclamation experience of reclaimed water providers in the United
				States.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 3 - RECLAIMED WATER QUALITY STANDARDS › Table A - Minimum Reclaimed Water Quality Requirements for Direct Reuse

Current through Register Vol. 30, No. 28, July 12, 2024
Type of Direct Reuse
Minimum Class of Reclaimed Water
						  Required
Irrigation of food crops
A
Recreational impoundments
A
Residential landscape irrigation
A
Schoolground landscape
						  irrigation
A
Open access landscape irrigation
A
Toilet and urinal flushing
A
Fire protection systems
A
Spray irrigation of an orchard
						  or vineyard
A
Commercial closed loop air
						  conditioning systems
A
Vehicle and equipment washing
						  (does not include self-service vehicle washes)
A
Snowmaking
A
Surface irrigation of an orchard
						  or vineyard
B
Golf course irrigation
B
Restricted access landscape
						  irrigation
B
Landscape impoundment
B
Dust control
B
Soil compaction and similar
						  construction activities
B
Pasture for milking animals
B
Livestock watering (dairy
						  animals)
B
Concrete and cement mixing
B
Materials washing and sieving
B
Street cleaning
B
Pasture for non-dairy animals
C
Livestock watering (non-dairy
						  animals)
C
Irrigation of sod farms
C
Irrigation of fiber, seed,
						  forage, and similar crops
C
Silviculture
C
Note: Nothing in this Article prevents a wastewater treatment
				  plant from using a higher quality reclaimed water for a type of direct reuse
				  than the minimum class of reclaimed water listed in Table A. For example, a
				  wastewater treatment plant may provide Class A reclaimed water for a type of
				  direct reuse where Class B or Class C reclaimed water is
				  acceptable.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 4 - AQUIFER WATER QUALITY STANDARDS › Section R18-11-401 - Definitions

Current through Register Vol. 30, No. 28, July 12, 2024
In addition to the definitions contained in A.R.S.
				  §§
									49-101 and
				  49-201,
				  the terms of this Article shall have the following meanings:
1. "Beta particle and photon radioactivity from man-made
				  radionuclides" means all radionuclides emitting beta particles or photons,
				  except Thorium-232, Uranium-235, Uranium-238 and their progeny.
2. "Dose equivalent" means the product of the absorbed dose
				  from ionizing radiation and such factors as account for differences in
				  biological effectiveness due to the type of radiation and its distribution in
				  the body as specified by the International Commission on Radiological Units and
				  Measurements.
3. "Drinking water protected use" means the protection and
				  maintenance of aquifer water quality for human consumption.
4. "Gross alpha particle activity" means the total
				  radioactivity due to alpha particle emission as inferred from measurements on a
				  dry sample.
5. "Mg/l" means milligrams per liter.
6. "Millirem" means 1/1000 of a rem. A rem means the unit of
				  dose equivalent from ionizing radiation to the total body or any internal organ
				  or organ system.
7. "Non-drinking water protected use" means the protection
				  and maintenance of aquifer water quality for a use other than for human
				  consumption.
8. "pCi" means picocurie, or the quantity of radioactive
				  material producing 2.22 nuclear transformations per minute.
9. "Total trihalomethanes" means the sum of the
				  concentrations of the following trihalomethane compounds: trichloromethane
				  (chloroform), dibromo-chloromethane, bromodichloromethane and tribromo-methane
				  (bromoform).
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 4 - AQUIFER WATER QUALITY STANDARDS › Section R18-11-403 - Analytical Methods

Current through Register Vol. 30, No. 28, July 12, 2024
Analysis of a sample to determine compliance with an aquifer
				  water quality standard shall be in accordance with an analytical method
				  specified in A.A.C. Title 9, Chapter 14, Article 6 or an alternative analytical
				  method that is approved by the Director of the Arizona Department of Health
				  Services pursuant to A.A.C.
				  R9-14-610(C).
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 4 - AQUIFER WATER QUALITY STANDARDS › Section R18-11-404 - Laboratories

Current through Register Vol. 30, No. 28, July 12, 2024
A test result from a sample taken to determine compliance
				  with an aquifer water quality standard shall be valid only if the sample has
				  been analyzed by a laboratory that is licensed by the Arizona Department of
				  Health Services for the analysis performed.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 4 - AQUIFER WATER QUALITY STANDARDS › Section R18-11-405 - Narrative Aquifer Water Quality Standards

Current through Register Vol. 30, No. 28, July 12, 2024
A. A discharge shall not cause a pollutant to
				be present in an aquifer classified for a drinking water protected use in a
				concentration which endangers human health.
B. A discharge shall not cause or contribute
				to a violation of a water quality standard established for a navigable water of
				the state.
C. A discharge shall not
				cause a pollutant to be present in an aquifer which impairs existing or
				reasonably foreseeable uses of water in an aquifer.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 4 - AQUIFER WATER QUALITY STANDARDS › Section R18-11-407 - Aquifer Water Quality Standards in Reclassified Aquifers

Current through Register Vol. 30, No. 28, July 12, 2024
A. All aquifers in
				the state are classified for drinking water protected use except for aquifers
				which are reclassified to a non-drinking water protected use pursuant to A.R.S.
				§
									49-224 and A.A.C.
				R18-11-503.
B. Aquifer water quality standards for
				drinking water protected use apply to reclassified aquifers except where
				expressly superseded by aquifer water quality standards adopted pursuant to
				subsection (C) of this Section.
C.
				The Director shall adopt, by rule, aquifer water quality standards for
				reclassified aquifers within one year of the date of the order reclassifying
				the aquifer to a nondrinking water protected use. The Director shall adopt
				aquifer water quality standards for reclassified aquifers only for pollutants
				that are specifically identified in a petition for reclassification as
				prescribed by A.R.S. §
									49-223(E)  and
				A.A.C. R18-11-503(B).
				Aquifer water quality standards for reclassified aquifers shall be sufficient
				to protect the use of the reclassified aquifer.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 4 - AQUIFER WATER QUALITY STANDARDS › Section R18-11-408 - Petition for Adoption of a Numeric Aquifer Water Quality Standard

Current through Register Vol. 30, No. 28, July 12, 2024
A. Any person may
				petition the Director to adopt, by rule, a numeric aquifer water quality
				standard for a pollutant for which no numeric aquifer water quality standard
				exists.
B. Petitions for adoption
				of a numeric aquifer water quality standard shall be filed with the Department
				and shall comply with the requirements applicable to petitions for rule
				adoption as provided by A.R.S. §
									41-1033
				and A.A.C.
				R18-1-302,
				except as otherwise provided by A.R.S. §
									49-223
				or this Section.
C. In addition to
				the requirements of A.A.C. R18-1-302, a petition for rule adoption to establish
				a numeric aquifer water quality standard shall include specific reference to:
1. Technical information that the pollutant
				is a toxic pollutant.
2. Technical
				information upon which the Director reasonably may base the establishment of a
				numeric aquifer water quality standard.
3. Evidence that the pollutant that is the
				subject of the petition is or may in the future be present in an aquifer or
				part of an aquifer that is classified for drinking water protected use.
				Evidence may include, but is not limited to, any of the following:
a. A laboratory analysis of a water sample by
				a laboratory licensed by the Arizona Department of Health Services which
				indicates the presence of the pollutant in the aquifer.
b. A hydrogeological study which demonstrates
				that the pollutant that is the subject of the petition may be present in an
				aquifer in the future. The hydrogeological study shall include the following:
i. A description of the use that results in a
				discharge of the pollutant that is the subject of the petition.
ii. A description of the mobility of the
				pollutant in the vadose zone and in the aquifer.
iii. A description of the persistence of the
				pollutant in the vadose zone and in the aquifer.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 5 - AQUIFER BOUNDARY AND PROTECTED USE CLASSIFICATION › Section R18-11-501 - Definitions

Current through Register Vol. 30, No. 28, July 12, 2024
In addition to the definitions contained in A.R.S. §
									49-201,
				  the words and phrases of this Article shall have the following meaning:
1. "Drinking water protected use" means the protection and
				  maintenance of aquifer water quality for human consumption.
2. "Hardrock areas containing little or no water" means areas
				  of igneous or metamorphic rock which do not yield usable quantities of
				  water.
3. "Nondrinking water protected use" means the protection and
				  maintenance of aquifer water quality for a use other than human
				  consumption.
4. "Usable quantities" means five gallons of water per
				  day.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 5 - AQUIFER BOUNDARY AND PROTECTED USE CLASSIFICATION › Section R18-11-502 - Aquifer Boundaries

Current through Register Vol. 30, No. 28, July 12, 2024
A. Except
				as provided in subsection (B) of this rule, aquifer boundaries for the aquifers
				in this state are identified and defined as being identical to the hydrologic
				basin and subbasin boundaries, as found by the Director of the Department of
				Water Resources, Findings and Order In the Matter of The Designation of
				Groundwater Basins and Subbasins In The State of Arizona (dated June 21, 1984),
				pursuant to A.R.S. §§
									45-403 and
				45-404, which is incorporated
				herein by reference, on file and available for public inspection at the
				Department of Environmental Quality. No later amendments or editions are
				incorporated by reference.
B.
				Excluded from the boundaries of the aquifers are hard rock areas which contain
				little or no water, as identified in Plate 1 of the Department of Water
				Resources, Water Resource Hydrologic Map Series Report Number 2 (dated January
				1981) and as further identified in the Bureau of Mines, University of Arizona
				County Geologic Map Series (individual county maps dated 1957 through 1960),
				which are incorporated herein by reference, on file and available for public
				inspection at the Department of Environmental Quality. No later amendments or
				editions are incorporated by reference.
C. The Director may, by rule, modify or add
				an aquifer boundary provided that one or more of the following applies:
1. The Department of Water Resources modifies
				the boundaries of its basins or subbasins.
2. The Director is made aware of new
				technical information or data which supports refinement of an aquifer
				boundary.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 5 - AQUIFER BOUNDARY AND PROTECTED USE CLASSIFICATION › Section R18-11-504 - Agency Action on Petition

Current through Register Vol. 30, No. 28, July 12, 2024
A.
				Upon receipt of a petition for reclassification, the Director shall review the
				petition for compliance with the requirements of
				R18-11-503. If additional
				information is necessary, the petitioner shall be notified of specific
				deficiencies in writing within 30 calendar days of receipt of the
				petition.
B. Within 120 calendar
				days after receipt of a complete petition, and after consultation with the
				appropriate advisory council pursuant to A.R.S. §§
									49-224(C), the
				Director shall make a final decision to grant or deny the petition and shall
				notify the petitioner of such decision and the reason for such determination in
				writing.
C. Upon a decision to
				grant a petition for aquifer reclassification, the Director shall initiate
				proceedings for promulgation of aquifer water quality standards and, if
				applicable, for aquifer boundary designation for the reclassified
				aquifers.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 5 - AQUIFER BOUNDARY AND PROTECTED USE CLASSIFICATION › Section R18-11-505 - Public Participation

Current through Register Vol. 30, No. 28, July 12, 2024
A.
				Within 30 days of receipt of a complete petition for reclassification filed
				pursuant to A.R.S. §
									49-224(D),
				or if the Director deems it necessary to consider a reclassification under
				A.R.S. §
									49-224(C),
				the Director shall give public notice of the proposed reclassification pursuant
				to A.A.C. R18-1-401.
B. The
				Director shall hold at least one public hearing at a location as near as
				practicable to the aquifer proposed for reclassification. The Director shall
				give notice of each public hearing and conduct the public hearing in accordance
				with the provisions of A.A.C.
				R18-1-402.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 5 - AQUIFER BOUNDARY AND PROTECTED USE CLASSIFICATION › Section R18-11-506 - Rescission of Reclassification

Current through Register Vol. 30, No. 28, July 12, 2024
The Director may, by rule, rescind an aquifer
				  reclassification and return an aquifer to a drinking water protected use if he
				  determines that any of the conditions under which the reclassification was
				  granted are no longer valid. If the Director initiates a change under this
				  Section, he shall consult with the appropriate advisory council pursuant to
				  A.R.S. §§
									49-224(C).
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 6 - IMPAIRED WATER IDENTIFICATION › Section R18-11-603 - General Data Interpretation Requirements

Current through Register Vol. 30, No. 28, July 12, 2024
A. The Department shall use the following
				data conventions to interpret data for impaired water identifications and TMDL
				decisions:
1. Data reported below laboratory
				detection limits.
a. When the analytical
				result is reported as <X, where X is the laboratory detection limit for the
				analyte and the laboratory detection limit is less than or equal to the surface
				water quality standard, consider the result as meeting the water quality
				standard:
i. Use these statistically derived
				values in trend analysis, descriptive statistics or modeling if there is
				sufficient data to support the statistical estimation of values reported as
				less than the laboratory detection limit; or
ii. Use one-half of the value of the
				laboratory detection limit in trend analysis, descriptive statistics, or
				modeling, if there is insufficient data to support the statistical estimation
				of values reported as less than the laboratory detection limit.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 6 - IMPAIRED WATER IDENTIFICATION › Section R18-11-604 - Types of Surface Waters Placed on the Planning List and 303(d) List

Current through Register Vol. 30, No. 28, July 12, 2024
A. The Department
				shall evaluate, at least every five years, Arizona's surface waters by
				considering all readily available data.
1. The
				Department shall place a surface water or segment on:
a. The Planning List if it meets any of the
				criteria described in subsection (D), or
b. The 303(d) List if it meets the criteria
				for listing described in subsection (E).
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 6 - IMPAIRED WATER IDENTIFICATION › Section R18-11-605 - Evaluating a Surface Water or Segment for Listing and Delisting

Current through Register Vol. 30, No. 28, July 12, 2024
A. The Department
				shall compile and evaluate all reasonably current, credible, and scientifically
				defensible data to determine whether a surface water or segment is impaired or
				not attaining.
B.
				Weight-of-evidence approach.
1. The Department
				shall consider the following concepts when evaluating data:
a. Data or information collected during
				critical conditions may be considered separately from the complete dataset,
				when the data show that the surface water or segment is impaired or not
				attaining its designated use during those critical conditions, but attaining
				its uses during other periods. Critical conditions may include stream flow,
				seasonal periods, weather conditions, or anthropogenic activities;
b. Whether the data indicate that the
				impairment is due to persistent, seasonal, or recurring conditions. If the data
				do not represent persistent, recurring, or seasonal conditions, the Department
				may place the surface water or segment on the Planning List;
c. Higher quality data over lower quality
				data when making a listing decision. Data quality is established by the
				reliability, precision, accuracy, and representativeness of the data, based on
				factors identified in
				R18-11-602(A) and
				(B), including monitoring methods, analytical
				methods, quality control procedures, and the documented field and laboratory
				quality control information submitted with the data. The Department shall
				consider the following factors when determining higher quality data:
i. The age of the measurements. Newer
				measurements are weighted heavier than older measurements, unless the older
				measurements are more representative of critical flow conditions;
ii. Whether the data provide a direct measure
				of an impact on a designated use. Direct measurements are weighted heavier than
				measurements of an indicator or surrogate parameter; or
iii. The amount or frequency of the
				measurements. More frequent data collection are weighted heavier than nominal
				datasets.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 6 - IMPAIRED WATER IDENTIFICATION › Table 1 - Minimum Number of Samples Exceeding the Numeric Standard

Current through Register Vol. 30, No. 28, July 12, 2024
MINIMUM NUMBER OF SAMPLES
						  EXCEEDING THE NUMERIC STANDARD
Number of Samples
Number of Samples Exceeding
						  Standard
Number of Samples
Number of Samples Exceeding
						  Standard
Number of Samples
Number of Samples Exceeding
						  Standard
From
To
From
To
From
To
10
15
3
173
181
22
349
357
41
16
23
4
182
190
23
358
367
42
24
31
5
191
199
24
368
376
43
32
39
6
200
208
25
377
385
44
40
47
7
209
218
26
386
395
45
48
56
8
219
227
27
396
404
46
57
65
9
228
236
28
405
414
47
66
73
10
237
245
29
415
423
48
74
82
11
246
255
30
424
432
49
83
91
12
256
264
31
433
442
50
92
100
13
265
273
32
443
451
51
101
109
14
274
282
33
452
461
52
110
118
15
283
292
34
462
470
53
119
126
16
293
301
35
471
480
54
127
136
17
302
310
36
481
489
55
137
145
18
311
320
37
490
499
56
146
154
19
321
329
38
500
57
155
163
20
330
338
39
164
172
21
339
348
40
2. When there
				are less than ten samples, the Department shall place a surface water or
				segment on the Planning List following subsection (B), if three or more
				temporally independent samples exceed the following surface water quality
				standards:
a. The surface water quality
				standard for a pollutant listed in 18 A.A.C. 11, Article 1, Appendix A, Table
				1, except for nitrate or nitrate/nitrite;
b. The surface water quality standard for
				temperature or the single sample maximum water quality standard for suspended
				sediment concentration, nitrogen, and phosphorus in
				R18-11-109;
c. The surface water quality standard for
				radiochemicals in
				R18-11-109(G);
d. The surface water quality standard for
				dissolved oxygen under R18-11-109(E);
e. The surface water quality standard for pH
				under
				R18-11-109(B);
				or
f. The following surface water
				quality standards in
				R18-11-112:
i. Single sample maximum standards for
				nitrogen and phosphorus,
ii. All
				metals except chromium, or
iii.
				Turbidity.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 6 - IMPAIRED WATER IDENTIFICATION › Table 2 - Minimum Number of Samples Exceeding the Numeric Standard

Current through Register Vol. 30, No. 28, July 12, 2024
MINIMUM NUMBER OF SAMPLES
						  EXCEEDING THE NUMERIC STANDARD
Number of Samples
Number of Samples Exceeding
						  Standard
Number of Samples
Number of Samples Exceeding
						  Standard
Number of Samples
Number of Samples Exceeding
						  Standard
From
To
From
To
From
To
20
25
5
174
182
24
344
352
43
26
32
6
183
191
25
353
361
44
33
40
7
192
199
26
362
370
45
41
47
8
200
208
27
371
379
46
48
55
9
209
217
28
380
388
47
56
63
10
218
226
29
389
397
48
64
71
11
227
235
30
398
406
49
72
79
12
236
244
31
407
415
50
80
88
13
245
253
32
416
424
51
89
96
14
254
262
33
425
434
52
97
104
15
263
270
34
435
443
53
105
113
16
271
279
35
444
452
54
114
121
17
280
288
36
453
461
55
122
130
18
289
297
37
462
470
56
131
138
19
298
306
38
471
479
57
139
147
20
307
315
39
480
489
58
148
156
21
316
324
40
490
498
59
157
164
22
325
333
41
499
500
60
165
173
23
334
343
42
2. The
				Department shall place a surface water or segment on the 303(d) List, following
				subsection (B) without the required number of samples or numeric water quality
				standard exceedances under subsection (D)(1), if either the following
				conditions occur:
a. More than one temporally
				independent sample in any consecutive three-year period exceeds the surface
				water quality standard in:
i. The acute water
				quality standard for a pollutant listed in 18 A.A.C. 11, Article 1, Appendix A,
				Table 2 and the acute water quality standards in
				R18-11-112;
ii. The surface water quality standard for
				nitrate or nitrate/nitrite in 18 A.A.C. 11, Article 1, Appendix A, Table 1;
				or
iii. The single sample maximum
				water quality standard for bacteria in subsections
				R18-11-109(A).
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 11 - DEPARTMENT OF ENVIRONMENTAL QUALITY - WATER QUALITY STANDARDS › Article 6 - IMPAIRED WATER IDENTIFICATION › Section R18-11-606 - TMDL Priority Criteria for 303(d) Listed Surface Waters or Segments

Current through Register Vol. 30, No. 28, July 12, 2024
A. In addition to
				the factors specified in A.R.S. §
									49-233(C),
				the Department shall consider the following when prioritizing an impaired water
				for development of TMDLs:
1. A change in a
				water quality standard;
2. The date
				the surface water or segment was added to the 303(d) List;
3. The presence in a surface water or segment
				of species listed as threatened or endangered under section 4 of the Endangered
				Species Act;
4. The complexity of
				the TMDL;
5. State, federal, and
				tribal policies and priorities; and
6. The efficiencies of coordinating TMDL
				development with the Department's surface water monitoring program, the
				watershed monitoring rotation, or with remedial programs.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 12 - DEPARTMENT OF ENVIRONMENTAL QUALITY - UNDERGROUND STORAGE TANKS › Article 1 - DEFINITIONS; APPLICABILITY › Section R18-12-102 - Applicability

Current through Register Vol. 30, No. 28, July 12, 2024
A. Owners and
				operators. As provided in A.R.S. §
									49-1016(A),
				the responsibilities of this Chapter, unless indicated otherwise, are imposed
				on persons who are the owner or the operator of an UST. If the owner and
				operator of an UST are separate persons, only one person is required to
				discharge any specific responsibility. Both persons are liable in the event of
				noncompliance.
B. Persons in
				possession or control of property. The requirements of this Chapter are
				applicable to a person acting under the provisions of A.R.S. §
									49-1016(C).
C. No supersedence. Nothing in this Chapter
				supersedes the requirements of the following:
1. An order of a court of competent
				jurisdiction in effect before August 20, 2002,
2. An order of the Director under A.R.S.
				§
										49-1013
				in effect before August 20, 2002.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 12 - DEPARTMENT OF ENVIRONMENTAL QUALITY - UNDERGROUND STORAGE TANKS › Article 2 - TECHNICAL REQUIREMENTS › Section R18-12-210 - Applicability

Current through Register Vol. 30, No. 28, July 12, 2024
A. The requirements
				of this Article apply to all owners and operators of an UST system, except as
				otherwise provided in subsections (B) and (C).
1. Previously deferred UST systems. Airport
				hydrant fuel distribution systems, UST systems with field-constructed tanks,
				and UST systems that store fuel solely for use by emergency power generators
				shall meet the requirements of this Chapter as follows:
a. Airport hydrant fuel distribution systems
				and UST systems with field-constructed tanks shall meet the requirements in
				Article 9.
b. UST systems that
				store fuel solely for use by emergency power generators installed on or before
				January 1, 2020 shall meet the release detection requirements of R18-12-240
				through R18-12-245 on or before March 1, 2020.
c. UST systems that store fuel solely for use
				by emergency power generators installed after January 1, 2020 shall meet all
				applicable requirements of this Chapter at installation.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 12 - DEPARTMENT OF ENVIRONMENTAL QUALITY - UNDERGROUND STORAGE TANKS › Article 2 - TECHNICAL REQUIREMENTS › Section R18-12-211 - Installation Requirements for Partially Excluded UST Systems

Current through Register Vol. 30, No. 28, July 12, 2024
A. Owners and
				operators installing an UST system listed in
				R18-12-210(C)(1),
				(3), or (4) storing regulated substances,
				whether of single-wall or double-wall construction, shall ensure that it meets
				all of the following requirements:
1. The UST
				system will prevent releases due to corrosion or structural failure for the
				operational life of the UST system;
2. The UST system is cathodically protected
				against corrosion, constructed of non-corrodible material, steel clad with a
				non-corrodible material, or designed in a manner to prevent the release or
				threatened release of any stored substance;
3. The UST system is constructed or lined
				with material that is compatible with the stored substance.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 12 - DEPARTMENT OF ENVIRONMENTAL QUALITY - UNDERGROUND STORAGE TANKS › Article 2 - TECHNICAL REQUIREMENTS › Section R18-12-219 - Installation of New UST Systems

Current through Register Vol. 30, No. 28, July 12, 2024
A.
				An owner or operator that intends to bring a new underground storage tank
				system into operation shall submit to the Director on a Department form all of
				the following information at least 30 days before beginning installation:
1. The tank's size, construction material,
				manufacturer, and intended system contents;
2. The certified UST service provider who
				will perform or supervise the installation;
3. Detailed installation plans showing the
				site drawn to scale, piping layouts, electrical service, and stating that the
				tanks will be installed according to the manufacturer's instructions, and the
				applicable installation standards and codes of practice in
				R18-12-220
				and R18-12-281;
4. Evidence that
				the intended system contents are compatible with the UST system;
5. A statement describing how the owner or
				operator plans to satisfy financial responsibility in accordance with Article
				3;
6. The intended installation
				schedule with the proposed backfill date.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 12 - DEPARTMENT OF ENVIRONMENTAL QUALITY - UNDERGROUND STORAGE TANKS › Article 2 - TECHNICAL REQUIREMENTS › Section R18-12-221 - Upgrading of Existing UST Systems

Current through Register Vol. 30, No. 28, July 12, 2024
A. Owners and operators shall permanently
				close (in accordance with
				R18-12-270
				through
				R18-12-274
				) any UST system that does not meet the new UST system performance standards in
				R18-12-220
				or has not been upgraded in accordance with subsections (F) through (I) of this
				Section. This does not apply to previously deferred UST systems described in
				Article 9 and where an upgrade is determined to be appropriate by the
				Department. All existing UST systems shall comply with one of the following
				requirements:
1. New UST system performance
				standards under
				R18-12-220;
2. The upgrading requirements described in
				subsections (E) through (H);
3.
				Closure requirements under
				R18-12-270
				through
				R18-12-274,
				including applicable requirements for release reporting and corrective action
				under R18-12-250 through R18-12-264.01.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 12 - DEPARTMENT OF ENVIRONMENTAL QUALITY - UNDERGROUND STORAGE TANKS › Article 2 - TECHNICAL REQUIREMENTS › Section R18-12-222 - Notification Requirements

Current through Register Vol. 30, No. 28, July 12, 2024
A. An
				owner of an UST system shall comply with the notification requirements of this
				Section in accordance with those described in A.R.S. §
									49-1002.
B. An owner shall submit the most current and
				complete information on each UST system at each facility utilizing the
				Departmental form titled "Notification for Underground Storage Tanks"
				("Notification Form"). An owner shall submit a separate Notification Form to
				the Department for each facility which is owned. Submitted information shall
				include all of the following for each UST system:
1. Type of notification specifying one of the
				following:
a. New facility,
b. Amendment of previous Notification
				Form,
c. Closure.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 12 - DEPARTMENT OF ENVIRONMENTAL QUALITY - UNDERGROUND STORAGE TANKS › Article 2 - TECHNICAL REQUIREMENTS › Section R18-12-230 - Spill and Overfill Control

Current through Register Vol. 30, No. 28, July 12, 2024
A.
				Owners and operators shall ensure that releases due to spilling or overfilling
				do not occur. Owners and operators shall ensure, before the transfer is made,
				that the volume then available in the tank is greater than the volume of
				regulated substance to be transferred to the tank. Owners and operators also
				shall ensure that the operation is monitored constantly to prevent overfilling
				and spilling. Compliance with this subsection shall be determined in accordance
				with the performance standards set forth in
				R18-12-281(I).
B. Owners and operators shall report,
				investigate, and clean up any spills and overfills in accordance with A.R.S.
				§§
									49-1004
				and
				49-1005 and the
				rules promulgated thereunder, including
				R18-12-251(A)
				and
				R18-12-260.
Arizona Administrative Code › Title 18 - ENVIRONMENTAL QUALITY › Chapter 12 - DEPARTMENT OF ENVIRONMENTAL QUALITY - UNDERGROUND STORAGE TANKS › Article 2 - TECHNICAL REQUIREMENTS › Section R18-12-231 - Operation and Maintenance of Corrosion Protection

Current through Register Vol. 30, No. 28, July 12, 2024
A. A corrosion protection system shall be
				operated and maintained to continuously provide corrosion protection to the
				metal components of an UST system which are subject to the corrosion protection
				requirements of
				R18-12-220
				and
				R18-12-221
				and to piping which routinely contains regulated substances and is in contact
				with the ground.
B. An UST system
				equipped with cathodic protection systems shall be inspected for proper
				operation by a qualified cathodic protection tester. Owners and operators shall
				ensure compliance with both of the following requirements:
1. A cathodic protection system shall be
				tested within six months of installation and at least every three years
				thereafter,
2. The criteria that
				are used to determine that cathodic protection is adequate as required by this
				Section shall be in accordance with the codes of practice set forth in
				R18-12-281(J).