N.M. Code R. § 20.6.4.900

20.6.4.900

CRITERIA APPLICABLE TO EXISTING, DESIGNATED OR ATTAINABLE USES UNLESS OTHERWISE SPECIFIED IN 20.6.4.97 THROUGH 20.6.4.899 NMAC:

A. Fish culture and water supply: Fish culture, public water supply and industrial water supply are designated uses in particular classified waters of the state where these uses are actually being realized. However, no numeric criteria apply uniquely to these uses. Water quality adequate for these uses is ensured by the general criteria and numeric criteria for bacterial quality, pH and temperature.
B. Domestic water supply: Surface waters of the state designated for use as domestic water supplies shall not contain substances in concentrations that create a lifetime cancer risk of more than one cancer per 100,000 exposed persons. Those criteria listed under domestic water supply in Subsection J of this section apply to this use.
C. Irrigation and irrigation storage: the following numeric criteria and those criteria listed under irrigation in Subsection J of this section apply to this use:
1. (1) dissolved selenium 0.13 mg/L
2. (2) dissolved selenium in presence of >500 mg/L SO₄ 0.25 mg/L.
D. Primary contact: The monthly geometric mean of E. coli bacteria of 126 cfu/100 mL or MPN/100 ml, a single sample of E. coli bacteria of 410 cfu/100 mL or MPN/100 mL, a single sample of total microcystins of 8 µg/L with no more than three exceedances within a 12-month period and a single sample of cylindrospermopsin of 15 µg/L with no more than three exceedances within a 12-month period, and pH within the range of 6.6 to 9.0 apply to this use. The results for E. coli may be reported as either colony forming units (CFU) or the most probable number (MPN) depending on the analytical method used.
E. Secondary contact: The monthly geometric mean of E. coli bacteria of 548 cfu/100 mL or MPN/100 mL and single sample of 2507 cfu/100 mL or MPN/100 mL apply to this use. The results for E. coli may be reported as either colony forming units (CFU) or the most probable number (MPN), depending on the analytical method used.
F. Livestock watering: the criteria listed in Subsection J of this section for livestock watering apply to this use.
G. Wildlife habitat: Wildlife habitat shall be free from any substances at concentrations that are toxic to or will adversely affect plants and animals that use these environments for feeding, drinking, habitat or propagation; can bioaccumulate; or might impair the community of animals in a watershed or the ecological integrity of surface waters of the state. The numeric criteria listed in Subsection J for wildlife habitat apply to this use.
H. Aquatic life: Surface waters of the state with a designated, existing or attainable use of aquatic life shall be free from any substances at concentrations that can impair the community of plants and animals in or the ecological integrity of surface waters of the state. Except as provided in Paragraph (7) of this subsection, the acute and chronic aquatic life criteria set out in Subsections I, J, K and L of this section and the human health-organism only criteria set out in Subsection J of this section are applicable to all aquatic life use subcategories. In addition, the specific criteria for aquatic life subcategories in the following paragraphs apply to waters classified under the respective designations.
1. (1) High quality coldwater: dissolved oxygen 6.0 mg/L or more, 4T3 temperature 20°C (68°F), maximum temperature 23°C (73°F), pH within the range of 6.6 to 8.8 and specific conductance a segment-specific limit between 300 µS/cm and 1,500 µS/cm depending on the natural background in the particular surface water of the state (the intent of this criterion is to prevent excessive increases in dissolved solids which would result in changes in community structure). Where a single segment-specific temperature criterion is indicated in 20.6.4.101-899 NMAC, it is the maximum temperature and no 4T3 temperature applies.
2. (2) Coldwater: dissolved oxygen 6.0 mg/L or more, 6T3 temperature 20°C (68°F), maximum temperature 24°C (75°F) and pH within the range of 6.6 to 8.8. Where a single segment-specific temperature criterion is indicated in 20.6.4.101-899 NMAC, it is the maximum temperature and no 6T3 temperature applies.
3. (3) Marginal coldwater: dissolved oxygen 6 mg/L or more, 6T3 temperature 25°C (77°F), maximum temperature 29°C (84°F) and pH within the range from 6.6 to 9.0. Where a single segment-specific temperature criterion is indicated in 20.6.4.101-899 NMAC, it is the maximum temperature and no 6T3 temperature applies.
4. (4) Coolwater: dissolved oxygen 5.0 mg/L or more, maximum temperature 29°C (84°F) and pH within the range of 6.6 to 9.0.
5. (5) Warmwater: dissolved oxygen 5 mg/L or more, maximum temperature 32.2°C (90°F) and pH within the range of 6.6 to 9.0. Where a segment-specific temperature criterion is indicated in 20.6.4.101-899 NMAC, it is the maximum temperature.
6. (6) Marginal warmwater: dissolved oxygen 5 mg/L or more, pH within the range of 6.6 to 9.0 and temperatures that may routinely exceed 32.2°C (90°F). Where a segment-specific temperature criterion is indicated in 20.6.4.101-899 NMAC, it is the maximum temperature.
7. (7) Limited aquatic life: The acute aquatic life criteria of Subsections I and J of this section apply to this subcategory. Chronic aquatic life criteria do not apply unless adopted on a segment-specific basis. Human health-organism only criteria apply only for persistent toxic pollutants unless adopted on a segment-specific basis.
I. Hardness-dependent acute and chronic aquatic life criteria for metals are calculated using the following equations. The criteria are expressed as a function of hardness (as mg CaCO₃/L). With the exception of aluminum, the equations are valid only forhardness concentrations of 0-400 mg/L. For hardness concentrations above 400 mg/L, the criteria for 400 mg/L apply. For aluminum the equations are valid only for hardness concentrations of 0-220 mg/L. For hardness concentrations above 220 mg/L, the aluminum criteria for 220 mg/L apply. Calculated criteria must adhere to the treatment of significant figures and rounding identified in Standard Methods For The Examination Of Water And Wastewater, latest edition, American public health association.
1. (1) Acute aquatic life criteria for metals: The equation to calculate acute criteria in µg/L is exp(m_A[ln(hardness)] + b_A)(CF). Except for aluminum, the criteria are based on analysis of dissolved metal. For aluminum, the criteria are based on analysis of total recoverable aluminum in a sample that has a pH between 6.5 and 9.0 and is filtered to minimize mineral phases as specified by the department. The equation parameters are as follows:
  Metal m_A b_A Conversion factor (CF) Aluminum (Al) 1.3695 1.8308 Cadmium (Cd) 0.9789 -3.866 1.136672-[(ln hardness)(0.041838)] Chromium (Cr) III 0.8190 3.7256 0.316 Copper (Cu) 0.9422 -1.700 0.960 Lead (Pb) 1.273 -1.460 1.46203-[(ln hardness)(0.145712)] Manganese (Mn) 0.3331 6.4676 Nickel (Ni) 0.8460 2.255 0.998 Silver (Ag) 1.72 -6.59 0.85 Zinc (Zn) 0.9094 0.9095 0.978
  Metal
  m_A
  b_A
  Conversion factor (CF)
  Aluminum (Al)
  1.3695
  1.8308
  Cadmium (Cd)
  0.9789
  -3.866
  1.136672-[(ln hardness)(0.041838)]
  Chromium (Cr) III
  0.8190
  3.7256
  0.316
  Copper (Cu)
  0.9422
  -1.700
  0.960
  Lead (Pb)
  1.273
  -1.460
  1.46203-[(ln hardness)(0.145712)]
  Manganese (Mn)
  0.3331
  6.4676
  Nickel (Ni)
  0.8460
  2.255
  0.998
  Silver (Ag)
  1.72
  -6.59
  0.85
  Zinc (Zn)
  0.9094
  0.9095
  0.978
2. (2) Chronic aquatic life criteria for metals: The equation to calculate chronic criteria in µg/L is exp(m_C[ln(hardness)] + b_C)(CF). Except for aluminum, the criteria are based on analysis of dissolved metal. For aluminum, the criteria are based on analysis of total recoverable aluminum in a sample that has a pH between 6.5 and 9.0 and is filtered to minimize mineral phases as specified by the department. The equation parameters are as follows:
  Metal m_C b_C Conversion factor (CF) Aluminum (Al) 1.3695 0.9161 Cadmium (Cd) 0.7977 -3.909 1.101672-[(ln hardness)(0.041838)] Chromium (Cr) III 0.8190 0.6848 0.860 Copper (Cu) 0.8545 -1.702 0.960 Lead (Pb) 1.273 -4.705 1.46203-[(ln hardness)(0.145712)] Manganese (Mn) 0.3331 5.8743 Nickel (Ni) 0.8460 0.0584 0.997 Zinc (Zn) 0.9094 0.6235 0.986
  Metal
  m_C
  b_C
  Conversion factor (CF)
  Aluminum (Al)
  1.3695
  0.9161
  Cadmium (Cd)
  0.7977
  -3.909
  1.101672-[(ln hardness)(0.041838)]
  Chromium (Cr) III
  0.8190
  0.6848
  0.860
  Copper (Cu)
  0.8545
  -1.702
  0.960
  Lead (Pb)
  1.273
  -4.705
  1.46203-[(ln hardness)(0.145712)]
  Manganese (Mn)
  0.3331
  5.8743
  Nickel (Ni)
  0.8460
  0.0584
  0.997
  Zinc (Zn)
  0.9094
  0.6235
  0.986
3. (3) Selected values of calculated acute and chronic criteria (µg/L).
  Hardness as CaCO₃, dissolved (mg/L) Al Cd Cr III Cu Pb Mn Ni Ag Zn 25.0 Acute 512 0.490 183 3.64 13.9 1,880 145 0.30 45.4 Chronic 205 0.253 23.8 2.74 0.541 1,040 16.1 34.4 30.0 Acute 658 0.581 212 4.32 17.0 2,000 169 0.40 53.5 Chronic 263 0.290 27.6 3.20 0.664 1,100 18.8 40.5 40.0 Acute 975 0.761 269 5.67 23.5 2,200 216 0.66 69.5 Chronic 391 0.360 35.0 4.09 0.916 1,220 24.0 52.7 50.0 Acute 1,320 0.938 323 6.99 30.1 2,370 260 0.98 85.2 Chronic 530 0.426 42.0 4.95 1.17 1,310 28.9 64.5 60.0 Acute 1,700 1.11 375 8.30 36.9 2,520 304 1.3 100 Chronic 681 0.489 48.8 5.79 1.44 1,390 33.8 76.2 70.0 Acute 2,100 1.28 425 9.60 43.7 2,650 346 1.7 116 Chronic 841 0.549 55.3 6.60 1.70 1,460 38.5 87.6 80.0 Acute 2,520 1.46 474 10.9 50.6 2,770 388 2.2 131 Chronic 1,010 0.607 61.7 7.40 1.97 1,530 43.0 98.9 90.0 Acute 2,960 1.62 523 12.2 57.6 2,880 428 2.7 145 Chronic 1,190 0.664 68.0 8.18 2.24 1,590 47.6 110 100 Acute 3,420 1.79 570 13.4 64.6 2,980 468 3.2 160 Chronic 1,370 0.718 74.1 8.96 2.52 1,650 52.0 121 200 Acute 8,840 3.43 1,000 25.8 136 3,760 842 10 300 Chronic 3,540 1.21 131 16.2 5.30 2,080 93.5 228 220 Acute 10,100 3.74 1,090 28.2 151 3,880 912 12 328 Chronic 4,030 1.30 141 17.6 5.87 2,140 101 248 300 Acute 5.00 1,400 37.8 208 4,300 1,190 21 434 Chronic 1.64 182 22.9 8.13 2,380 132 329 400 and above Acute 6.54 1,770 49.6 281 4,740 1,510 35 564 Chronic 2.03 231 29.3 10.9 2,620 168 428
  Hardness as CaCO₃, dissolved (mg/L)
  Al
  Cd
  Cr III
  Cu
  Pb
  Mn
  Ni
  Ag
  Zn
  25.0
  Acute
  512
  0.490
  183
  3.64
  13.9
  1,880
  145
  0.30
  45.4
  Chronic
  205
  0.253
  23.8
  2.74
  0.541
  1,040
  16.1
  34.4
  30.0
  Acute
  658
  0.581
  212
  4.32
  17.0
  2,000
  169
  0.40
  53.5
  Chronic
  263
  0.290
  27.6
  3.20
  0.664
  1,100
  18.8
  40.5
  40.0
  Acute
  975
  0.761
  269
  5.67
  23.5
  2,200
  216
  0.66
  69.5
  Chronic
  391
  0.360
  35.0
  4.09
  0.916
  1,220
  24.0
  52.7
  50.0
  Acute
  1,320
  0.938
  323
  6.99
  30.1
  2,370
  260
  0.98
  85.2
  Chronic
  530
  0.426
  42.0
  4.95
  1.17
  1,310
  28.9
  64.5
  60.0
  Acute
  1,700
  1.11
  375
  8.30
  36.9
  2,520
  304
  1.3
  100
  Chronic
  681
  0.489
  48.8
  5.79
  1.44
  1,390
  33.8
  76.2
  70.0
  Acute
  2,100
  1.28
  425
  9.60
  43.7
  2,650
  346
  1.7
  116
  Chronic
  841
  0.549
  55.3
  6.60
  1.70
  1,460
  38.5
  87.6
  80.0
  Acute
  2,520
  1.46
  474
  10.9
  50.6
  2,770
  388
  2.2
  131
  Chronic
  1,010
  0.607
  61.7
  7.40
  1.97
  1,530
  43.0
  98.9
  90.0
  Acute
  2,960
  1.62
  523
  12.2
  57.6
  2,880
  428
  2.7
  145
  Chronic
  1,190
  0.664
  68.0
  8.18
  2.24
  1,590
  47.6
  110
  100
  Acute
  3,420
  1.79
  570
  13.4
  64.6
  2,980
  468
  3.2
  160
  Chronic
  1,370
  0.718
  74.1
  8.96
  2.52
  1,650
  52.0
  121
  200
  Acute
  8,840
  3.43
  1,000
  25.8
  136
  3,760
  842
  10
  300
  Chronic
  3,540
  1.21
  131
  16.2
  5.30
  2,080
  93.5
  228
  220
  Acute
  10,100
  3.74
  1,090
  28.2
  151
  3,880
  912
  12
  328
  Chronic
  4,030
  1.30
  141
  17.6
  5.87
  2,140
  101
  248
  300
  Acute
  5.00
  1,400
  37.8
  208
  4,300
  1,190
  21
  434
  Chronic
  1.64
  182
  22.9
  8.13
  2,380
  132
  329
  400 and above
  Acute
  6.54
  1,770
  49.6
  281
  4,740
  1,510
  35
  564
  Chronic
  2.03
  231
  29.3
  10.9
  2,620
  168
  428
J. Use-specific numeric criteria.
1. (1) Table of numeric criteria: The following table sets forth the numeric criteria applicable to existing, designated and attainable uses. For metals, criteria represent the total sample fraction unless otherwise specified in the table. Additional criteria that are not compatible with this table are found in Subsections A through I, K and L of this section.
  Pollutant CAS Number DWS Irr/Irr storage LW WH Aquatic Life Type Acute Chronic HH-OO Aluminum, dissolved 7429-90-5 5,000 750 i 87 i Aluminum, total recoverable 7429-90-5 a a Antimony, dissolved 7440-36-0 6 640 P Arsenic, dissolved 7440-38-2 10 100 200 340 150 9.0 C,P Asbestos 1332-21-4 7,000,000 fibers/L Barium, dissolved 7440-39-3 2,000 Beryllium, dissolved 7440-41-7 4 Boron, dissolved 7440-42-8 750 5,000 Cadmium, dissolved 7440-43-9 5 10 50 a a Chloride 1688-70-06 860,000 230,000 Chlorine residual 7782-50-5 11 19 11 Chromium III, dissolved 16065-83-1 a a Chromium VI, dissolved 18540-29-9 16 11 Chromium, dissolved 7440-47-3 100 100 1,000 Cobalt, dissolved 7440-48-4 50 1,000 Copper, dissolved 7440-50-8 1300 200 500 a a Cyanide, total recoverable 57-12-5 200 5.2 22.0 5.2 400 Iron 7439-89-6 1,000 Lead, dissolved 7439-92-1 15 5,000 100 a a Manganese, dissolved 7439-96-5 a a Mercury 7439-97-6 2 10 0.77 Mercury, dissolved 7439-97-6 1.4 0.77 Methylmercury 22967-92-6 0.3 mg/kg in fish tissue P Molybdenum, dissolved 7439-98-7 1,000 Molybdenum, total recoverable 7439-98-7 7,920 1,895 Nickel, dissolved 7440-02-0 700 a a 4,600 P Nitrate as N 10 mg/L Nitrite + Nitrate 132 mg/L Selenium, dissolved 7782-49-2 50 b 50 4,200 P Selenium, total recoverable 7782-49-2 5.0 20.0 5.0 Silver, dissolved 7440-22-4 a Thallium, dissolved 7440-28-0 2 0.47 P Uranium, dissolved 7440-61-1 30 Vanadium, dissolved 7440-62-2 100 100 Zinc, dissolved 7440-66-6 10,500 2,000 25,000 a a 26,000 P Adjusted gross alpha 15 pCi/L 15 pCi/L Radium 226 + Radium 228 5 pCi/L 30.0 pCi/L Strontium 90 8 pCi/L Tritium 20,000 pCi/L 20,000 pCi/L Acenaphthene 83-32-9 2,100 90 Acrolein 107-02-8 18 3.0 3.0 400 Acrylonitrile 107-13-1 0.65 70 C Aldrin 309-00-2 0.021 3.0 0.0000077 C,P Anthracene 120-12-7 10,500 400 Benzene 71-43-2 5 160 C Benzidine 92-87-5 0.0015 0.11 C Benzo(a)anthracene 56-55-3 0.048 0.013 C Benzo(a)pyrene 50-32-8 0.2 0.0013 C,P Benzo(b)fluoranthene 205-99-2 0.048 0.013 C Benzo(k)fluoranthene 207-08-9 0.048 0.13 C alpha-BHC 319-84-6 0.056 0.0039 C beta-BHC 319-85-7 0.091 0.14 C gamma-BHC (Lindane) 58-89-9 0.20 0.95 4.4 Bis(2-chloroethyl) ether 111-44-4 0.30 22 C Bis(2-chloro-1-methylethyl) ether 108-60-1 1,400 4,000 Bis(2-ethylhexyl) phthalate 117-81-7 6 3.7 C Bis(chloromethyl) ether 542-88-1 0.17 C Bromoform 75-25-2 44 1,200 C Butylbenzyl phthalate 85-68-7 7,000 1 C Carbaryl 63-25-2 2.1 2.1 Carbon tetrachloride 56-23-5 5 50 C Chlordane 57-74-9 2 2.4 0.0043 0.0032 C,P Chlorobenzene 108-90-7 100 800 Chlorodibromomethane 124-48-1 4.2 210 C Chloroform 67-66-3 57 2,000 Chlorpyrifos 2921-88-2 0.083 0.041 2-Chloronaphthalene 91-58-7 2,800 1,000 2-Chlorophenol 95-57-8 175 800 Chrysene 218-01-9 0.048 1.3 C Demeton 8065-48-3 0.1 Diazinon 333-41-5 0.17 0.17 2,4-Dichlorophenoxyacetic acid 94-75-7 12,000 Dichlorodiphenyldichloroethane (DDD) 72-54-8 0.0012 C Dichlorodiphenyldichloroethylene (DDE) 72-55-9 0.00018 C Dichlorodiphenyltrichloroethane (DDT) 50-29-3 0.0003 C,P 4,4'-DDT and derivatives 1.0 0.001 1.1 0.001 Dibenzo(a,h)anthracene 53-70-3 0.048 0.0013 C Dibutyl phthalate 84-74-2 3,500 30 1,2-Dichlorobenzene 95-50-1 600 3,000 1,3-Dichlorobenzene 541-73-1 469 10 1,4-Dichlorobenzene 106-46-7 75 900 3,3'-Dichlorobenzidine 91-94-1 0.78 1.5 C Dichlorobromomethane 75-27-4 5.6 270 C 1,2-Dichloroethane 107-06-2 5 6,500 C 1,1-Dichloroethylene 75-35-4 7 20,000 2,4-Dichlorophenol 120-83-2 105 60 1,2-Dichloropropane 78-87-5 5.0 310 C 1,3-Dichloropropene 542-75-6 3.5 120 C Dieldrin 60-57-1 0.022 0.24 0.056 0.000012 C,P Diethyl phthalate 84-66-2 28,000 600 Dimethyl phthalate 131-11-3 350,000 2,000 2,4-Dimethylphenol 105-67-9 700 3,000 Dinitrophenols 25550-58-7 1,000 2,4-Dinitrophenol 51-28-5 70 300 2,4-Dinitrotoluene 121-14-2 1.1 17 C Dioxin 1746-01-6 3.0E-05 5.1E-08 C,P 1,2-Diphenylhydrazine 122-66-7 0.44 2.0 C alpha-Endosulfan 959-98-8 62 0.22 0.056 30 beta-Endosulfan 33213-65-9 62 0.22 0.056 40 Endosulfan sulfate 1031-07-8 62 40 Endrin 72-20-8 2 0.086 0.036 0.03 Endrin aldehyde 7421-93-4 10.5 1 Ethylbenzene 100-41-4 700 130 Fluoranthene 206-44-0 1,400 20 Fluorene 86-73-7 1,400 70 Guthion 86-50-0 0.01 Heptachlor 76-44-8 0.40 0.52 0.0038 0.000059 C Heptachlor epoxide 1024-57-3 0.20 0.52 0.0038 0.00032 C Hexachlorobenzene 118-74-1 1 0.00079 C,P Hexachlorobutadiene 87-68-3 4.5 0.1 C Hexachlorocyclohexane (HCH)-Technical 608-73-1 0.1 C Hexachlorocyclopen-tadiene 77-47-4 50 4 Hexachloroethane 67-72-1 25 1 C Ideno(1,2,3-cd)pyrene 193-39-5 0.048 0.013 C Isophorone 78-59-1 368 18,000 C Malathion 121-75-5 0.1 Methoxychlor 72-43-5 0.03 0.02 Methyl bromide 74-83-9 49 10,000 3-Methyl-4-chlorophenol 59-50-7 2,000 2-Methyl-4,6-dinitrophenol 534-52-1 14 30 Methylene chloride 75-09-2 5 10,000 C Mirex 2385-85-5 0.001 Nitrobenzene 98-95-3 18 600 Nitrosamines Various 12.4 C Nitrosodibutylamine 924-16-3 2.2 C Nitrosodiethylamine 55-18-5 12.4 C N-Nitrosodimethylamine 62-75-9 0.0069 30 C N-Nitrosodi-n-propylamine 621-64-7 0.050 5.1 C N-Nitrosodiphenylamine 86-30-6 71 60 C N-Nitrosopyrrolidine 930-55-2 340 C Nonylphenol 84852-15-3 28 6.6 Parathion 56-38-2 0.065 0.013 Pentachlorobenzene 608-93-5 0.1 Pentachlorophenol 87-86-5 1.0 19 15 0.4 C Phenol 108-95-2 10,500 300,000 Polychlorinated Biphenyls (PCBs) 1336-36-3 0.50 0.014 2 0.014 0.00064 C,P Pyrene 129-00-0 1,050 30 1,2,4,5-Tetrachlorobenzene 95-94-3 0.03 1,1,2,2-Tetrachloroethane 79-34-5 1.8 30 C Tetrachloroethylene 127-18-4 5 290 C,P Toluene 108-88-3 1,000 520 Toxaphene 8001-35-2 3 0.73 0.0002 0.0071 C 1,2-Trans-dichloroethylene 156-60-5 100 4,000 Tributyltin (TBT) Various 0.46 0.072 1,2,4-Trichlorobenzene 120-82-1 70 0.76 C 1,1,1-Trichloroethane 71-55-6 200 200,000 1,1,2-Trichloroethane 79-00-5 5 89 C Trichloroethylene 79-01-6 5 70 C 2,4,5-Trichlorophenol 95-95-4 600 2,4,6-Trichlorophenol 88-06-2 32 28 C 2-(2,4,5-Trichlorophenoxy)propionic acid (Silvex) 93-72-1 400 Vinyl chloride 75-01-4 2 16 C
  Pollutant
  CAS
  Number
  DWS
  Irr/Irr storage
  LW
  WH
  Aquatic Life
  Type
  Acute
  Chronic
  HH-OO
  Aluminum, dissolved
  7429-90-5
  5,000
  750 i
  87 i
  Aluminum, total recoverable
  7429-90-5
  a
  a
  Antimony, dissolved
  7440-36-0
  6
  640
  P
  Arsenic, dissolved
  7440-38-2
  10
  100
  200
  340
  150
  9.0
  C,P
  Asbestos
  1332-21-4
  7,000,000 fibers/L
  Barium, dissolved
  7440-39-3
  2,000
  Beryllium, dissolved
  7440-41-7
  4
  Boron, dissolved
  7440-42-8
  750
  5,000
  Cadmium, dissolved
  7440-43-9
  5
  10
  50
  a
  a
  Chloride
  1688-70-06
  860,000
  230,000
  Chlorine residual
  7782-50-5
  11
  19
  11
  Chromium III, dissolved
  16065-83-1
  a
  a
  Chromium VI, dissolved
  18540-29-9
  16
  11
  Chromium, dissolved
  7440-47-3
  100
  100
  1,000
  Cobalt, dissolved
  7440-48-4
  50
  1,000
  Copper, dissolved
  7440-50-8
  1300
  200
  500
  a
  a
  Cyanide, total recoverable
  57-12-5
  200
  5.2
  22.0
  5.2
  400
  Iron
  7439-89-6
  1,000
  Lead, dissolved
  7439-92-1
  15
  5,000
  100
  a
  a
  Manganese, dissolved
  7439-96-5
  a
  a
  Mercury
  7439-97-6
  2
  10
  0.77
  Mercury, dissolved
  7439-97-6
  1.4
  0.77
  Methylmercury
  22967-92-6
  0.3 mg/kg in fish tissue
  P
  Molybdenum, dissolved
  7439-98-7
  1,000
  Molybdenum, total recoverable
  7439-98-7
  7,920
  1,895
  Nickel, dissolved
  7440-02-0
  700
  a
  a
  4,600
  P
  Nitrate as N
  10 mg/L
  Nitrite + Nitrate
  132 mg/L
  Selenium, dissolved
  7782-49-2
  50
  b
  50
  4,200
  P
  Selenium, total recoverable
  7782-49-2
  5.0
  20.0
  5.0
  Silver, dissolved
  7440-22-4
  a
  Thallium, dissolved
  7440-28-0
  2
  0.47
  P
  Uranium, dissolved
  7440-61-1
  30
  Vanadium, dissolved
  7440-62-2
  100
  100
  Zinc, dissolved
  7440-66-6
  10,500
  2,000
  25,000
  a
  a
  26,000
  P
  Adjusted gross alpha
  15 pCi/L
  15 pCi/L
  Radium 226 + Radium 228
  5 pCi/L
  30.0 pCi/L
  Strontium 90
  8 pCi/L
  Tritium
  20,000 pCi/L
  20,000 pCi/L
  Acenaphthene
  83-32-9
  2,100
  90
  Acrolein
  107-02-8
  18
  3.0
  3.0
  400
  Acrylonitrile
  107-13-1
  0.65
  70
  C
  Aldrin
  309-00-2
  0.021
  3.0
  0.0000077
  C,P
  Anthracene
  120-12-7
  10,500
  400
  Benzene
  71-43-2
  5
  160
  C
  Benzidine
  92-87-5
  0.0015
  0.11
  C
  Benzo(a)anthracene
  56-55-3
  0.048
  0.013
  C
  Benzo(a)pyrene
  50-32-8
  0.2
  0.0013
  C,P
  Benzo(b)fluoranthene
  205-99-2
  0.048
  0.013
  C
  Benzo(k)fluoranthene
  207-08-9
  0.048
  0.13
  C
  alpha-BHC
  319-84-6
  0.056
  0.0039
  C
  beta-BHC
  319-85-7
  0.091
  0.14
  C
  gamma-BHC (Lindane)
  58-89-9
  0.20
  0.95
  4.4
  Bis(2-chloroethyl) ether
  111-44-4
  0.30
  22
  C
  Bis(2-chloro-1-methylethyl) ether
  108-60-1
  1,400
  4,000
  Bis(2-ethylhexyl) phthalate
  117-81-7
  6
  3.7
  C
  Bis(chloromethyl) ether
  542-88-1
  0.17
  C
  Bromoform
  75-25-2
  44
  1,200
  C
  Butylbenzyl phthalate
  85-68-7
  7,000
  1
  C
  Carbaryl
  63-25-2
  2.1
  2.1
  Carbon tetrachloride
  56-23-5
  5
  50
  C
  Chlordane
  57-74-9
  2
  2.4
  0.0043
  0.0032
  C,P
  Chlorobenzene
  108-90-7
  100
  800
  Chlorodibromomethane
  124-48-1
  4.2
  210
  C
  Chloroform
  67-66-3
  57
  2,000
  Chlorpyrifos
  2921-88-2
  0.083
  0.041
  2-Chloronaphthalene
  91-58-7
  2,800
  1,000
  2-Chlorophenol
  95-57-8
  175
  800
  Chrysene
  218-01-9
  0.048
  1.3
  C
  Demeton
  8065-48-3
  0.1
  Diazinon
  333-41-5
  0.17
  0.17
  2,4-Dichlorophenoxyacetic acid
  94-75-7
  12,000
  Dichlorodiphenyldichloroethane (DDD)
  72-54-8
  0.0012
  C
  Dichlorodiphenyldichloroethylene (DDE)
  72-55-9
  0.00018
  C
  Dichlorodiphenyltrichloroethane (DDT)
  50-29-3
  0.0003
  C,P
  4,4'-DDT and derivatives
  1.0
  0.001
  1.1
  0.001
  Dibenzo(a,h)anthracene
  53-70-3
  0.048
  0.0013
  C
  Dibutyl phthalate
  84-74-2
  3,500
  30
  1,2-Dichlorobenzene
  95-50-1
  600
  3,000
  1,3-Dichlorobenzene
  541-73-1
  469
  10
  1,4-Dichlorobenzene
  106-46-7
  75
  900
  3,3'-Dichlorobenzidine
  91-94-1
  0.78
  1.5
  C
  Dichlorobromomethane
  75-27-4
  5.6
  270
  C
  1,2-Dichloroethane
  107-06-2
  5
  6,500
  C
  1,1-Dichloroethylene
  75-35-4
  7
  20,000
  2,4-Dichlorophenol
  120-83-2
  105
  60
  1,2-Dichloropropane
  78-87-5
  5.0
  310
  C
  1,3-Dichloropropene
  542-75-6
  3.5
  120
  C
  Dieldrin
  60-57-1
  0.022
  0.24
  0.056
  0.000012
  C,P
  Diethyl phthalate
  84-66-2
  28,000
  600
  Dimethyl phthalate
  131-11-3
  350,000
  2,000
  2,4-Dimethylphenol
  105-67-9
  700
  3,000
  Dinitrophenols
  25550-58-7
  1,000
  2,4-Dinitrophenol
  51-28-5
  70
  300
  2,4-Dinitrotoluene
  121-14-2
  1.1
  17
  C
  Dioxin
  1746-01-6
  3.0E-05
  5.1E-08
  C,P
  1,2-Diphenylhydrazine
  122-66-7
  0.44
  2.0
  C
  alpha-Endosulfan
  959-98-8
  62
  0.22
  0.056
  30
  beta-Endosulfan
  33213-65-9
  62
  0.22
  0.056
  40
  Endosulfan sulfate
  1031-07-8
  62
  40
  Endrin
  72-20-8
  2
  0.086
  0.036
  0.03
  Endrin aldehyde
  7421-93-4
  10.5
  1
  Ethylbenzene
  100-41-4
  700
  130
  Fluoranthene
  206-44-0
  1,400
  20
  Fluorene
  86-73-7
  1,400
  70
  Guthion
  86-50-0
  0.01
  Heptachlor
  76-44-8
  0.40
  0.52
  0.0038
  0.000059
  C
  Heptachlor epoxide
  1024-57-3
  0.20
  0.52
  0.0038
  0.00032
  C
  Hexachlorobenzene
  118-74-1
  1
  0.00079
  C,P
  Hexachlorobutadiene
  87-68-3
  4.5
  0.1
  C
  Hexachlorocyclohexane (HCH)-Technical
  608-73-1
  0.1
  C
  Hexachlorocyclopen-tadiene
  77-47-4
  50
  4
  Hexachloroethane
  67-72-1
  25
  1
  C
  Ideno(1,2,3-cd)pyrene
  193-39-5
  0.048
  0.013
  C
  Isophorone
  78-59-1
  368
  18,000
  C
  Malathion
  121-75-5
  0.1
  Methoxychlor
  72-43-5
  0.03
  0.02
  Methyl bromide
  74-83-9
  49
  10,000
  3-Methyl-4-chlorophenol
  59-50-7
  2,000
  2-Methyl-4,6-dinitrophenol
  534-52-1
  14
  30
  Methylene chloride
  75-09-2
  5
  10,000
  C
  Mirex
  2385-85-5
  0.001
  Nitrobenzene
  98-95-3
  18
  600
  Nitrosamines
  Various
  12.4
  C
  Nitrosodibutylamine
  924-16-3
  2.2
  C
  Nitrosodiethylamine
  55-18-5
  12.4
  C
  N-Nitrosodimethylamine
  62-75-9
  0.0069
  30
  C
  N-Nitrosodi-n-propylamine
  621-64-7
  0.050
  5.1
  C
  N-Nitrosodiphenylamine
  86-30-6
  71
  60
  C
  N-Nitrosopyrrolidine
  930-55-2
  340
  C
  Nonylphenol
  84852-15-3
  28
  6.6
  Parathion
  56-38-2
  0.065
  0.013
  Pentachlorobenzene
  608-93-5
  0.1
  Pentachlorophenol
  87-86-5
  1.0
  19
  15
  0.4
  C
  Phenol
  108-95-2
  10,500
  300,000
  Polychlorinated Biphenyls (PCBs)
  1336-36-3
  0.50
  0.014
  2
  0.014
  0.00064
  C,P
  Pyrene
  129-00-0
  1,050
  30
  1,2,4,5-Tetrachlorobenzene
  95-94-3
  0.03
  1,1,2,2-Tetrachloroethane
  79-34-5
  1.8
  30
  C
  Tetrachloroethylene
  127-18-4
  5
  290
  C,P
  Toluene
  108-88-3
  1,000
  520
  Toxaphene
  8001-35-2
  3
  0.73
  0.0002
  0.0071
  C
  1,2-Trans-dichloroethylene
  156-60-5
  100
  4,000
  Tributyltin (TBT)
  Various
  0.46
  0.072
  1,2,4-Trichlorobenzene
  120-82-1
  70
  0.76
  C
  1,1,1-Trichloroethane
  71-55-6
  200
  200,000
  1,1,2-Trichloroethane
  79-00-5
  5
  89
  C
  Trichloroethylene
  79-01-6
  5
  70
  C
  2,4,5-Trichlorophenol
  95-95-4
  600
  2,4,6-Trichlorophenol
  88-06-2
  32
  28
  C
  2-(2,4,5-Trichlorophenoxy)propionic acid (Silvex)
  93-72-1
  400
  Vinyl chloride
  75-01-4
  2
  16
  C
2. (2) Notes applicable to the table of numeric criteria in Paragraph (1) of this subsection.
  1. (a) Where the letter “a” is indicated in a cell, the criterion is hardness-based and can be referenced in Subsection I of 20.6.4.900 NMAC.
3. (b) Where the letter “b” is indicated in a cell, the criterion can be referenced in Subsection C of 20.6.4.900 NMAC.
4. (c) Criteria are in µg/L unless otherwise indicated.
5. (d) Abbreviations are as follows: CAS - chemical abstracts service (see definition for “CAS number” in 20.6.4.7 NMAC); DWS - domestic water supply; Irr/Irr storage- irrigation and irrigation storage; LW - livestock watering; WH - wildlife habitat; HH-OO - human health-organism only; C – criteria based on cancer-causing endpoint; P - persistent toxic pollutant.
6. (e) The criteria are based on analysis of an unfiltered sample unless otherwise indicated. The acute and chronic aquatic life criteria for aluminum are based on analysis of total recoverable aluminum in a sample that is filtered to minimize mineral phases as specified by the department.
7. (f) The criteria listed under human health-organism only (HH-OO) are intended to protect human health when aquatic organisms are consumed from waters containing pollutants. These criteria do not protect the aquatic life itself; rather, they protect the health of humans who ingest fish or other aquatic organisms.
8. (g) The dioxin criteria apply to the sum of the dioxin toxicity equivalents expressed as 2,3,7,8-TCDD dioxin.
9. (h) The criteria for polychlorinated biphenyls (PCBs) apply to the sum of all congeners, to the sum of all homologs or to the sum of all aroclors.
  1. (i) The acute and chronic aquatic life criteria for dissolved aluminum only apply when the concurrent pH is less than 6.5 or greater than 9.0 S.U. If the concurrent pH is between 6.5 and 9.0 S.U. then the hardness-dependent total recoverable aluminum criteria in Paragraphs (1) and (2) of Subsection I of 20.6.4.900 NMAC apply.
K. The criteria for total ammonia consider sensitive freshwater mussel species in the family Unionidae, freshwater non-pulmonate snails, and Oncorhynchus spp. (a genus of fish in the family Salmonidae), hence further protecting the aquatic community. The total ammonia criteria magnitude is measured as Total Ammonia Nitrogen (TAN) mg/L. TAN is the sum of [if gte msEquation 12]><m:oMath><m:sSubSup><m:sSubSupPr><m:ctrlPr></m:ctrlPr></m:sSubSupPr><m:e><m:r>NH</m:r></m:e><m:sub><m:r>4</m:r></m:sub><m:sup><m:r>+</m:r></m:sup></m:sSubSup></m:oMath><![endif]if !msEquation endif and [if gte msEquation 12]><m:oMath><m:sSub><m:sSubPr><m:ctrlPr></m:ctrlPr></m:sSubPr><m:e><m:r>NH</m:r></m:e><m:sub><m:r>3</m:r></m:sub></m:sSub><m:r>.</m:r></m:oMath><![endif]if !msEquation endif TAN mg/L magnitude is derived as a function of pH and temperature (EPA 2013).
L. The acute aquatic life criteria for TAN (mg/L) was derived by the EPA (2013) as the one-hour average concentration of TAN mg/L that shall not be exceeded more than once every three years on average. The EPA acute criterion magnitude was derived using the following equation:
1. (1) Temperature and pH-dependent values of the acute TAN criterion magnitude -when Oncorhynchus spp. absent.
2. (2) Temperature and pH-dependent values for the acute TAN criterion magnitude- when Oncorhynchus spp. are present.
 Temperature (°C) pH 0-14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 6.5 33 33 32 29 27 25 23 21 19 18 16 15 14 13 12 11 9.9 6.6 31 31 30 28 26 24 22 20 18 17 16 14 13 12 11 10 9.5 6.7 30 30 29 27 24 22 21 19 18 16 15 14 13 12 11 9.8 9 6.8 28 28 27 25 23 21 20 18 17 15 14 13 12 11 10 9.2 8.5 6.9 26 26 25 23 21 20 18 17 15 14 13 12 11 10 9.4 8.6 7.9 7.0 24 24 23 21 20 18 17 15 14 13 12 11 10 9.4 8.6 8 7.3 7.1 22 22 21 20 18 17 15 14 13 12 11 10 9.3 8.5 7.9 7.2 6.7 7.2 20 20 19 18 16 15 14 13 12 11 9.8 9.1 8.3 7.7 7.1 6.5 6 7.3 18 18 17 16 14 13 12 11 10 9.5 8.7 8 7.4 6.8 6.3 5.8 5.3 7.4 15 15 15 14 13 12 11 9.8 9 8.3 7.7 7 6.5 6 5.5 5.1 4.7 7.5 13 13 13 12 11 10 9.2 8.5 7.8 7.2 6.6 6.1 5.6 5.2 4.8 4.4 4 7.6 11 11 11 10 9.3 8.6 7.9 7.3 6.7 6.2 5.7 5.2 4.8 4.4 4.1 3.8 3.5 7.7 9.6 9.6 9.3 8.6 7.9 7.3 6.7 6.2 5.7 5.2 4.8 4.4 4.1 3.8 3.5 3.2 3 7.8 8.1 8.1 7.9 7.2 6.7 6.1 5.6 5.2 4.8 4.4 4 3.7 3.4 3.2 2.9 2.7 2.5 7.9 6.8 6.8 6.6 6 5.6 5.1 4.7 4.3 4 3.7 3.4 3.1 2.9 2.6 2.4 2.2 2.1 8.0 5.6 5.6 5.4 5 4.6 4.2 3.9 3.6 3.3 3 2.8 2.6 2.4 2.2 2 1.9 1.7 8.1 4.6 4.6 4.5 4.1 3.8 3.5 3.2 3 2.7 2.5 2.3 2.1 2 1.8 1.7 1.5 1.4 8.2 3.8 3.8 3.7 3.5 3.1 2.9 2.7 2.4 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.3 1.2 8.3 3.1 3.1 3.1 2.8 2.6 2.4 2.2 2 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1 1 8.4 2.6 2.6 2.5 2.3 2.1 2 1.8 1.7 1.5 1.4 1.3 1.2 1.1 1 0.9 0.9 0.8 8.5 2.1 2.1 2.1 1.9 1.8 1.6 1.5 1.4 1.3 1.2 1.1 1 0.9 0.8 0.8 0.7 0.7 8.6 1.8 1.8 1.7 1.6 1.5 1.3 1.2 1.1 1 1 0.9 0.8 0.8 0.7 0.6 0.6 0.5 8.7 1.5 1.5 1.4 1.3 1.2 1.1 1 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.5 8.8 1.2 1.2 1.2 1.1 1 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 8.9 1 1 1 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 9.0 0.88 0.9 0.9 0.8 0.7 0.7 0.6 0.6 0.5 0.5 0.4 0.4 0.4 0.3 0.3 0.3 0.3
 Temperature (°C)
 pH
 0-14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 6.5
 33
 33
 32
 29
 27
 25
 23
 21
 19
 18
 16
 15
 14
 13
 12
 11
 9.9
 6.6
 31
 31
 30
 28
 26
 24
 22
 20
 18
 17
 16
 14
 13
 12
 11
 10
 9.5
 6.7
 30
 30
 29
 27
 24
 22
 21
 19
 18
 16
 15
 14
 13
 12
 11
 9.8
 9
 6.8
 28
 28
 27
 25
 23
 21
 20
 18
 17
 15
 14
 13
 12
 11
 10
 9.2
 8.5
 6.9
 26
 26
 25
 23
 21
 20
 18
 17
 15
 14
 13
 12
 11
 10
 9.4
 8.6
 7.9
 7.0
 24
 24
 23
 21
 20
 18
 17
 15
 14
 13
 12
 11
 10
 9.4
 8.6
 8
 7.3
 7.1
 22
 22
 21
 20
 18
 17
 15
 14
 13
 12
 11
 10
 9.3
 8.5
 7.9
 7.2
 6.7
 7.2
 20
 20
 19
 18
 16
 15
 14
 13
 12
 11
 9.8
 9.1
 8.3
 7.7
 7.1
 6.5
 6
 7.3
 18
 18
 17
 16
 14
 13
 12
 11
 10
 9.5
 8.7
 8
 7.4
 6.8
 6.3
 5.8
 5.3
 7.4
 15
 15
 15
 14
 13
 12
 11
 9.8
 9
 8.3
 7.7
 7
 6.5
 6
 5.5
 5.1
 4.7
 7.5
 13
 13
 13
 12
 11
 10
 9.2
 8.5
 7.8
 7.2
 6.6
 6.1
 5.6
 5.2
 4.8
 4.4
 4
 7.6
 11
 11
 11
 10
 9.3
 8.6
 7.9
 7.3
 6.7
 6.2
 5.7
 5.2
 4.8
 4.4
 4.1
 3.8
 3.5
 7.7
 9.6
 9.6
 9.3
 8.6
 7.9
 7.3
 6.7
 6.2
 5.7
 5.2
 4.8
 4.4
 4.1
 3.8
 3.5
 3.2
 3
 7.8
 8.1
 8.1
 7.9
 7.2
 6.7
 6.1
 5.6
 5.2
 4.8
 4.4
 4
 3.7
 3.4
 3.2
 2.9
 2.7
 2.5
 7.9
 6.8
 6.8
 6.6
 6
 5.6
 5.1
 4.7
 4.3
 4
 3.7
 3.4
 3.1
 2.9
 2.6
 2.4
 2.2
 2.1
 8.0
 5.6
 5.6
 5.4
 5
 4.6
 4.2
 3.9
 3.6
 3.3
 3
 2.8
 2.6
 2.4
 2.2
 2
 1.9
 1.7
 8.1
 4.6
 4.6
 4.5
 4.1
 3.8
 3.5
 3.2
 3
 2.7
 2.5
 2.3
 2.1
 2
 1.8
 1.7
 1.5
 1.4
 8.2
 3.8
 3.8
 3.7
 3.5
 3.1
 2.9
 2.7
 2.4
 2.3
 2.1
 1.9
 1.8
 1.6
 1.5
 1.4
 1.3
 1.2
 8.3
 3.1
 3.1
 3.1
 2.8
 2.6
 2.4
 2.2
 2
 1.9
 1.7
 1.6
 1.4
 1.3
 1.2
 1.1
 1
 1
 8.4
 2.6
 2.6
 2.5
 2.3
 2.1
 2
 1.8
 1.7
 1.5
 1.4
 1.3
 1.2
 1.1
 1
 0.9
 0.9
 0.8
 8.5
 2.1
 2.1
 2.1
 1.9
 1.8
 1.6
 1.5
 1.4
 1.3
 1.2
 1.1
 1
 0.9
 0.8
 0.8
 0.7
 0.7
 8.6
 1.8
 1.8
 1.7
 1.6
 1.5
 1.3
 1.2
 1.1
 1
 1
 0.9
 0.8
 0.8
 0.7
 0.6
 0.6
 0.5
 8.7
 1.5
 1.5
 1.4
 1.3
 1.2
 1.1
 1
 0.9
 0.9
 0.8
 0.7
 0.7
 0.6
 0.6
 0.5
 0.5
 0.5
 8.8
 1.2
 1.2
 1.2
 1.1
 1
 0.9
 0.9
 0.8
 0.7
 0.7
 0.6
 0.6
 0.5
 0.5
 0.4
 0.4
 0.4
 8.9
 1
 1
 1
 0.9
 0.9
 0.8
 0.7
 0.7
 0.6
 0.6
 0.5
 0.5
 0.4
 0.4
 0.4
 0.3
 0.3
 9.0
 0.88
 0.9
 0.9
 0.8
 0.7
 0.7
 0.6
 0.6
 0.5
 0.5
 0.4
 0.4
 0.4
 0.3
 0.3
 0.3
 0.3
Acute TAN Criterion Magnitude for 1-hour average= MIN[if gte msEquation 12]><m:oMath><m:r> </m:r><m:d><m:dPr><span style='font-family: "Cambria Math",serif;mso-ascii-font-family:"Cambria Math";mso-hansi-font-family: "Cambria Math";mso-bidi-font-family:"Times New Roman";font-style:italic; mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:eqArr><m:eqArrPr><m:ctrlPr></m:ctrlPr></m:eqArrPr><m:e><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:f><m:fPr><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>0.275</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>7.204-</m:r><m:r>pH</m:r></m:sup></m:sSup></m:den></m:f><m:r>+</m:r><m:f><m:fPr><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>39</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>pH</m:r><m:r>-</m:r><m:r>7.204 </m:r></m:sup></m:sSup></m:den></m:f></m:e></m:d><m:r>,</m:r></m:e><m:e><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:r>0.</m:r><m:r><m:rPr><m:scr m:val="roman"/><m:sty m:val="p"/></m:rPr>7249x</m:r><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:f><m:fPr><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>0.0114</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>7.204-</m:r><m:r>pH</m:r></m:sup></m:sSup></m:den></m:f><m:r>+</m:r><m:f><m:fPr><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>1.6181</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>pH</m:r><m:r>-</m:r><m:r>7.204 </m:r></m:sup></m:sSup></m:den></m:f></m:e></m:d><m:r><m:rPr><m:scr m:val="roman"/><m:sty m:val="p"/></m:rPr>x</m:r><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:r>23.12×</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>0.036</m:r><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:r>20-</m:r><m:r>T</m:r></m:e></m:d></m:sup></m:sSup></m:e></m:d></m:e></m:d></m:e></m:eqArr></m:e></m:d></m:oMath><![endif]if !msEquation endif T (temperature C) and pH are defined as the paired values associated with the TAN sample.
Acute TAN Criterion Magnitude for 1-hour average=
MIN[if gte msEquation 12]><m:oMath><m:r> </m:r><m:d><m:dPr><span style='font-family: "Cambria Math",serif;mso-ascii-font-family:"Cambria Math";mso-hansi-font-family: "Cambria Math";mso-bidi-font-family:"Times New Roman";font-style:italic; mso-bidi-font-style:normal'><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:eqArr><m:eqArrPr><m:ctrlPr></m:ctrlPr></m:eqArrPr><m:e><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:f><m:fPr><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>0.275</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>7.204-</m:r><m:r>pH</m:r></m:sup></m:sSup></m:den></m:f><m:r>+</m:r><m:f><m:fPr><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>39</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>pH</m:r><m:r>-</m:r><m:r>7.204 </m:r></m:sup></m:sSup></m:den></m:f></m:e></m:d><m:r>,</m:r></m:e><m:e><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:r>0.</m:r><m:r><m:rPr><m:scr m:val="roman"/><m:sty m:val="p"/></m:rPr>7249x</m:r><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:f><m:fPr><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>0.0114</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>7.204-</m:r><m:r>pH</m:r></m:sup></m:sSup></m:den></m:f><m:r>+</m:r><m:f><m:fPr><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>1.6181</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>pH</m:r><m:r>-</m:r><m:r>7.204 </m:r></m:sup></m:sSup></m:den></m:f></m:e></m:d><m:r><m:rPr><m:scr m:val="roman"/><m:sty m:val="p"/></m:rPr>x</m:r><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:r>23.12×</m:r><m:sSup><m:sSupPr><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>0.036</m:r><m:d><m:dPr><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:r>20-</m:r><m:r>T</m:r></m:e></m:d></m:sup></m:sSup></m:e></m:d></m:e></m:d></m:e></m:eqArr></m:e></m:d></m:oMath><![endif]if !msEquation endif
T (temperature C) and pH are defined as the paired values associated with the TAN sample.

Temperature (°C) pH 0-10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 6.5 51 48 44 41 37 34 32 29 27 25 23 21 19 18 16 15 14 13 12 11 9.9 6.6 49 46 42 39 36 33 30 28 26 24 22 20 18 17 16 14 13 12 11 10 9.5 6.7 46 44 40 37 34 31 29 27 24 22 21 19 18 16 15 14 13 12 11 9.8 9 6.8 44 41 38 35 32 30 27 25 23 21 20 18 17 15 14 13 12 11 10 9.2 8.5 6.9 41 38 35 32 30 28 25 23 21 20 18 17 15 14 13 12 11 10 9.4 8.6 7.9 7.0 38 35 33 30 28 25 23 21 20 18 17 15 14 13 12 11 10 9.4 8.6 7.9 7.3 7.1 34 32 30 27 25 23 21 20 18 17 15 14 13 12 11 10 9.3 8.5 7.9 7.2 6.7 7.2 31 29 27 25 23 21 19 18 16 15 14 13 12 11 9.8 9.1 8.3 7.7 7.1 6.5 6 7.3 27 26 24 22 20 18 17 16 14 13 12 11 10 9.5 8.7 8 7.4 6.8 6.3 5.8 5.3 7.4 24 22 21 19 18 16 15 14 13 12 11 9.8 9 8.3 7.7 7 6.5 6 5.5 5.1 4.7 7.5 21 19 18 17 15 14 13 12 11 10 9.2 8.5 7.8 7.2 6.6 6.1 5.6 5.2 4.8 4.4 4 7.6 18 17 15 14 13 12 11 10 9.3 8.6 7.9 7.3 6.7 6.2 5.7 5.2 4.8 4.4 4.1 3.8 3.5 7.7 15 14 13 12 11 10 9.3 8.6 7.9 7.3 6.7 6.2 5.7 5.2 4.8 4.4 4.1 3.8 3.5 3.2 2.9 7.8 13 12 11 10 9.3 8.5 7.9 7.2 6.7 6.1 5.6 5.2 4.8 4.4 4 3.7 3.4 3.2 2.9 2.7 2.5 7.9 11 9.9 9.1 8.4 7.7 7.1 6.6 3 5.6 5.1 4.7 4.3 4 3.7 3.4 3.1 2.9 2.6 2.4 2.2 2.1 8.0 8.8 8.2 7.6 7 6.4 5.9 5.4 5 4.6 4.2 3.9 3.6 3.3 3 2.8 2.6 2.4 2.2 2 1.9 1.7 8.1 7.2 6.8 6.3 5.8 5.3 4.9 4.5 4.1 3.8 3.5 3.2 3 2.7 2.5 2.3 2.1 2 1.8 1.7 1.5 1.4 8.2 6 5.6 5.2 4.8 4.4 4 3.7 3.4 3.1 2.9 2.7 2.4 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.3 1.2 8.3 4.9 4.6 4.3 3.9 3.6 3.3 3.1 2.8 2.6 2.4 2.2 2 1.9 1.7 1.6 1.4 1.3 1.2 1.1 1 0.96 8.4 4.1 3.8 3.5 3.2 3 2.7 2.5 2.3 2.1 2 1.8 1.7 1.5 1.4 1.3 1.2 1.1 1 0.93 0.86 0.79 8.5 3.3 3.1 2.9 2.7 2.4 2.3 2.1 1.9 1.8 1.6 1.5 1.4 1.3 1.2 1.1 0.98 0.9 0.83 0.77 0.71 0.65 8.6 2.8 2.6 2.4 2.2 2 1.9 1.7 1.6 1.5 1.3 1.2 1.1 1 0.96 0.88 0.81 0.75 0.69 0.63 0.58 0.54 8.7 2.3 2.2 2 1.8 1.7 1.6 1.4 1.3 1.2 1.1 1 0.94 0.87 0.8 0.74 0.68 0.62 0.57 0.53 0.49 0.45 8.8 1.9 1.8 1.7 1.5 1.4 1.3 1.2 1.1 1 0.93 0.86 0.79 0.73 0.67 0.62 0.57 0.52 0.48 0.44 0.41 0.37 8.9 1.6 1.5 1.4 1.3 1.2 1.1 1 0.93 0.85 0.79 0.72 0.67 0.61 0.56 0.52 0.48 0.44 0.4 0.37 0.34 0.32 9.0 1.4 1.3 1.2 1.1 1 0.93 0.86 0.79 0.73 0.67 0.62 0.57 0.52 0.48 0.44 0.41 0.37 0.34 0.32 0.29 0.27
Temperature (°C)
pH
0-10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
6.5
51
48
44
41
37
34
32
29
27
25
23
21
19
18
16
15
14
13
12
11
9.9
6.6
49
46
42
39
36
33
30
28
26
24
22
20
18
17
16
14
13
12
11
10
9.5
6.7
46
44
40
37
34
31
29
27
24
22
21
19
18
16
15
14
13
12
11
9.8
9
6.8
44
41
38
35
32
30
27
25
23
21
20
18
17
15
14
13
12
11
10
9.2
8.5
6.9
41
38
35
32
30
28
25
23
21
20
18
17
15
14
13
12
11
10
9.4
8.6
7.9
7.0
38
35
33
30
28
25
23
21
20
18
17
15
14
13
12
11
10
9.4
8.6
7.9
7.3
7.1
34
32
30
27
25
23
21
20
18
17
15
14
13
12
11
10
9.3
8.5
7.9
7.2
6.7
7.2
31
29
27
25
23
21
19
18
16
15
14
13
12
11
9.8
9.1
8.3
7.7
7.1
6.5
6
7.3
27
26
24
22
20
18
17
16
14
13
12
11
10
9.5
8.7
8
7.4
6.8
6.3
5.8
5.3
7.4
24
22
21
19
18
16
15
14
13
12
11
9.8
9
8.3
7.7
7
6.5
6
5.5
5.1
4.7
7.5
21
19
18
17
15
14
13
12
11
10
9.2
8.5
7.8
7.2
6.6
6.1
5.6
5.2
4.8
4.4
4
7.6
18
17
15
14
13
12
11
10
9.3
8.6
7.9
7.3
6.7
6.2
5.7
5.2
4.8
4.4
4.1
3.8
3.5
7.7
15
14
13
12
11
10
9.3
8.6
7.9
7.3
6.7
6.2
5.7
5.2
4.8
4.4
4.1
3.8
3.5
3.2
2.9
7.8
13
12
11
10
9.3
8.5
7.9
7.2
6.7
6.1
5.6
5.2
4.8
4.4
4
3.7
3.4
3.2
2.9
2.7
2.5
7.9
11
9.9
9.1
8.4
7.7
7.1
6.6
3
5.6
5.1
4.7
4.3
4
3.7
3.4
3.1
2.9
2.6
2.4
2.2
2.1
8.0
8.8
8.2
7.6
7
6.4
5.9
5.4
5
4.6
4.2
3.9
3.6
3.3
3
2.8
2.6
2.4
2.2
2
1.9
1.7
8.1
7.2
6.8
6.3
5.8
5.3
4.9
4.5
4.1
3.8
3.5
3.2
3
2.7
2.5
2.3
2.1
2
1.8
1.7
1.5
1.4
8.2
6
5.6
5.2
4.8
4.4
4
3.7
3.4
3.1
2.9
2.7
2.4
2.3
2.1
1.9
1.8
1.6
1.5
1.4
1.3
1.2
8.3
4.9
4.6
4.3
3.9
3.6
3.3
3.1
2.8
2.6
2.4
2.2
2
1.9
1.7
1.6
1.4
1.3
1.2
1.1
1
0.96
8.4
4.1
3.8
3.5
3.2
3
2.7
2.5
2.3
2.1
2
1.8
1.7
1.5
1.4
1.3
1.2
1.1
1
0.93
0.86
0.79
8.5
3.3
3.1
2.9
2.7
2.4
2.3
2.1
1.9
1.8
1.6
1.5
1.4
1.3
1.2
1.1
0.98
0.9
0.83
0.77
0.71
0.65
8.6
2.8
2.6
2.4
2.2
2
1.9
1.7
1.6
1.5
1.3
1.2
1.1
1
0.96
0.88
0.81
0.75
0.69
0.63
0.58
0.54
8.7
2.3
2.2
2
1.8
1.7
1.6
1.4
1.3
1.2
1.1
1
0.94
0.87
0.8
0.74
0.68
0.62
0.57
0.53
0.49
0.45
8.8
1.9
1.8
1.7
1.5
1.4
1.3
1.2
1.1
1
0.93
0.86
0.79
0.73
0.67
0.62
0.57
0.52
0.48
0.44
0.41
0.37
8.9
1.6
1.5
1.4
1.3
1.2
1.1
1
0.93
0.85
0.79
0.72
0.67
0.61
0.56
0.52
0.48
0.44
0.4
0.37
0.34
0.32
9.0
1.4
1.3
1.2
1.1
1
0.93
0.86
0.79
0.73
0.67
0.62
0.57
0.52
0.48
0.44
0.41
0.37
0.34
0.32
0.29
0.27
M. The chronic aquatic life criteria for TAN (mg/L) was derived by the EPA (2013) as a thirty-day rolling average concentration of TAN mg/L that shall not be exceeded more than once every three years on average. In addition, the highest four-day average within the 30-day averaging period should not be more than 2.5 times the CCC (e.g., 2.5 x 1.9 mg TAN/L at pH 7 and 20°C, or 4.8 mg TAN/L) more than once in three years on average. The EPA chronic criterion magnitude was derived using the following equation:
Chronic TAN Criterion Magnitude for 30-day average= [if gte msEquation 12]><m:oMathPara><m:oMathParaPr><m:jc m:val="center"/></m:oMathParaPr><m:oMath><m:r>0.8876×</m:r><m:d><m:dPr><span style='font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size: 10.0pt;font-family:"Cambria Math",serif;mso-ascii-font-family:"Cambria Math"; mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style: normal'><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:f><m:fPr><span style='font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size: 10.0pt;font-family:"Cambria Math",serif;mso-ascii-font-family:"Cambria Math"; mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style: normal'><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>0.0278</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><span style='font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size: 10.0pt;font-family:"Cambria Math",serif;mso-ascii-font-family:"Cambria Math"; mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style: normal'><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>7.688-</m:r><m:r>pH</m:r></m:sup></m:sSup></m:den></m:f><m:r>+</m:r><m:f><m:fPr><span style='font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size: 10.0pt;font-family:"Cambria Math",serif;mso-ascii-font-family:"Cambria Math"; mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style: normal'><m:ctrlPr></m:ctrlPr></m:fPr><m:num><m:r>1.1994</m:r></m:num><m:den><m:r>1+</m:r><m:sSup><m:sSupPr><span style='font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size: 10.0pt;font-family:"Cambria Math",serif;mso-ascii-font-family:"Cambria Math"; mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style: normal'><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>pH</m:r><m:r>-</m:r><m:r>7.688</m:r></m:sup></m:sSup></m:den></m:f></m:e></m:d><m:r>×</m:r><m:d><m:dPr><span style='font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size: 10.0pt;font-family:"Cambria Math",serif;mso-ascii-font-family:"Cambria Math"; mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style: normal'><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:r>2.126×</m:r><m:sSup><m:sSupPr><span style='font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size: 10.0pt;font-family:"Cambria Math",serif;mso-ascii-font-family:"Cambria Math"; mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style: normal'><m:ctrlPr></m:ctrlPr></m:sSupPr><m:e><m:r>10</m:r></m:e><m:sup><m:r>0.028×</m:r><m:d><m:dPr><span style='font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size: 10.0pt;font-family:"Cambria Math",serif;mso-ascii-font-family:"Cambria Math"; mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style: normal'><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:r>20-</m:r><m:r>MAX</m:r><m:d><m:dPr><span style='font-size:10.0pt;mso-ansi-font-size:10.0pt;mso-bidi-font-size: 10.0pt;font-family:"Cambria Math",serif;mso-ascii-font-family:"Cambria Math"; mso-hansi-font-family:"Cambria Math";font-style:italic;mso-bidi-font-style: normal'><m:ctrlPr></m:ctrlPr></m:dPr><m:e><m:r>T</m:r><m:r>,7</m:r></m:e></m:d></m:e></m:d></m:sup></m:sSup></m:e></m:d></m:oMath></m:oMathPara><![endif]if !msEquation endif T (temperature °C ) and pH are defined as the paired values associated with the TAN sample.
Chronic TAN Criterion Magnitude for 30-day average=
T (temperature °C ) and pH are defined as the paired values associated with the TAN sample.
Temperature and pH-Dependent Values of the Chronic TAN Criterion Magnitude.
Temperature (°C) pH 0-7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 6.5 4.9 4.6 4.3 4.1 3.8 3.6 3.3 3.1 2.9 2.8 2.6 2.4 2.3 2.1 2 1.9 1.8 1.6 1.5 1.5 1.4 1.3 1.2 1.1 6.6 4.8 4.5 4.3 4 3.8 3.5 3.3 3.1 2.9 2.7 2.5 2.4 2.2 2.1 2 1.8 1.7 1.6 1.5 1.4 1.3 1.3 1.2 1.1 6.7 4.8 4.5 4.2 3.9 3.7 3.5 3.2 3 2.8 2.7 2.5 2.3 2.2 2.1 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.2 1.1 6.8 4.6 4.4 4.1 3.8 3.6 3.4 3.2 3 2.8 2.6 2.4 2.3 2.1 2 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.1 6.9 4.5 4.2 4 3.7 3.5 3.3 3.1 2.9 2.7 2.5 2.4 2.2 2.1 2 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.2 1.1 1 7.0 4.4 4.1 3.8 3.6 3.4 3.2 3 2.8 2.6 2.4 2.3 2.2 2 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.1 1 7.1 4.2 3.9 3.7 3.5 3.2 3 2.8 2.7 2.5 2.3 2.2 2.1 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.2 1.1 1 1 7.2 4 3.7 3.5 3.3 3.1 2.9 2.7 2.5 2.4 2.2 2.1 2 1.8 1.7 1.6 1.5 1.4 1.3 1.3 1.2 1.1 1 1 0.9 7.3 3.8 3.5 3.3 3.1 2.9 2.7 2.6 2.4 2.2 2.1 2 1.8 1.7 1.6 1.5 1.4 1.3 1.3 1.2 1.1 1 1 0.9 0.9 7.4 3.5 3.3 3.1 2.9 2.7 2.5 2.4 2.2 2.1 2 1.8 1.7 1.6 1.5 1.4 1.3 1.3 1.2 1.1 1 1 0.9 0.9 0.8 7.5 3.2 3 2.8 2.7 2.5 2.3 2.2 2.1 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.2 1.1 1 1 0.9 0.8 0.8 0.7 7.6 2.9 2.8 2.6 2.4 2.3 2.1 2 1.9 1.8 1.6 1.5 1.4 1.4 1.3 1.2 1.1 1.1 1 0.9 0.9 0.8 0.8 0.7 0.7 7.7 2.6 2.4 2.3 2.2 2 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.1 1 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 7.8 2.3 2.2 2.1 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.2 1.1 1 1 0.9 0.8 0.8 0.7 0.7 0.7 0.6 0.6 0.5 7.9 2.1 1.9 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.2 1.1 1 1 0.9 0.8 0.8 0.7 0.7 0.7 0.6 0.6 0.5 0.5 0.5 8.0 1.8 1.7 1.6 1.5 1.4 1.3 1.2 1.1 1.1 1 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.6 0.5 0.5 0.4 0.4 0.4 8.1 1.5 1.5 1.4 1.3 1.2 1.1 1.1 1 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 8.2 1.3 1.2 1.2 1.1 1 1 0.9 0.8 0.8 0.7 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 8.3 1.1 1.1 1 0.9 0.9 0.8 0.8 0.7 0.7 0.6 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 8.4 1 0.9 0.8 0.8 0.7 0.7 0.7 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 8.5 0.8 0.8 0.7 0.7 0.6 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 8.6 0.7 0.6 0.6 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 8.7 0.6 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 8.8 0.5 0.5 0.4 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 8.9 0.4 0.4 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 9.0 0.4 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1
Temperature (°C)
pH
0-7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
6.5
4.9
4.6
4.3
4.1
3.8
3.6
3.3
3.1
2.9
2.8
2.6
2.4
2.3
2.1
2
1.9
1.8
1.6
1.5
1.5
1.4
1.3
1.2
1.1
6.6
4.8
4.5
4.3
4
3.8
3.5
3.3
3.1
2.9
2.7
2.5
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.3
1.2
1.1
6.7
4.8
4.5
4.2
3.9
3.7
3.5
3.2
3
2.8
2.7
2.5
2.3
2.2
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
6.8
4.6
4.4
4.1
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.3
2.1
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
6.9
4.5
4.2
4
3.7
3.5
3.3
3.1
2.9
2.7
2.5
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
7.0
4.4
4.1
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.3
2.2
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
1
7.1
4.2
3.9
3.7
3.5
3.2
3
2.8
2.7
2.5
2.3
2.2
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
1
7.2
4
3.7
3.5
3.3
3.1
2.9
2.7
2.5
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.3
1.2
1.1
1
1
0.9
7.3
3.8
3.5
3.3
3.1
2.9
2.7
2.6
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.3
1.2
1.1
1
1
0.9
0.9
7.4
3.5
3.3
3.1
2.9
2.7
2.5
2.4
2.2
2.1
2
1.8
1.7
1.6
1.5
1.4
1.3
1.3
1.2
1.1
1
1
0.9
0.9
0.8
7.5
3.2
3
2.8
2.7
2.5
2.3
2.2
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
1
0.9
0.8
0.8
0.7
7.6
2.9
2.8
2.6
2.4
2.3
2.1
2
1.9
1.8
1.6
1.5
1.4
1.4
1.3
1.2
1.1
1.1
1
0.9
0.9
0.8
0.8
0.7
0.7
7.7
2.6
2.4
2.3
2.2
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
1
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
7.8
2.3
2.2
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
1
0.9
0.8
0.8
0.7
0.7
0.7
0.6
0.6
0.5
7.9
2.1
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.2
1.1
1
1
0.9
0.8
0.8
0.7
0.7
0.7
0.6
0.6
0.5
0.5
0.5
8.0
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
1.1
1
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.4
0.4
0.4
8.1
1.5
1.5
1.4
1.3
1.2
1.1
1.1
1
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
8.2
1.3
1.2
1.2
1.1
1
1
0.9
0.8
0.8
0.7
0.7
0.7
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
8.3
1.1
1.1
1
0.9
0.9
0.8
0.8
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
8.4
1
0.9
0.8
0.8
0.7
0.7
0.7
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
8.5
0.8
0.8
0.7
0.7
0.6
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
8.6
0.7
0.6
0.6
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
8.7
0.6
0.5
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
8.8
0.5
0.5
0.4
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.1
8.9
0.4
0.4
0.4
0.3
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
9.0
0.4
0.3
0.3
0.3
0.3
0.3
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1
0.1

[20.6.4.900 NMAC - Rp 20 NMAC 6.1.3100, 10/12/2010; A, 10/11/2002; A, 5/23/2005; A, 7/17/2005; A, 12/1/2010; A, 3/2/2017; A, 4/23/2022]