SB167 S EIM AM #1 1-22

Wilkinson  7879

 

The Committee on Energy, Industry and Mining moved to amend the bill on page one, section one, line five, after the word “authorized” by striking out the period and adding the following: with the following amendment:

On pages thirty-eight through fifty-five, by striking out all of Appendix E, Table 1, and inserting in lieu thereof a new Appendix E, Table 1, to read as follows:

 

 

Adopted

Rejected            


8.1 Dissolved Aluminum (ug/l)

For water with pH <6.5 or >9.0

750xCF5

750xCF5

750xCF5

87xCF5

 

 

 

8.1.1 Dissolved Aluminum (ug/l)

For water with pH ≥ 6.5 and ≤ 9.0, the four-day average concentration of dissolved aluminum determined by the following equatione:

Al = e(1.3695[ln(hardness)]+0.9121) x CF5

 

X

 

X

 

 

 

8.1.2 Dissolved Aluminum (ug/l)

For water with pH ≥ 6.5 and ≤ 9.0, the one-hour average concentration of dissolved aluminum determined by the following equatione:

Al = e(1.3695[ln(hardness)]+1.8268) x CF5

X

 

X

 

 

 

 

8.2.  Acute and chronic aquatic life criteria for ammonia shall be determined using the National Criterion for Ammonia in Fresh Waterd from USEPA’s 1999 Update of Ambient Water Quality Criteria for Ammonia (EPA-822-R-99-014, December 1999)

X

X

X

X

 

 

 

8.3  Antimony (ug/l)

 

 

 

 

 

4300

14

 

8.4  Arsenic (ug/l)

    

 

 

 

 

10

10

 

100

8.4.1 Dissolved Trivalent Arsenic  (ug/l)

    

340

 

150

 

340

 

150

 

 

 

 

 

8.5  Barium (mg/l)

    

 

 

 

 

 

1.0

 

8.6  Beryllium (ug/l)

130

 

130

 

 

4.0

 

8.7 Cadmium (ug/l)

        Hardness                       Soluble Cd

(mg/l CaCO3)

        0 - 35                             1.0

        36 - 75                           2.0

        76 - 150                         5.0

        > 150                             10.0

 

 

 

 

 

X

 

8.7.1  10 ug/l in the Ohio River (O Zone 1) main stem (see section 7.1.d, herein)

 

 

 

 

 

X

 

8.7.2 The four-day average concentration of dissolved cadmium determined by the following equation:

Cd = e(0.7409[ln(hardness)]-4.719) x CF5

 

X

 

X

 

 

 

 

 

 

8.7.3 The one-hour average concentration of  dissolved cadmium determined by the following equation:

Cd = e(1.0166[ln(hardness)]-3.924) x CF5

X

 

X

 

 

 

 

8.8  Chloride (mg/l)

860

230

860

230

250

250

 

8.9.1 Chromium, dissolved hexavalent (ug/l): 

16

11

16

7.2

 

50

 

8.9.2  Chromium, trivalent (ug/l) The one-hour average concentration of dissolved trivalent chromium determined by the following equation:

CrIII = e(0.8190[ln(hardness)]+3.7256) x CF5

X

 

X

 

 

 

 

8.9.3 The four-day average concentration of dissolved trivalent chromium determined by the following concentration:

CrIII = e(0.8190[ln(hardness)]+0.6848) x CF5

 

X

 

X

 

 

 

8.10  Copper (ug/l)   

 

 

 

 

 

1000

 

8.10.1 The four-day average concentration of  dissolved copper determined by the following equationa:

Cu = e(0.8545[ln(hardness)]-1.702) x CF5

 

X

 

X

 

 

 

8.10.2  The one-hour average concentration of dissolved copper determined by the following equationa:

Cu = e(0.9422[ln(hardness)]-1.700) x CF5

X

 

X

 

 

 

 

8.11. Cyanide (ug/l)

(As free cyanide HCN+CN-)

 

22

5.0

22

5.0

5.0

5.0

 

8.11.2 Cyanide (total) (ug/l)

 

 

 

970

4

 

8.12 Dissolved Oxygenc: not less than 5 mg/l at any time.

X

 

 

X

X

X

8.12.1 Ohio River main stem - the average concentration shall not be less than 5.0 mg/l per calendar day and shall not be less than 4.0 mg/l at any time or place outside any established mixing zone - provided that a minimum of 5.0 mg/l at any time is maintained during the April 15-June 15 spawning season.

X

 

 

 

 

 

8.12.2 Not less than 7.0 mg/l in spawning areas and in no case less than 6.0 mg/l at any time.          

 

 

X

 

 

 

8.13  Fecal Coliform:

Maximum allowable level of fecal coliform content for Water Contact Recreation (either MPN or MF) shall not exceed 200/100 ml as a monthly geometric mean based on not less than 5 samples per month; nor to exceed

400 /100 ml in more than ten percent of all samples taken during the month.

 

 

 

 

X

X

 

8.13.1  Ohio River main stem (zone 1) - During the non-recreational season (November through April only) the maximum allowable level of fecal coliform for the Ohio River (either MPN or MF) shall not exceed 2000/100 ml as a monthly geometric mean based on not less than 5 samples per month.

 

 

 

 

X

X

 

8.14  Fluoride (mg/l)          

 

 

 

 

 

 

1.4

 

8.14.1 Not to exceed 2.0 for category D1 uses.

 

 

 

 

 

 

X

8.15  Ironc (mg/l)                 

 

1.5

 

1.0

 

1.5

 

8.16  Lead (ug/l)                  

 

 

 

 

 

50

 

8.16.1 The four-day average concentration of  dissolved lead determined by the following equationa:

Pb = e(1.273[ln(hardness)]-4.705)x CF5

 

X

 

X

 

 

 

8.16.2  The one-hour average concentration of  dissolved lead determined by the following equationa:

Pb = e(1.273[ln(hardness)]-1.46) x CF5

X

 

X

 

 

 

 

8.17 Manganese (mg/l)  ( see §6.2.d)

 

 

 

 

 

1.0

 


8.18  Mercury

The total organism body burden of any aquatic species shall not exceed 0.5 ug/g as methylmercury.

 

 

 

 

 

 

 

 

 

0.5

 

0.5

 

 

8.18.1  Total mercury in any unfiltered water sample (ug/l):

2.4

 

2.4

 

0.15

0.14

 

8.18.2  Methylmercury (water column) (ug/l):

 

.012

 

.012

 

 

 

Nickel (ug/l)

 

 

 

 

 

4600

510

 

8.19.1  The four-day average concentration of dissolved nickel determined by the following equationa:

Ni = e(0.846[ln(hardness)]+0.0584) x CF5

 

X

 

X

 

 

 

8.19.2  The one-hour average concentration of  dissolved nickel determined by the following equationa:

Ni = e(0.846[ln(hardness)]+2.255) x CF5

 

 

 

X

 

 

 

 

X

 

 

 

 

8.20  Nitrate (as Nitrate-N) (mg/l)

 

 

 

 

 

10

 

8.21  Nitrite (as Nitrite-N)  (mg/l)

 

1.0

.060

 

 

 

8.22 Nutrients

 

 

 

 

 

 

 

Chlorophyll –a (µg/l)  (see §47-2-8.3)

 

 

 

 

 

 

 

Total Phosphorus (µg/l) (see §47-2-8.3)

 

 

 

 

 

 

 

 

8.23 Organics    

 

 

 

 

 

 

 

Acenaphthene (ug/l)

 

 

 

 

190

130

 

Acrylonitrileb (ug/l)

 

 

 

 

15

0.061

 

Aldrinb (ng/l)

3.0

 

3.0

 

0.0014

0.0014

0.071

alpa-BHC (alpha- Hexachloro-

cyclohexane)b (ug/l)

 

 

 

 

0.00084

0.00073

 

Anthracene (ug/l)

 

 

 

 

800

570

 

Benzeneb (ug/l)

 

 

 

 

51

0.66

 

Benzo(a) Anthraceneb (ug/l)

 

 

 

 

0.0028

0.0027

 

Benzo(a) Pyreneb (ug/l)

 

 

 

 

0.00028

0.00027

 

Benzo(b) Fluorantheneb (ug/l)

 

 

 

 

0.0028

0.0027

 

Benzo(k) Fluorantheneb (ug/l)

 

 

 

 

0.028

0.027

 

beta-BHC(beta- Hexachloro-

cyclohexane)b (ug/l)

 

 

 

 

0.029

0.011

 

Bis(2-Ethylhexyl) Phthalateb (ug/l)

 

 

 

 

0.81

0.61

 

Bromoformb (ug/l)

 

 

 

 

240

7.2

 

Butylbenzyl Phthalateb (ug/l)

 

 

 

 

0.22

0.22

 

Carbon tetrachlorideb (ug/l)

 

 

 

 

10

0.5

 

Chlordaneb (ng/l)

2400

4.3

2400

4.3

0.60

0.59

0.46

Chlorobenzene (mg/l)

 

 

 

 

1.7

0.12

 

Chloroformb  (ug/l)

 

 

 

 

4,800

66

 

Chryseneb (ug/l)

 

 

 

 

0.28

0.27

 

DDTb (ng/l)

1100

1.0

1100

1.0

0.05

0.05

0.024

Dibenzo(a,h)Anthraceneb (ug/l)

 

 

 

 

0.00028

0.00027

 

Dichlorobromomethaneb (ug/l)

 

 

 

 

56

0.96

 

Diethyl Phthalate (ug/l)

 

 

 

 

1,400

1,100

 

Dieldrinb (ng/l)

2500

1.9

2500

1.9

0.0022

0.0022

0.071

Dimethyl Phthalate (ug/l)

 

 

 

 

4,000

3,800

 

Di-n-Butyl Phthalate (ug/l)

 

 

 

 

60

50

 

Dioxin (2,3,7,8- TCDD)b  (pg/l)

 

 

 

 

0.014

0.013

0.014

Endrin (ng/l)

180

2.3

180

2.3

64

63

2.3

Ethylbenzene (mg/l)

 

 

 

 

0.26

0.094

 

Fluoranthene (ug/l)

 

 

 

 

43

37

 

Fluorene (ug/l)

 

 

 

 

130

90

 

gamma-BHC (gamma- Hexachloro-

cyclohexane)b (ug/l)

2.0

0.08

2.0

0.08

9.1

8.2

 

Heptachlorb (ng/l)

520

3.8

520

3.8

0.011

0.0011

 

Hexachlorobenzeneb (ng/l)

 

 

 

 

0.15

0.15

 

Indeno(1,2,3-cd)Pyreneb (ug/l)

 

 

 

 

0.0028

0.0027

 

Methoxychlor (ug/l)

 

0.03

 

0.03

0.04

0.03

0.03

Methyl Bromide (ug/l)

 

 

 

 

25,000

130

 

Methylene Chlorideb (ug/l)

 

 

 

 

2,700

17

 

PCBb (ng/l)

 

14.0

 

14.0

0.045

0.044

0.045

Phthalate esters6 (ug/l)

 

3.0

 

3.0

 

 

 

Pyrene (ug/l)

 

 

 

 

60

40

 

Tetrachloroethyleneb (ug/l)

 

 

 

 

59

13

 

Tolueneb (mg/l)

 

 

 

 

1.1

0.061

 

Toxapheneb (ng/l)

730

0.2

730

0.2

1.5

1.4

0.73

Trichloroethyleneb (ug/l)

 

 

 

 

14

0.6

 

Vinyl chlorideb  (chloroethene) (ug/l)

 

 

 

 

3.4

0.022

 

1,1,1- trichloroethaneb (mg/l)

 

 

 

 

370

13

 

1,1,2,2-tetrachloroethane (ug/l)

 

 

 

 

6

0.2

 

1,1-dichloroethyleneb (ug/l)

 

 

 

 

34,000

330

 

1,2-dichlorobenzene (mg/l)

 

 

 

 

7

2

 

1,2-dichloroethaneb (ug/l)

 

 

 

 

1,400

10

 

1,3-dichlorobenzene (mg/l)

 

 

 

 

0.027

0.009

 

1,4-dichlorobenzene (mg/l)

 

 

 

 

1.8

0.4

 

2,4-dinitrotolueneb (ug/l)

 

 

 

 

3.5

0.049

 

2-Chloronaphthalene (ug/l)

 

 

 

 

2,500

1,200

 

2-methyl-4,6-Dinitrophenol (ug/l)

 

 

 

 

56

2

 

8.23 Organics

 

 

 

 

 

 

 

Chlordaneb (ng/l)

2400

4.3

2400

4.3

0.46

0.46

0.46

DDTb (ng/l)

1100

1.0

1100

1.0

0.024

0.024

0.024

Aldrinb (ng/l)

3.0

 

3.0

 

0.071

0.071

0.071

Dieldrinb (ng/l)

2500

1.9

2500

1.9

0.071

0.071

0.071

Endrin (ng/l)

180

2.3

180

2.3

2.3

2.3

2.3

Toxapheneb (ng/l)

730

0.2

730

0.2

0.73

0.73

0.73

PCBb (ng/l)

 

14.0

 

14.0

0.045

0.044

0.045

Methoxychlor (ug/l)

 

0.03

 

0.03

0.03

0.03

0.03

Dioxin (2,3,7,8- TCDD)b  (pg/l)

 

 

 

 

0.014

0.013

0.014

Acrylonitrileb (ug/l)

 

 

 

 

0.66

0.059

 

Benzeneb (ug/l)

 

 

 

 

51

0.66

 

1,2-dichlorobenzene (mg/l)

 

 

 

 

17

2.7

 

1,3-dichlorobenzene (mg/l)

 

 

 

 

2.6

0.4

 

1,4-dichlorobenzene (mg/l)

 

 

 

 

2.6

0.4

 

2,4-dinitrotolueneb (ug/l)

 

 

 

 

9.1

0.11

 

Hexachlorobenzeneb (ng/l)

 

 

 

 

0.77

0.72

 

Carbon tetrachlorideb (ug/l)

 

 

 

 

4.4

0.25

 

Chloroformb  (ug/l)

 

 

 

 

470

5.7

 

Bromoformb (ug/l)

 

 

 

 

140

4.3

 

Dichlorobromomethaneb (ug/l)

 

 

 

 

17

0.55

 

Methyl Bromide (ug/l)

 

 

 

 

1500

47

 

Methylene Chlorideb (ug/l)

 

 

 

 

590

4.6

 

1,2-dichloroethaneb (ug/l)

 

 

 

 

99

0.035

 

1,1,1- trichloroethaneb (mg/l)

 

 

 

 

 

12

 

1,1,2,2-tetrachloroethane (ug/l)

 

 

 

 

11

0.17

 

1,1-dichloroethyleneb (ug/l)

 

 

 

 

3.2

0.03

 

Trichloroethyleneb (ug/l)

 

 

 

 

81

2.7

 

Tetrachloroethyleneb (ug/l)

 

 

 

 

8.85

0.8

 

Tolueneb (mg/l)

 

 

 

 

200

6.8

 

Acenaphthene (ug/l)

 

 

 

 

990

670

 

Anthracene (ug/l)

 

 

 

 

40,000

8,300

 

Benzo(a) Anthraceneb (ug/l)

 

 

 

 

0.018

0.0038

 

Benzo(a) Pyreneb (ug/l)

 

 

 

 

0.018

0.0038

 

Benzo(b) Fluorantheneb (ug/l)

 

 

 

 

0.018

0.0038

 

Benzo(k) Fluorantheneb (ug/l)

 

 

 

 

0.018

0.0038

 

Chryseneb (ug/l)

 

 

 

 

0.018

0.0038

 

Dibenzo(a,h)Anthraceneb (ug/l)

 

 

 

 

0.018

0.0038

 

Fluorene (ug/l)

 

 

 

 

5300

1100

 

Indeno(1,2,3-cd)Pyreneb (ug/l)

 

 

 

 

0.018

0.0038

 

Pyrene (ug/l)

 

 

 

 

4000

830

 

2-Chloronaphthalene (ug/l)

 

 

 

 

1600

1000

 

Phthalate esters6 (ug/l)

 

3.0

 

3.0

 

 

 

Vinyl chlorideb  (chloroethene) (ug/l)

 

 

 

 

525

2.0

 

alpa-BHC (alpha- Hexachloro-

cyclohexane)b (ug/l)

 

 

 

 

0.013

.0039

 

beta-BHC(beta- Hexachloro-

cyclohexane)b (ug/l)

 

 

 

 

0.046

0.014

 

gamma-BHC (gamma- Hexachloro-

cyclohexane)b (ug/l)

2.0

0.08

2.0

0.08

0.063

0.019

 

Chlorobenzene (mg/l)

 

 

 

 

21

0.68

 

Ethylbenzene (mg/l)

 

 

 

 

29

3.1

 

Heptachlorb (ng/l)

520

3.8

520

3.8

0.21

0.21

 

2-methyl-4,6-Dinitrophenol (ug/l)

 

 

 

 

765

13.4

 

Fluoranthene (ug/l)

 

 

 

 

370

300

 

8.23.1

When the specified criteria for organic chemicals listed in §8.23 are less than the practical laboratory quantification level, instream values will be calculated from discharge concentrations and flow rates, where applicable.

 

 

 

 

 

 

 

8.24 pHc

No values below 6.0 nor above 9.0.  Higher values due to photosynthetic activity may be tolerated. 

X

X

X

X

X

X

X

8.25 Phenolic Materials

 

 

 

 

 

 

 

8.25.1 Phenol (ug/l)

 

 

 

 

4,600,000 570,000

21,000 4,000

 

8.25.2  2-Chlorophenol (ug/l)

 

 

 

 

400 1,700

120 33

 

8.25.3   2,4-Dichlorophenol (ug/l)

 

 

 

 

790 120

93 17

 

8.25.4    2,4-Dimethylphenol (ug/l)

 

 

 

 

2300 5,300

540 130

 

8.25.5    2,4-Dinitrophenol (ug/l)

 

 

 

 

14,000 740

70 13

 

8.25.6  Pentachlorophenolb (ug/l)

 

 

 

 

8.2 0.07

0.28 0.04

 

8.25.6.a  The one-hour average concentration of pentachlorophenol determined by the following equation: exp(1.005(pH)-4.869)

X

 

X

 

 

 

 

8.25.6.b   The 4-day average concentration of pentachlorophenol determined by the following equation:

exp(1.005(pH)-5.134).

 

X

 

X

 

 

 

8.25.7    2,4,6-Trichlorophenolb (ug/l)

 

 

 

 

6.5 5.8

2.1 2

 

8.26  Radioactivity:

Gross Beta activity not to exceed 1000 picocuries per liter (pCi/l), nor shall activity from dissolved strontium-90 exceed 10 pCi/l, nor shall activity from dissolved alpha emitters exceed 3 pCi/l.

X

X

X

X

X

8.26.1

Gross total alpha particle activity (including radium-226 but excluding radon and uranium shall not exceed 15 pCi/l and combined radium-226 and radium-228 shall not exceed 5pCi/l; provided that the specific determination of radium-226 and radium-228 are not required if dissolved particle activity does not exceed 5pCi/l; the concentration of tritium shall not exceed 20,000 pCi/l; the concentration of total strontium-90 shall not exceed 8 pCi/l in the Ohio River main stem.

X

X

X

X

X


8.27  Selenium (ug/l) Water Column Concentration f

 

5

 

5

 

50

 

8.27.1  Selenium (ug/g) g (based on instantaneous measurement)

8.0 ug/g Fish Whole-Body Concentration

or

11.3 ug/g Fish Muscle (skinless, boneless filet)

 

 

X

 

X

 

 

 

8.27.2  Selenium (ug/g) Fish Egg/Ovary Concentration h (based on instantaneous measurement)

 

15.8

 

15.8

 

 

 


8.28  Silver (ug/l)

        Hardness                       Silver

        0-50                                1

        51-100                           4

        101-200                         12

        >201                               24

 

 

 

X

 

X

 

8.28.1

        0-50                                1

        51-100                           4

        101-200                         12

        201-400                         24

        401-500                         30

        501-600                         43

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

8.28.2  The one-hour average concentration of  dissolved silver determined by the following equation:

Ag=e(1.72[ln(hardness)]-6.59) x CF5

X

 

X

 

 

 

 

8.29 Temperature

Temperature rise shall be limited to no more than 5oF above natural temperature, not to exceed 87oF at any time during months of May through November and not to exceed 73oF at any time during the months of December through April.  During any month of the year, heat should not be added to a stream in excess of the amount that will raise the temperature of the water more than 5oF above natural temperature.  In lakes and reservoirs, the temperature of the epilimnion should not be raised more than 3oF by the addition of heat of artificial origin.  The normal daily and seasonable temperature fluctuations that existed before the addition of heat due to other natural causes should be maintained. 

X

 

 

 

 

 

8.29.1  For the Kanawha River Main Stem (K-1):

Temperature rise shall be limited to no more than 5oF above natural temperature, not to exceed 90oF in any case.

X

 

 

 

 

 

8.29.2 No heated effluents will be discharged in the vicinity of spawning areas.  The maximum temperatures for cold waters are expressed in the following table:

        Daily                              Hourly

        Mean oF                         Max oF

Oct-Apr          50                       55

Sep-&May    58                       62

Jun-Aug         66                       70

 

 

X

 

 

 

8.29.3 For Ohio River Main Stem (01) (see section 7.1.d, herein):

                             Period       Inst.

Dates                  Ave.           Max.

Jan 1-31             45oF           50oF

February            45               50

March 1-15       51               56

March 16-31     54               59

April 1-15         58               64

April 16-30       64               69

May 1-15           68               73

May 16-31        75               80

June 1-15           80               85

June 16-30        83               87

July 1-31           84               89

August 1-31      84               89

Sept 1-15           84               87

Sept 16-30         82               86

Oct 1-15            77               82

Oct 16-31          72               77

Nov 1-30           67               72

Dec 1-31            52               57

X

 

 

 

 

 

8.30  Thallium (ug/l)

 

 

 

 

6.3

1.7

 

8.31  Threshold odorc

Not to exceed a threshold odor number of 8 at 104oF as a daily average.

 

X

 

 

 

X

X

X

 

8.32  Total Residual Chlorine (ug/l - measured by amperometric or equivalent method)  

19

11

 

 

 

 

 

 

 

 

 

8.32.1  No chlorinated discharge allowed

 

 

X

 

 

 

8.33 Turbidity

No point or non-point source to West Virginia's waters shall contribute a net load of suspended matter such that the turbidity exceeds 10 NTU's over background turbidity when the background is 50 NTU or less, or have more than a 10% increase in turbidity (plus 10 NTU minimum) when the background turbidity is more than 50 NTUs. This limitation shall apply to all earth disturbance activities and shall be determined by measuring stream quality directly above and below the area where drainage from such activity enters the affected stream.  Any earth disturbing activity continuously or intermittently carried on by the same or associated persons on the same stream or tributary segment shall be allowed a single net loading increase.

 

X

 

X

X

X

 

8.33.1 This rule shall not apply to those activities at which Best Management Practices in accordance with the State's adopted 208 Water Quality Management Plan are being utilized, maintained and completed on a site-specific basis as determined by the appropriate 208 cooperative or an approved Federal or State Surface Mining Permit is in effect.  This exemption shall not apply to Trout Waters.

 

X

 

 

X

X

 

8.34 Zinc (ug/l)

The four-day average concentration of dissolved zinc determined by the following equationa:

Zn = e(0.8473[ln(hardness)]+0.884) x CF5

 

 

X

 

X

 

 

 

8.34.1 The one-hour average concentration of  dissolved zinc determined by the following equationa:

Zn = e(0.8473[ln(hardness)]+0.884) x CF5

X

 

X

 

 

 

 

 

 

1  One hour average concentration not to be exceeded more than once every three years on the average, unless otherwise noted.

2  Four-day average concentration not to be exceeded more than once every three years on the average, unless otherwise noted.

3  These criteria have been calculated to protect human health from toxic effects through fish consumption, unless otherwise noted.  Concentration Annual geometric mean concentration not to be exceeded, unless otherwise noted.

4  These criteria have been calculated to protect human health from toxic and/or organoleptic effects through drinking water and fish consumption, unless otherwise noted.  Concentration Annual geometric mean concentration not to be exceeded, unless otherwise noted.

5 The appropriate Conversion Factor (CF) is a value used as a multiplier to derive the dissolved aquatic life criterion is found in Appendix E, Table 2.

Phthalate esters are determined by the summation of the concentrations of Butylbenzyl Phthalate, Diethyl Phthalate, Dimethyl Phthalate, Di-n-Butyl Phthalate and Di-n-Octyl Phthalate.

a  Hardness as calcium carbonate (mg/l).  The minimum hardness allowed for use in this equation shall not be less than 25 mg/l, even if the actual ambient hardness is less than 25 mg/l.  The maximum hardness value for use in this equation shall not exceed 400 mg/l even if the actual hardness is greater than 400 mg/l.

b  Known or suspected carcinogen.  Human health standards are for a risk level of 10-6.

c  May not be applicable to wetlands (B4) - site-specific criteria are desirable.


d   The early life stage equation in the National Criterion shall be used to establish chronic criteria throughout the state unless the applicant demonstrates that no early life stages of fish occur in the affected water(s).

e Hardness as calcium carbonate (mg/l). The minimum hardness allowed for use in this equation shall not be less than 26 mg/l, even if the actual ambient hardness is less than 26 mg/l.  The maximum hardness value for use in this equation shall not exceed 200 mg/l even if the actual hardness is greater than 200 mg/l.

Water column values take precedence over fish tissue values when new inputs of selenium occur in waters previously unimpacted by selenium, until equilibrium is reached between the water column and fish tissue.

g Overrides any water column concentration when water concentrations and either fish whole body or fish muscle (skinless, boneless filet) are measured, except in situations described in footnote f

h Overrides any fish whole-body, fish muscle (skinless, boneless filet), or water column concentration when fish egg/ovary concentrations are measured, except in situations described in footnote f