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PART III
<br />Page 47 of 48
<br />Permit No.: C00000906
<br />Adapted from Suarez (1981).
<br />Z Assumes a soil source of calcium from time (CaCO3) or silicates; no precipitation of magnesium, and partial
<br />pressure of CO2 near the soil surface (Pco2) is 0.0007 atmospheres.
<br />3 Ca,, HCO3, Ca are reported in meq/l; EC is in dS/m (deciSiemens per meter).
<br />Because values will not always be quantified at the exact EC or HCO3 /Ca++ ratio in the table, the resulting CaX
<br />must be determined based on the closest value to the calculated value. For example, for a calculated EC of 2.45
<br />dS/m, the column for the EC of 2.0 would be used. However, for a calculated EC of 5.1, the corresponding column
<br />for the EC of 6.0 would be used. Similarly, for a HCO3 /Ca" ratio of 25.1, the row for the 30 ratio would be used.
<br />The Division acknowledges that some effluents may have electrical conductivity levels that fall outside of this
<br />table, and others have bicarbonate to calcium ratios that fall outside this table. For example, some data reflect
<br />HCO3 /Ca++ ratios greater than 30 due to bicarbonate concentrations reported greater than 1000 mg/l versus
<br />calcium concentrations generally less than 10 mg/l (i.e., corresponding to HCO3 /Ca++ ratios greater than 100).
<br />Despite these high values exceeding the chart's boundaries, it is noted that the higher the HCO3 /Ca++ ratio, the
<br />greater the SAR-adj. Thus, using the Ca), values corresponding to the final row containing bicarbonate/ calcium
<br />ratios of 30, the permittee will actually calculate an SAR-adj that is less than the value calculated if additional
<br />rows reflecting HCO3 /Ca++ ratios of greater than 100 were added.
<br />32. "Seven (7) day average" means, with the exception of fecal coliform or E. coli bacteria (see geometric mean), the
<br />arithmetic mean of all samples collected in a seven (7) consecutive day period. Such seven (7) day averages shall
<br />be calculated for all calendar weeks, which are defined as beginning on Sunday and ending on Saturday. If the
<br />calendar week overlaps two months (i.e. the Sunday is in one month and the Saturday in the following month), the
<br />seven (7) day average calculated for that calendar week shall be associated with the month that contains the
<br />Saturday. Samples may not be used for more than one (1) reporting period. (See the "Analytical and Sampling
<br />Methods for Monitoring and Reporting Section in Part I.D.3 for guidance on calculating averages and reporting
<br />analytical results that are less than the PQL).
<br />33. "Significant spills and leaks" - include, but are not limited to, releases of oil or hazardous substances in excess of
<br />quantities that are reportable under CWA Section 311 (see 40 CFR 110.6 and 40 CFR 117.21) or Section 102 of the
<br />Comprehensive Environment at Response, Compensation and Liability Act (CERCLA), 42 USC 39602. This permit does
<br />not relieve the permittee of the reporting requirements of 40 CFR 110, 40 CFR 117, and 40 CFR 302 relating to
<br />spills or other releases of oils or hazardous substances.
<br />34. "Stormwater" - stormwater runoff, snow melt runoff, and surface runoff and drainage. See 5 CCR 1002-61.2(103).
<br />35. "Stormwater Discharges Associated with Industrial Activity" - the discharge from any conveyance that is used for
<br />collecting and conveying stormwater and which is directly related to manufacturing, processing or raw materials
<br />storage areas at an industrial plant. Except for the provision of 61.3(2)(c) that addresses construction activities
<br />associated with oil and gas operations or facilities, the term does not include discharges from facilities or activities
<br />excluded from the NPDES program under 40 CFR Part 122 or the CDPS program under Regulation No. 61.
<br />For the categories of industries identified in this permit, the term includes, but is not limited to, stormwater
<br />discharges from industrial plant yards; immediate access roads and rail lines used or traveled by carriers of raw
<br />materials, manufactured products, waste material, or by-products used or created by the facility; material
<br />handling sites; refuse sites; sites used for the application or disposal of process waste waters); sites used for the
<br />storage and maintenance of material handling equipment; sites used for residual treatment, storage, or disposal;
<br />2.50
<br />0.97T1.001
<br />1.021
<br />1.061
<br />1.091
<br />1.121
<br />1.171
<br />1.211
<br />1.271
<br />1.321
<br />1.401
<br />1.47
<br />3.001
<br />0.851
<br />0.891
<br />0.911
<br />0.941
<br />0.961
<br />1.001
<br />1.041
<br />1.071
<br />1.131
<br />1.171
<br />1.241
<br />1.30
<br />3.501
<br />0.781
<br />0.801
<br />0.821
<br />0.851
<br />0.871
<br />0.901
<br />0.941
<br />0.971
<br />1.021
<br />1.061
<br />1.121
<br />1.17
<br />4.001
<br />0.711
<br />0.731
<br />0.751
<br />0.781
<br />0.801
<br />0.821
<br />0.861
<br />0.881
<br />0.931
<br />0.971
<br />1.031
<br />1.07
<br />4.501
<br />0.661
<br />0.681
<br />0.691
<br />0.721
<br />0.741
<br />0.761
<br />0.791
<br />0.821
<br />0.861
<br />0.901
<br />0.951
<br />0.99
<br />5.001
<br />0.611
<br />0.631
<br />0.651
<br />0.671
<br />0.691
<br />0.711
<br />0.741
<br />0.761
<br />0.801
<br />0.831
<br />0.881
<br />0.93
<br />7.00
<br />0.49
<br />0.50
<br />0.52
<br />0.53
<br />0.55
<br />0.57
<br />0.59
<br />0.611
<br />0.641
<br />0.671
<br />0.711
<br />0.74
<br />10.001
<br />20.001
<br />0.391
<br />0.401
<br />0.411
<br />0.421
<br />0.431
<br />0.451
<br />0.471
<br />0.481
<br />0.511
<br />0.531
<br />0.561
<br />0.58
<br />0.241 0.251 0.261 0.261 0.271 0.281 0.291 0.301 0.321 0.331 0.351
<br />0.37
<br />30.001
<br />0.181
<br />0.191
<br />0.201
<br />0.201
<br />0.211
<br />0.211
<br />0.221
<br />0.231
<br />0.241
<br />0.251
<br />0.271
<br />0.28
<br />Adapted from Suarez (1981).
<br />Z Assumes a soil source of calcium from time (CaCO3) or silicates; no precipitation of magnesium, and partial
<br />pressure of CO2 near the soil surface (Pco2) is 0.0007 atmospheres.
<br />3 Ca,, HCO3, Ca are reported in meq/l; EC is in dS/m (deciSiemens per meter).
<br />Because values will not always be quantified at the exact EC or HCO3 /Ca++ ratio in the table, the resulting CaX
<br />must be determined based on the closest value to the calculated value. For example, for a calculated EC of 2.45
<br />dS/m, the column for the EC of 2.0 would be used. However, for a calculated EC of 5.1, the corresponding column
<br />for the EC of 6.0 would be used. Similarly, for a HCO3 /Ca" ratio of 25.1, the row for the 30 ratio would be used.
<br />The Division acknowledges that some effluents may have electrical conductivity levels that fall outside of this
<br />table, and others have bicarbonate to calcium ratios that fall outside this table. For example, some data reflect
<br />HCO3 /Ca++ ratios greater than 30 due to bicarbonate concentrations reported greater than 1000 mg/l versus
<br />calcium concentrations generally less than 10 mg/l (i.e., corresponding to HCO3 /Ca++ ratios greater than 100).
<br />Despite these high values exceeding the chart's boundaries, it is noted that the higher the HCO3 /Ca++ ratio, the
<br />greater the SAR-adj. Thus, using the Ca), values corresponding to the final row containing bicarbonate/ calcium
<br />ratios of 30, the permittee will actually calculate an SAR-adj that is less than the value calculated if additional
<br />rows reflecting HCO3 /Ca++ ratios of greater than 100 were added.
<br />32. "Seven (7) day average" means, with the exception of fecal coliform or E. coli bacteria (see geometric mean), the
<br />arithmetic mean of all samples collected in a seven (7) consecutive day period. Such seven (7) day averages shall
<br />be calculated for all calendar weeks, which are defined as beginning on Sunday and ending on Saturday. If the
<br />calendar week overlaps two months (i.e. the Sunday is in one month and the Saturday in the following month), the
<br />seven (7) day average calculated for that calendar week shall be associated with the month that contains the
<br />Saturday. Samples may not be used for more than one (1) reporting period. (See the "Analytical and Sampling
<br />Methods for Monitoring and Reporting Section in Part I.D.3 for guidance on calculating averages and reporting
<br />analytical results that are less than the PQL).
<br />33. "Significant spills and leaks" - include, but are not limited to, releases of oil or hazardous substances in excess of
<br />quantities that are reportable under CWA Section 311 (see 40 CFR 110.6 and 40 CFR 117.21) or Section 102 of the
<br />Comprehensive Environment at Response, Compensation and Liability Act (CERCLA), 42 USC 39602. This permit does
<br />not relieve the permittee of the reporting requirements of 40 CFR 110, 40 CFR 117, and 40 CFR 302 relating to
<br />spills or other releases of oils or hazardous substances.
<br />34. "Stormwater" - stormwater runoff, snow melt runoff, and surface runoff and drainage. See 5 CCR 1002-61.2(103).
<br />35. "Stormwater Discharges Associated with Industrial Activity" - the discharge from any conveyance that is used for
<br />collecting and conveying stormwater and which is directly related to manufacturing, processing or raw materials
<br />storage areas at an industrial plant. Except for the provision of 61.3(2)(c) that addresses construction activities
<br />associated with oil and gas operations or facilities, the term does not include discharges from facilities or activities
<br />excluded from the NPDES program under 40 CFR Part 122 or the CDPS program under Regulation No. 61.
<br />For the categories of industries identified in this permit, the term includes, but is not limited to, stormwater
<br />discharges from industrial plant yards; immediate access roads and rail lines used or traveled by carriers of raw
<br />materials, manufactured products, waste material, or by-products used or created by the facility; material
<br />handling sites; refuse sites; sites used for the application or disposal of process waste waters); sites used for the
<br />storage and maintenance of material handling equipment; sites used for residual treatment, storage, or disposal;
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