Common use of LIMITS OF ERROR, AND PENALTIES RELATED THERETO Clause in Contracts

LIMITS OF ERROR, AND PENALTIES RELATED THERETO. Limits of error for the common dissolved constituents in “clean water” samples, i.e. those not admixed with large quantities of organic or inorganic detritus nor containing a large concentration of inorganic salts are defined in the following schedule, which shall apply to the determination of satisfactory accuracy or precision in analyses for these components: Constituent Allowable Error Calcium 5% or 1.5 mg/L, whichever is greater Magnesium 6% or 1.5 mg/L, whichever is greater Sodium 5% or 2.0 mg/L, whichever is greater Potassium 8% or 1.0 mg/L, whichever is greater Chloride 5% or 1.0 mg/L, whichever is greater Sulfate 8% or 2.0 mg/L, whichever is greater Nitrate 8% or 1.0 mg/L, whichever is greater Fluoride 8% or 1.0 mg/L, whichever is greater Boron 10% or 2.0 mg/L, whichever is greater Silica 10% or 2.0 mg/L, whichever is greater Phosphate 10% or 2.0 mg/L, whichever is greater Ammonia Nitrogen 10% or 1.0 mg/L, whichever is greater Total Kjeldahl Nitrogen 15% or 1.0 mg/L, whichever is greater Pb, Cu, Cr, Cd, Zn 10% at a detection limit of 20 g/L or greater Fe, Mn 8% at a detection limit of 100 g/L or greater Hg 25% at a detection limit of 1 g/L or greater Se, As 15% at a detection limit of 10 g/L or greater Pesticides, Herbicides 50% at a detection limit of 1 g/L or greater PCBs (PCP Group) 50% at a detection limit of 1 g/L or greater MBAS 100% Oil & Grease 100% Ion Balance 0.5 milliequivalents/Liter or 5% (General Mineral), whichever is greater Extractable Organics 50% of EPA established detection limits Volatile Organics 20% of EPA established detection limits In the case of analytical parameters not listed above, determinations of satisfactory accuracy and/or precision may be made by COUNTY, based on information in the latest edition of “Standard Methods,” or from other reputable publications. In the case of deviation from true values in excess of the detection limits outlined above, for samples of known composition submitted by COUNTY for accuracy quality control, COUNTY may (at its option) either:  Notify CONTRACTOR, if COUNTY believes the error is of a random nature, or  Submit to CONTRACTOR, for analysis, another sample of known composition. On the second occurrence of such excessive error within two consecutive quarters, CONTRACTOR’s invoices for one quarter shall be discounted in accordance with the following table: Average of Ratios of Errors to Allowable Errors % Discount

LIMITS OF ERROR, AND PENALTIES RELATED THERETO. Limits of error for the common dissolved constituents in “clean water” samples, i.e. those not admixed with large quantities of organic or inorganic detritus nor containing a large concentration of inorganic salts are defined in the following schedule, which shall apply to the determination of satisfactory accuracy or precision in analyses for these components: Constituent Allowable Error Calcium 5% or 1.5 mg/L, whichever is greater Magnesium 6% or 1.5 mg/L, whichever is greater Sodium 5% or 2.0 mg/L, whichever is greater Potassium 8% or 1.0 mg/L, whichever is greater Chloride 5% or 1.0 mg/L, whichever is greater Sulfate 8% or 2.0 mg/L, whichever is greater Nitrate 8% or 1.0 mg/L, whichever is greater Fluoride 8% or 1.0 mg/L, whichever is greater Boron 10% or 2.0 mg/L, whichever is greater Silica 10% or 2.0 mg/L, whichever is greater Phosphate 10% or 2.0 mg/L, whichever is greater Ammonia Nitrogen 10% or 1.0 mg/L, whichever is greater Total Kjeldahl Nitrogen 15% or 1.0 mg/L, whichever is greater Pb, Cu, Cr, Cd, Zn 10% at a detection limit of 20 gμg/L or greater Fe, Mn 8% at a detection limit of 100 gμg/L or greater Hg 25% at a detection limit of 1 gμg/L or greater Se, As 15% at a detection limit of 10 gμg/L or greater Pesticides, Herbicides 50% at a detection limit of 1 gμg/L or greater PCBs (PCP Group) 50% at a detection limit of 1 gμg/L or greater MBAS 100% Oil & Grease 100% Ion Balance 0.5 milliequivalents/Liter or 5% (General Mineral), whichever is greater Extractable Organics 50% of EPA established detection limits Volatile Organics 20% of EPA established detection limits In the case of analytical parameters not listed above, determinations of satisfactory accuracy and/or precision may be made by COUNTY, based on information in the latest edition of “Standard Methods,” or from other reputable publications. In the case of deviation from true values in excess of the detection limits outlined above, for samples of known composition submitted by COUNTY for accuracy quality control, COUNTY may (at its option) either:  • Notify CONTRACTOR, if COUNTY believes the error is of a random nature, or  • Submit to CONTRACTOR, for analysis, another sample of known composition. On the second occurrence of such excessive error within two consecutive quarters, CONTRACTOR’s invoices for one quarter shall be discounted in accordance with the following table: Average of Ratios of Errors to Allowable Errors % Discount

LIMITS OF ERROR, AND PENALTIES RELATED THERETO. Limits of error for the common dissolved constituents in “clean water” samples, i.e. those not admixed with large quantities of organic or inorganic detritus nor containing a large concentration of inorganic salts are defined in the following schedule, which shall apply to the determination of satisfactory accuracy or precision in analyses for these components: Constituent Allowable Error Calcium 5% or 1.5 mg/L, whichever is greater Magnesium 6% or 1.5 mg/L, whichever is greater Sodium 5% or 2.0 mg/L, whichever is greater Potassium 8% or 1.0 mg/L, whichever is greater Chloride 5% or 1.0 mg/L, whichever is greater Sulfate 8% or 2.0 mg/L, whichever is greater Nitrate 8% or 1.0 mg/L, whichever is greater Fluoride 8% or 1.0 mg/L, whichever is greater Boron 10% or 2.0 mg/L, whichever is greater Silica 10% or 2.0 mg/L, whichever is greater Phosphate 10% or 2.0 mg/L, whichever is greater Ammonia Nitrogen 10% or 1.0 mg/L, whichever is greater Total Kjeldahl Nitrogen 15% or 1.0 mg/L, whichever is greater PbXx, CuXx, CrXx, CdXx , Zn Xx 10% at a detection limit of 20 g/L or greater Fe, Mn 8% at a detection limit of 100 g/L or greater Hg 25% at a detection limit of 1 g/L or greater Se, As 15% at a detection limit of 10 g/L or greater Pesticides, Herbicides 50% at a detection limit of 1 g/L or greater PCBs (PCP Group) 50% at a detection limit of 1 g/L or greater MBAS 100% Oil & Grease 100% Ion Balance 0.5 milliequivalents/Liter or 5% (General Mineral), whichever is greater Extractable Organics 50% of EPA established detection limits Volatile Organics 20% of EPA established detection limits In the case of analytical parameters not listed above, determinations of satisfactory accuracy and/or precision may be made by COUNTY, based on information in the latest edition of “Standard Methods,” or from other reputable publications. In the case of deviation from true values in excess of the detection limits outlined above, for samples of known composition submitted by COUNTY for accuracy quality control, COUNTY may (at its option) either:  Notify CONTRACTOR, if COUNTY believes the error is of a random nature, or  Submit to CONTRACTOR, for analysis, another sample of known composition. On the second occurrence of such excessive error within two consecutive quarters, CONTRACTOR’s invoices for one quarter shall be discounted in accordance with the following table: Average of Ratios of Errors to Allowable Errors % Discount

LIMITS OF ERROR, AND PENALTIES RELATED THERETO. Limits of error for the common dissolved constituents in “clean water” samples, i.e. those not admixed with large quantities of organic or inorganic detritus nor containing a large concentration of inorganic salts salts, are defined in the following schedule, which shall apply to the determination of satisfactory accuracy or precision in analyses for these components: Constituent Allowable Error Calcium 5% or 1.5 mg/L, whichever is greater Magnesium 6% or 1.5 mg/L, whichever is greater Sodium 5% or 2.0 mg/L, whichever is greater Potassium 8% or 1.0 mg/L, whichever is greater Chloride 5% or 1.0 mg/L, whichever is greater Sulfate 8% or 2.0 mg/L, whichever is greater Nitrate 8% or 1.0 mg/L, whichever is greater Fluoride 8% or 1.0 mg/L, whichever is greater Boron 10% or 2.0 mg/L, whichever is greater Silica 10% or 2.0 mg/L, whichever is greater Phosphate 10% or 2.0 mg/L, whichever is greater Ammonia Nitrogen 10% or 1.0 mg/L, whichever is greater Total Kjeldahl Nitrogen 15% or 1.0 mg/L, whichever is greater Pb, Cu, Cr, CdCd , Zn 10% at a detection limit of 20 gμg/L or greater Fe, Mn 8% at a detection limit of 100 gμg/L or greater Hg 25% at a detection limit of 1 gμg/L or greater Se, As 15% at a detection limit of 10 gμg/L or greater Pesticides, Herbicides 50% at a detection limit of 1 gμg/L or greater PCBs (PCP Group) 50% at a detection limit of 1 gμg/L or greater MBAS 100% Oil & Grease 100% Ion Balance 0.5 milliequivalents/Liter or 5% (General Mineral), whichever is greater Extractable Organics 50% of EPA established detection limits Volatile Organics 20% of EPA established detection limits In the case of analytical parameters not listed above, determinations of satisfactory accuracy and/or precision may be made by COUNTY, based on information in the latest edition of “Standard Methods,” or from other reputable publications. In the case of deviation from true values in excess of the detection limits outlined above, for samples of known composition submitted by COUNTY for accuracy quality control, COUNTY may (at its option) either:  • Notify CONTRACTOR, if COUNTY believes the error is of a random nature, or  • Submit to CONTRACTOR, for analysis, another sample of known composition. On the second occurrence of such excessive error within two consecutive quarters, CONTRACTOR’s invoices for one quarter shall be discounted in accordance with the following table: Average of Ratios of Errors to Allowable Errors % DiscountDiscount 1.0 – 1.1 10 1.1 – 1.2 20 1.2 - 1.3 30