R309-300-19. Drinking Water System Classification

This system applies only to those public water supplies operating coagulation and/or filtration treatment plants. This classification system does not apply to those systems operating only chlorination facilities on distribution systems. TABLE 2 Size Item Points Maximum population 1 pt. per served, peak day 5,000 or part thereof Design flow (avg. day) 1 pt. per or peak month's MGD or part thereof Water Supply Source Groundwater 3 Surface water 5 Average raw water quality (0 to 10) Little or no variation 0 Raw water quality (other than turbidity) varies enough to require treatment changes less than 10% of the time 2 Raw water quality including turbidity varies often enough to require frequent changes in the treatment process 5 Raw water quality is subject to major changes and may be subject to periodic serious pollution 10 Aeration for or with CO2 2 pH adjustment 4 Packed tower aeration 6 Stability or corrosion control 4 Taste and odor control 8 Color control 4 Treatment Iron or Iron/Mn, removal 10 Ion exchange softening 10 Chemical precipitation softening 20 Coagulant addition 4 Flocculation 6 Sedimentation 5 Upflow clarification 14 Filtration 10 Disinfection (0-10) No disinfection 0 Chlorination or comparable 5 On-site generation of disinfectant 5 Special processes (including reverse osmosis, electro- dialysis, etc. 15 Sludge/backwash water disposal (0-5) No disposal to raw water source 0 Any disposal to raw water source 2 Any disposal to plant raw water 5 Laboratory control (0-10) Biological (0-10) All lab work done outside of plant 0 Colilert process 2 Membrane filter 3 Multiple tube of fecal determination 5 Biological identification 7 Viral studies or similarly complex work done on-site 10 Chemical/physical All lab work done outside of plant 0 Push button or colorimetric methods such as chlorine residual or pH 3 Additional procedures such as titrations or jar tests 5 More advanced determinations such as numerous organics 7 Highly sophisticated instru- mentation such as atomic absorption or gas chroma- tography 10 TABLE 3 SUMMARY OF UTAH WATER UTILITY CLASSIFICATION SYSTEM WATER TREATMENT PLANT CLASSIFICATION Grade 1 2 3 4 Population 1500 1501 5001 over served or less 5000 15,000 15,000 Water plant points 0-40 41-65 66-90 91-UP TABLE 4 SUMMARY OF UTAH WATER UTILITY CLASSIFICATION SYSTEM DISTRIBUTION CLASSIFICATION Grade Small System 1 2 3 4 Population 500 or less 501 to 1501 to 5001 to over served 1500 5000 15,000 15,000 Distribution points 0-10 0-10 10-25 26-50 51-UP Distribution systems are those which use groundwater sources (springs and wells) and which may or may not use chlorination. Classification will generally be made in accordance with the following five classes. The Director may change the classification of a particular distribution system when there are unusual factors affecting the complexity of transmission, mixing of sources, or potential health hazards. TABLE 5 MINIMUM REQUIRED QUALIFICATIONS FOR UTAH WATERWORKS OPERATORS EDUCATION EXPERIENCE Direct Certification Non Respon. Grade Assoc. High High Charge Total (Both Dist. Degree Degree School School Years Years and Treatment) X 2 4 X 2 6 4 X 4 8 X 5 10 X 1 2 X 1 2 3 X 2 4 X 3 6 X 0 2 X 0 2 2 X 0 2 X 0 3 X 0 1 X 0 1 1 and X 0 1 Small System X 0 1 Note: (1) Experience requirements apply to all operators except those who have been issued "grandparent" certificates. (2) At least one half of all experience must be gained at the grade of certification desired.