Conn. Agencies Regs. tit. 22a, 416, app A - Advisory committee
Size of facility (2-20 points) |
Points |
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Maximum population equivalent 1 (P.E.) served on peak day |
1 point per 10,000 P.E. part thereof, for a maximum of 10 points |
_________ |
|
Design flow |
1 point per MGD or part thereof, for a maximum 10 points |
_________ |
|
Land disposal (evaporation) |
2 |
_________ |
|
Subsurface disposal |
4 |
_________ |
|
Variation in strength and/or flow of raw wastewater (slight to extreme) (0-6 points) |
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Variations do not exceed those normally present |
0 |
_________ |
|
Recurring variations of 100% to 200% from norm |
2 |
_________ |
|
Recurring variations of more than 200% from norm |
4 |
_________ |
|
Raw wastes that impair biological treatment processes |
6 |
_________ |
|
Pretreatment plant processes utilized |
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Pumping of main flow other than recycle flows at any point within the facility |
3 |
_________ |
|
Screening or comminution |
1 |
_________ |
|
Grit removal |
3 |
_________ |
|
Equalization |
1 |
_________ |
|
Effluent pumping when receiving infiltration (e.g. stream flooding) |
3 |
_________ |
|
Combined Sewer Overflow |
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Storage |
1 |
_________ |
|
Treatment |
3 |
_________ |
|
Primary treatment utilized |
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Primary clarifiers |
5 |
_________ |
|
Combined sedimentation/digestion (Imhoff tanks) |
5 |
_________ |
|
Micro screening or other physical treatment |
3 |
_________ |
|
Trickling filters used as roughing filters with recycle and intermediate clarifiers |
5 |
_________ |
|
Trickling filters used as roughing filters with recycle or intermediate clarifiers |
3 |
_________ |
|
SCADA |
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Operational |
6 |
_________ |
|
Monitoring |
2 |
_________ |
|
Secondary treatment utilized |
|||
Trickling filter or rotating biological contractor with secondary clarifiers |
10 |
_________ |
|
Activated sludge with secondary clarifiers |
15 |
_________ |
|
Activated sludge without primary clarifiers including extended aeration, sequential batch |
|||
including extended aeration, sequential batch reactors and oxidation ditches |
18 |
_________ |
|
Stabilization ponds without aeration |
5 |
_________ |
|
Aerated lagoon |
8 |
_________ |
|
Advanced treatment utilized |
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Post aeration (mechanical) |
2 |
_________ |
|
Direct recycle and reuse |
6 |
_________ |
|
Polishing pond |
2 |
_________ |
|
Chemical phosphorus removal |
4 |
_________ |
|
Biological phosphorus removal |
6 |
_________ |
|
Nitrification processes |
6 |
_________ |
|
Nitrification and denitrification processes |
9 |
_________ |
|
Denitrification filter |
6 |
_________ |
|
Ion exchange |
10 |
_________ |
|
Reverse osmosis or electrodialysis |
15 |
_________ |
|
Chemical recovery or carbon regeneration |
4 |
_________ |
|
Mechanical filtration |
10 |
_________ |
|
Intermittent sand filters with gravity under drains |
5 |
_________ |
|
Solids Handling |
|||
Solids conditioning with polymers, ferricchloride or alum |
2 |
_________ |
|
Thickening by means of: Gravity |
2 |
_________ |
|
Mechanical (dissolved air flotation, gravity belt or centrifuge) |
5 |
_________ |
|
Anaerobic digestion |
10 |
_________ |
|
Aerobic digestion |
6 |
_________ |
|
Evaporative sludge drying |
2 |
_________ |
|
Mechanical dewatering |
5 |
_________ |
|
Incineration, wet oxidation, or other solids reduction |
12 |
_________ |
|
On-site disposal |
2 |
_________ |
|
Composting (In vessel) |
10 |
_________ |
|
Composting (static pile) |
5 |
_________ |
|
Sludge storage |
1 |
_________ |
|
Sludge pumping offsite |
2 |
_________ |
|
Disinfection |
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Chlorination or comparable disinfection |
5 |
_________ |
|
Chlorination/Dechlorination |
8 |
_________ |
|
On-site generation and application of disinfectant |
5 |
_________ |
|
Ultraviolet light |
5 |
_________ |
|
Odor control |
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Biofilter |
3 |
_________ |
|
Adsorption with activated carbon or equal |
3 |
_________ |
|
Wet scrubber |
6 |
_________ |
|
Thermal destruction with catalytic process |
6 |
_________ |
|
Odor reducing sprays |
2 |
_________ |
|
Chemical Additives |
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Septage treatment system |
3 |
_________ |
|
Sedimentation additives |
2 |
_________ |
|
Nutrient removal |
2 |
_________ |
|
Biological laboratory analysis |
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Laboratory analysis performed outside the facility |
0 |
_________ |
|
Laboratory analysis performed at the facility: |
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Membrane filter |
2 |
_________ |
|
Use of fermentation tubes or any dilution method using a fecal coliform bacteria determination |
3 |
_________ |
|
Identification and counts of biota by percent relative abundance |
3 |
_________ |
|
Chemical and/or Physical laboratory analysis |
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Laboratory analysis performed outside the facility |
0 |
_________ |
|
Laboratory analysis performed at the facility: |
_________ |
||
Push-button or visual methods for simple analysis (e.g. settleable solids) |
2 |
_________ |
|
Additional analysis including dissolved oxygen, biological oxygen demand, chemical oxygen demand, gas analysis, titration, solids, and volatile content |
3 |
_________ |
|
More advanced analyses including specific constituents, nutrients, total oils, phenols, or use of highly sophisticated instrumentation including atomic absorption, gas chromatography |
3 |
_________ |
|
Total points: |
_________ |
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.