Conn. Agencies Regs. § APPENDIXA
| Size of facility (2-20 points) | Points | ||
| 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) | |||
| 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 | |||
| 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 | |||
| Storage | 1 | _________ | |
| Treatment | 3 | _________ | |
| Primary treatment utilized | |||
| 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 | |||
| 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 | |||
| 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 | |||
| Chlorination or comparable disinfection | 5 | _________ | |
| Chlorination/Dechlorination | 8 | _________ | |
| On-site generation and application of disinfectant | 5 | _________ | |
| Ultraviolet light | 5 | _________ | |
| Odor control | |||
| Biofilter | 3 | _________ | |
| Adsorption with activated carbon or equal | 3 | _________ | |
| Wet scrubber | 6 | _________ | |
| Thermal destruction with catalytic process | 6 | _________ | |
| Odor reducing sprays | 2 | _________ | |
| Chemical Additives | |||
| Septage treatment system | 3 | _________ | |
| Sedimentation additives | 2 | _________ | |
| Nutrient removal | 2 | _________ | |
| Biological laboratory analysis | |||
| Laboratory analysis performed outside the facility | 0 | _________ | |
| Laboratory analysis performed at the facility: | |||
| 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 | |||
| 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: | _________ |
(Effective June 25, 1984; Amended June 5, 2000)