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As of October 22nd the city will be offering FREE yard waste pickup through December except Thanksgiving week. The city is offering FREE yard waste bags at the Maintenance Services and the Finance Office and no stickers will be required on them during that time period. (One free bundle of bags per week will be allotted to residents with proof of residency.)Burning Regulations.
Candidates who have completed an application and submitted it to the city, must attend an physical agility pass/fail test. For those who pass the agility test, a written test follows. Scores from the written test are compiled to form a list. Preference points are available according to Illinois State statues.
Candidates who have completed an application and submitted it to the city, must attend the CPAT (Candidate Physical Agility Test). The CPAT testing is offered over an 8 week period for training and practice. For those who pass the CPAT, a written test follows. Scores from the written test are compiled to form a list. Preference points are available according to Illinois State statues. CPAT testing has been an nationally approved standardized testing program.
In addition to capital improvement impacts, the city also faces compliance with newly mandated and unfunded federal and state regulations regarding the amount and quality of stormwater. The United States Environmental Protection Agency's (USEPA) Phase II of the National Pollutant Discharge Elimination System (NPDES) program requires communities to develop, implement, and enforce a stormwater program.The intent of the program is to reduce discharge of pollutants from the storm sewer system, protect all tributaries, and improve water quality. Additional personnel will be required to administer and inspect elements relating to reporting and enforcement of a soon-to-be implemented Stormwater and Erosion Control Ordinance to ensure the city's compliance with these regulations.Total of $14.4 million in projected improvements include $1.8 million for the flood protection levee system improvements and $12.4 million for a multi-year Drainage Capital Improvements Plan to replace storm sewers and repair ravine structure. If you have any questions, please contact the Engineering Department.
The City of Rock Island calculates rates from measurements taken from aerial photography. All residential customer charges are based on parcel size and are split into three tiers. All other properties were based on impervious area. Davenport and Bettendorf also use an ERU system (Davenport = Equivalent Residential Unit, Bettendorf = Equivalent Runoff Unit) and have measured the amount of impervious area for multi-family residential and non-residential properties. If you have any questions, please contact the Engineering Department.
All property owners receive indirect benefits from a properly maintained and operated stormwater management system for the entire city which is on public property. Stormwater management activities with broad benefits include keeping the public streets drained and cleared so random flooding does not occur and travel is safe, making necessary stormwater infrastructure upgrades, reducing erosion and other pollutants that enter streams and rivers, and collecting and conveying stormwater safely through all parts of the city.
A portion of the revenue also provides for compliance with federal, state, and local regulations for water quality improvements. If you have any questions, please contact the Engineering Department.
The secondary treatment comes after primary clarification. Any suspended solids that did not settle in the primary clarifiers are carried over into the second stage of treatment. This stage is called activated sludge.
This process has been around for more than 100 years. It uses bacteria that need air, in an aeration (oxygenated) basin. It basically speeds up nature's natural process of decomposition. The suspended and dissolved solid waste is food for the bacteria. This food becomes broken down through adsorption and absorption.
After a mix and digestion period, the next step is gravity separation of the solids and the liquid in the secondary clarifiers. The solids are pumped off the bottom, and returned to the aeration basins, where they become the seed stock for the newly arriving flow to receive the same digestion process.
To keep the bacteria hungry, we keep them at a certain level in their growth cycle by removing a portion of the solids. So, part of the return activated sludge is removed and becomes waste activated sludge (WAS.) This WAS is sent to the anaerobic digesters for storage and further digestion. If you have any questions, please contact Wastewater Treatment.
We have a Sewer Use Ordinance that spells out what is and is not permitted to be disposed of. It is a good rule of thumb to only buy what you need, and to use it up as it is intended to be used. And, occasionally, there are EPA sponsored household hazardous waste drop off programs.For a look at the general prohibitions see section 8-9-2 of the East Moline City Code. This applies to industry and the general public. If you have any questions, please contact Wastewater Treatment.
There are differences in pretreatment screening and grit removal, aeration systems can be quite different, and anaerobic digestives can have a wide variety of design. Plus, we have not even touched on disinfection practices. The receiving stream and plant location itself can make a big difference in treatment schemes.If you have any questions, please contact Wastewater Treatment.
We have 5 anaerobic digestives. We use 2 of them as primary digestives. They are in a mix mode process. The other 3 are for solids separation and settling. As the solids and liquids separate, we draw off the liquid supernate.
When we have removed that portion, the solids are sent to the mix tank. From there they are sent to the filtration room where we have 2 2-meter Roediger belt tower presses. With the addition of polymer, we increase the solids level from 2-4% solids to 20-27% solids. This is taken for disposal to the landfill.
If you have any questions, please contact Wastewater Treatment.
Pollutants have a potential of impacting not only the receiving stream, but the treated residual solids can be impaired by pollutants, and get restricted disposal status. There is a huge monitoring program involved. Compliance monitoring and reporting is required in monthly, semi-annually, and annual increments. EPA spot checks all dischargers with their own sampling regularly.
The result of these regulations was having places like the Love Canal and other sites now on Superfund Cleanup lists. If you have any questions, please contact Wastewater Treatment.