The City of Eaton Rapids Wastewater Treatment Plant (WWTP) is designed to treat a Total Average Daily Flow of 1.1 MGD (Million gallons per day) and a Maximum Daily Flow of 2.1 MGD. The Peak Hourly Flow rate is 3.2 MGD.
Wastewater is delivered to the WWTP via the sanitary sewer collection system. The raw wastewater is directed thru "preliminary treatment" for removal of sticks, rags, plastic and rubber materials that may clog or damage pumps. Sand and grit are also allowed to settle out of the wasteawter flow to prevent excess wear on plant pumps and piping.
The wastewater flow is then directed into an anaerobic selector tank, along with return activiated sludge, for enhanced biological phosphorus removal. The flow is then pumped into Complete Mix Activated Sludge aeration tanks, for "secondary treatment". Subsequent flow enters the final clarifiers where sludge floc is teaming with micro-life and allowed to clarify from the wastewater.
The clarified wastewater flow is then disinfected, by use of ultra-violet lamps, before being discharged into the Grand River.
The City of Eaton Rapids Wastewater Treatment Plant (WWTP) was constructed in 1954. It was designed as a "primary" treatment plant. As such, its main purpose was to skim off floating materials and allow solids in the wastewater to settle out. Chlorine was then added for disinfection. The treated wastewater flow was then discharged into the Grand River.
The Federal Water Pollution Control Act was passed by the United States Congress on October 18, 1972. This Act established the National Pollutant Discharge Elimination System (NPDES) Permit Program. States were allowed to administer the Permit Program after federal authorization. The main componenets of the program - effluent limitations, water quality requirements, the Permit Program itself and other initial groundwork is still in place today.
Upgrades were completed at the Wastewater Treatment Plant in 1978 which provided "secondary" treatment capabilities. Secondary treatment follows primary treatment and is used to convert dissolved or suspended solids into a form which is easier to separate from the water being treated. This process is normally a type of biological treatment, followed by final clarification. The City of Eaton Rapids Wastewater Treatment Plant uses a biological complete mix activated sludge process for secondary treatment. The completed renovations provide the required treatment to satisfy the more stringent NPDES discharge permit requirements. The designed average flow rate thru the plant was 1.2 million gallons per day with a maximum flow rate of 2.0 million gallons per day.
After operating 24 hours a day, 365 days a year, for 28 years, the Wastewater Treatment Plant equipment became worn out and obsolete. Persistent efforts were made by the City's Wastewater Treatment Plant Staff to keep the process equipment in operation well past normal service life expectancy.
A City Wastewater Millage Election was held on February 10, 2004, to ask the citizens of Eaton Rapids for their support of the critical public works needs. The overall project costs for renovations would be $9,800,000. Citizens approved to pay for the project by means of an additional millage on all non tax-exempt property.
The most recent Wastewater Treatment Plant upgrade began in October 2004 and was completed in April of 2007.
The scope of the plant upgrade consisted of:
Replacement of worn out equipment
A sanitary sewer evaluation study
Construction of a new secondary clarifier
Construction of a new equalization tank for temporary storage of high storm flows
Installation of new process instrumentation
Installation of a new computerized Supervisory Control and Data Acquisition (SCADA) system.
Immediate benefits were seen in overall plant operations through equipment reliability, energy efficiency, and an improved safe work place for plant staff.
The City of Eaton Rapids Wastewater Treatment Plant is fully capable of providing the treatment necessary to meet or exceed its NPDES permit discharge requirements and therefore help protect our natural resources today and for many years to come.
Meet Your Plant Staff
Todd Nichols, (517) 663-8118, ext 8118
Todd began his wastewater carrer in July 1987. He has worked as a Plant Operator, Maintenance and Safety Coordinator, Project Manager, and accepted the position of Wastewater Director for the City of Eaton Rapids in 2002, just in time to oversee the most recent plant upgrade which was completed in 2007.
Todd graduated from Lansing Community College and holds the highest Michigan Wastewater Certifications A, B, C and D. He also holds numerous Industrial Wastewater Certifications.
Dan Chamberlin, Fred James, Wayne Verhelle and John Truscott
Council agenda's are posted to the website by Friday around 12:00pm. Our meeting schedule is a Work Session on the 1st and 3rd Monday's at 5pm and Council Meetings on the 2nd and 4th Monday's at 7pm. All meetings are held at City Hall on the 2nd floor.
The City of Eaton Rapids maintains the minutes of all official meetings. Below is a link to the most recent meeting minutes along with a link to our minutes archive.
The City of Eaton Rapids... The link below will take you to the Eaton Rapids City Charter. Please be advised that the Complete and Official copy is available at City Hall.
The City of Eaton Rapids has many ordinances to keep our citizens safe. The link below will take you to the Eaton Rapids City Code and Ordinances
The City of Eaton Rapids budget is from July 1st to June 30th of each year. Below is a link to the current year's budget.
The City of Eaton Rapids is home to many wonderful parks, walking trails and businesses. The link below will take you to a map of the city to help you get there. Over the next couple of months we will introduce a more interactive map.
The DDA (Downtown Development Authority) meets on the 2nd Friday at 7am at City Hall. Below are the most recent meeting minutes.
Talk of the Town
Bonnie View is ready for Spring are you? Please visit our new website at bonnieviewgolf.com also visit us on Facebook to learn more about us. 2013 memberships are selling fast just $275 for unlimited golf all season!
Friday, June 21st - 10:00 p.m. Movie at the Amphitheater - Life of Pi
Saturday, June 22nd - Dam Festival
Thursday, June 27th - 7:00 p.m. Music at the Amphitheater - Media Band
Friday, June 28th - 10:00 p.m. Movie at the Ampitheater - The Hobbit
Friday and Saturday, July 26th and 27th - Murder Mystery Dinner at the Miller House from 7:00 p.m. to 10:00 p.m.
Friday, August 16th - Medical Center Foundation Golf Outing at Eldorado Golf Course, call 663-9524 for more information
Saturday, October 5th - Fall Festival at the Miller Farm