February 25, 2009 By Andy Opsahl
Officials in Topeka, Kan. want septic tanks gone, so they use GIS maps to locate households capable of switching to the municipal sewer system. The project has been ongoing since the city passed an ordinance in 1997 mandating that homes close to the sewer system remove their septic tanks, said Kyle Tjelmeland, GIS system analyst for Topeka.
"It becomes a revenue stream for the city," said Tjelmeland. Citizens pay the city more than $1,000 to hook up to the municipal sewer system.
To locate prospects for conversion to the sewer, Topeka's GIS staff crafted a map with layers showing houses near the sewer system that receive water service but no sewer service.
"If they're paying a water bill, but they're not paying a sewer bill, there's a good chance they're using a septic system. Either that, or they're connected to the sewer system illegally," said Tjelmeland.
Septic Tanks Can Pollute
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There's a thick layer of 'ground' between the surface and the 'ground water.' Almost all the bacteria -- which serves as nutrients to other important organisms -- and plants, get processed long before hitting the ground water. It's really about the money-- squeezing more of it out of citizens.
There's a thick layer of 'ground' between the surface and the 'ground water.' Almost all the bacteria -- which serves as nutrients to other important organisms -- and plants, get processed long before hitting the ground water. It's really about the money-- squeezing more of it out of citizens.
There's a thick layer of 'ground' between the surface and the 'ground water.' Almost all the bacteria -- which serves as nutrients to other important organisms -- and plants, get processed long before hitting the ground water. It's really about the money-- squeezing more of it out of citizens.
I agree with Wesley. I would have to pay abour $3,000 installation, plus $50 a month for sewer? Why do that when the septic tank only costs me $350 every 10 or 15 years to pump it out? We're careful - we don't put grease down the drain and we don't use our garbage disposal much. But if the city offered me free hookup to the sewer, I would consider it.
I agree with Wesley. I would have to pay abour $3,000 installation, plus $50 a month for sewer? Why do that when the septic tank only costs me $350 every 10 or 15 years to pump it out? We're careful - we don't put grease down the drain and we don't use our garbage disposal much. But if the city offered me free hookup to the sewer, I would consider it.
I agree with Wesley. I would have to pay abour $3,000 installation, plus $50 a month for sewer? Why do that when the septic tank only costs me $350 every 10 or 15 years to pump it out? We're careful - we don't put grease down the drain and we don't use our garbage disposal much. But if the city offered me free hookup to the sewer, I would consider it.