Attention Rural Water District #1 Patrons: Ottawa County Rural  Water & Sewer District #1 would like you to know that an unknown substance has been found in the town sewer system. Please make sure there is water in all the traps in your homes or businesses.  The Ottawa County Rural Water & Sewer District #1 & the DEQ want you to know that they are taking all measurable precaustions to rectify the situation.