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February 2� 1970 <br />Idr. ,1�n�es Johnson <br />3718 Muk3lteo Ellvd. <br />Ever-3tt� Washington 98201 <br />Dear tdr. Johnson: <br />Fieference here :s �o '.ho offensive odors in the basement 6athroom of <br />your residance. <br />Friday� Janunry 30� 1970� with Wayne Fordham of ihe Snohomish fiealth <br />District� I made a very careful inspection of thfe basement bathroom <br />facilities in your residence� 3718_f,Aukilteo Blvd. <br />The prirr�ry purpose of the inspection was to clatermine� i£ possible� <br />how the odor was getting into fhe bathroom. This �vE r�ere unable to <br />do� conclusively. Ple were howevor able to observe some points which <br />may have a bearing up�n the subject. <br />a. ThQ basemer,t bathroom fixtures - toil�t-basin-shower-are un- <br />vented. <br />b, They appee.r to be connected direct to the hause drain about <br />25 feet f;om the main vent. <br />c. All plumbing vents now on the residence have an area oP 6 1/8 <br />inches. Minimum for a residence co�nected to r� public sewer <br />system is 12� inches venting area At roof line. <br />Ple believe it extremely doubtful {he odor is r_ominn, into the bathroom <br />through the iixtures. The odor appears to us to be entering around <br />the base of the toilet bowl at floor levol. Should this prove true� <br />odors of any kind� including sewer Pas� could enter the bathroom� <br />which �vould be an extremely unheaithy �ituation. <br />