48 



been made by the State Board of Health for the purpose of determining 

 the condition of Indiana lalves and streams. 



In the summer of 1011 a sanitary survey of the Ohio Kiver along the 

 southern boundary of Indiana was made. The worlc was started at Cin- 

 cinnati and samples of the river water were analyzed from this point to 

 the mouth of the Wabash River. They were collected at every mile with 

 the exception of a short distance, where circumstances made it necessary 

 to take them everj' two miles. A study of the water and sewer system in 

 each city or town of sufficient size to have such improvements, was made. 

 Analyses, chemical and bacterial, were made of all water supplies, espe- 

 cial attention being given to those using the river for their source of 

 supply. Manufacturing ])lants were visited, and if they were emptying 

 waste into the river, the kind, together witli an estimate (if the .lUKiunt. 

 was noted. 



In the ^unlme^ <if 1012. a survey of the Wabash Uiver from r>lufft.on to 

 its mouth was made :iim1 similar data collected. On lioth surveys a house- 

 boat e<|uii)ped tor the lai)oi-atory work and living quarters was used. The 

 tirst summer a one-room houseboat was prepared, and although it was used 

 tlircugjioiit tlie snmnier. it was found to he rather small for the work. 

 Last sunnner a two-room houseboat was built, special attention being i>aid 

 to the design. 



This boat was found to be so well suited to the purpose that a stern 

 jiaddie and an engine were iustabed. and it is to be used on Wliite Kiver 

 next sunnner. 



Although no inuiiediate results were looked for, yet an agitation was 

 started in three places on the Ohio Kiver resulting in a treated water 

 supply for one cit.v and a change from the river to a well supply in two 

 towns, so that it is felt that the cost of the triji has Huir(> than been 

 .institied already. 



A'aluable work can be done by the ditferent States with resjtect to the 

 rivers lying wholly within their control. Iiut a great munber of our im- 

 ]x)rtant rivers flow through many States, and instead of having a State 

 I>r()blem we have an interstate one. which is far more difhcult to handle. 

 It is therefore not a ]>roblem for one State, mu- for a few of the States 

 along a river, but one which re<leral legislation will have to regulate. 



At a joint meeting of two comjiarative new associations, the Great 

 Lakes Pure Water Association. an<l the National Association for Prevent- 

 ing the Pollution of Rivers and Watenvays. h(>]d at Cleveland. Ohio, last 



