The system of annual inspection by private agencies was soon found to be unsatisfactory since the interested firms/manufacturers were not found to give a wholly correct and impartial picture of the condition of water works plants.
In the Year 1916, the U.P. Municipalities Act was enacted. In this Act public duties of the Municipal Boards were defined and detailed procedure was laid down giving effect to various matters of public interest. Sources of raising Board's revenues were also prescribed
On the termination of the First World War, another installment of reforms was conferred in 1920, which created a diarchal form of Government placing wider powers in Indian hands, by associating them increasingly with civil administration and putting the "transferred subjects" under the direct control of responsible Ministers. In the year 1920, Secretary of State for India sent out a number of specialist officers on the basis of covenanted service, to introduce health schemes on more up to date lines based on western model, as was recommended by the Royal Sanitary Commission. Accordingly a batch of seven Specialist Officers (six Sanitary Engineers and one Mechanical Engineer) arrived in Allahabad on the eve of the Christmas of 1920; they were attached to Sanitary Engineering Branch. These Specialist Officers gave out many recommendations on various issues, which reconfirmed the special nature of job of Sanitary Engineering Branch besides its need for further strengthening & expansion.
In 1943 Bhore Health Survey and Development Committee was formed to carry out detailed investigations as to the cause of existing unhealthy conditions and prevalence of various diseases. The Committee Report was published in 1946 and as one of the measures to reduce incidence of diseases, the Committee recommended installation of protected water supply and proper drainage system.