In 1893 Spring Valley was without a water system, and permission was granted to Peter Lespinasse to form a water company to be known as the Spring Valley Water Company. 

     In the beginning of 1897, the question uppermost in the minds of residents was "What if a fire should come?" The Columbian Engine Company was without a steam engine; it was not in a position to purchase an engine, and even if it had one there was no water supply. 

     In November 1897, the Columbian Engine Company purchased a steam engine and the next year a lookout tower was erected on the Engine House "to enable them to locate a fire at once" Before this, when a fire alarm sounded, a lot of time was wasted finding out where to take the apparatus. 

     Immediately after incorporation, First National Bank was named the depository of the village funds. The Rockland County Leader became the official village paper. A map of the village was made. A sidewalk law was enacted compelling all property owners to lay flag sidewalks. In 1908 Main Street was paved from the railroad crossing to Grove Street.

     The village paid 25 per cent of the cost and the property owners 75 per cent. 
By the year 1910 the village had several miles of graded streets and concrete curbing and gutters. Its water supply was fine and pure. It had eight drilled wells, the deepest over 500 feet. Nanuet, Orangeburg, Sparkill, and Tappan were supplied with water from Spring Valley. The Dunlop silk mills employed 300 people and was operating day and night. Consolidated Stamp Co. employed 140 people. 

     In 1914 the village board enacted an ordinance prohibiting children under the age of fourteen from remaining on the streets after 9 p.m. unless accompanied by a parent or legal guardian. This "traditional" whistle was still being blown at 9 p.m. until several years ago when the village’s fire whistle was silenced due to repair problems. 
Early in 1917 a movement was started to have a public library in the village and the public was invited to support the project by becoming members of the Library Association which organized on April 9,1917.In 1921 the taxpayers approved an appropriation of $300 annually towards the support of the local library. 

     In March 1920, a fire department was established and the village acquired the fire fighting equipment owned by the three fire companies, Columbian Fire Engine Co. No.1, Spring Valley Hook and Ladder Company No.1, and the Rockland Hook and Ladder Co. Louis Furman of Spring Valley Hook and Ladder Company became the first fire chief of the Spring Valley Fire Department. 

     The population of Spring Valley in 1910 was 2,353. In 1920 it had increased to 4,428. 
In June, 1921 the village board began to consider; whether it should consider constructing and maintaining a sanitary sewer system, consisting of approximately sixteen miles of trunk and lateral sewer mains throughout the streets of the village. The estimated cost was $203,000. 

     A special election was held on July 14,1921 at which time the propositions were adopted authorizing the construction and maintenance of the sewer system and authorizing the issuance of bonds in payment. 

     A plumbing and sewer code was enacted compelling property owners to connect their houses with the sewer in the street adjoining their property. 
The Spring Valley sewer system went into commission on August 8,1924. 

     In November 1924, the Public Service Commission issued orders requiring the Erie Railroad to build a new railway station in Spring Valley before July 1, 1925. The proposed station would cost $35,000 and Spring Valley would have to stand one half of the cost. 
On July 27,1926 taxpayers voted to appropriate $10,000 to buy land for the new station. Actual work was started on October 6, 1927. 

     In April 1926, President Chester Heitman of the village board appointed a commission to zone the village and provide that only buildings for residential purposes may be erected on certain streets. Dr. Samuel Berg was chairman and Fred Braband secretary. 
The zoning ordinance prepared by the commission was adopted by the village board on September 29,1926. 

     On October 8,1928, the village board granted a franchise to the Ramapo Gas Corp. of Suffern to furnish gas to the Village. The company opened an office in November 1929 and by December 1929, many sections of the village were using gas furnished by this company. 

     Spring Valley received the lion's share of state road money spent in Rockland County in 1929. $800,000 was appropriated and $300,000 was spent on roads in the village. Principal improvements were the rebuilding of Main Street. 
In this year the village board put into service on Main Street, the improved electric lighting system which made Spring Valley the Great White Way of Rockland County. Spring Valley was the first village in Rockland County to put in a high candle power lighted Main Street. 

     The new Spring Valley Post Office was dedicated by Postmaster General James A. Farley on April 3, 1937. 
On January 31, 1940, the village board voted to adopt parking meters in the business section of the village.