Adirondack Septic Tank, Inc. As the septic service Amsterdam, NY and neighboring areas can depend on, our business provides a myriad of excellent septic, sewer, and drain cleaning services you can take advantage of. We've been in business since 1971, and we take pride in how our business has grown throughout the past several decades. We have earned the trust of New York residents with our top-of-the-line services, and we hope you can be our next customer!