My final Director's Letter for the NIEHS Superfund Research Program (SRP) Science Digest fittingly coincides with our celebration of 35 years of the program. I will retire from my position at NIEHS in December. When I became SRP's first director, I envisioned serving a short term before exploring other career paths. But the incredible support from my mentors at NIEHS — Kenneth Olden, Sam Wilson, David Schwartz, Linda Birnbaum, and others — kept me on this journey. The unmatched program staff within SRP over the years have also been instrumental in bringing the vision for this program to life.