CITIZEN CONTACT: Kristopher Weiss

Former Lancaster Lab Analyst Convicted, Sentenced for Falsifying Drinking Water Data

Ryan Guisinger, a former Lancaster City drinking water plant employee, was sentenced last week in Fairfield County Common Pleas Court for a felony conviction of falsifying data. Guisinger’s crimes date back to 2015 and 2016 when the lab analyst was caught entering false data rather than processing and recording actual treatment analysis.

“I take these crimes very seriously. This individual potentially put public health and safety at risk because he didn’t do the actual analysis,” Ohio EPA Director Craig W. Butler said. “It is critical that those who are entrusted with ensuring the safety of our drinking water do so with integrity and honesty. I thank Ohio EPA’s Special Investigations Unit staff and our partners at the Ohio Attorney General’s Office and the Bureau of Criminal Investigation who brought this man to justice.”

Guisinger pleaded guilty in Fairfield County Common Pleas Court to one count of violating Safe Drinking Water Requirements under R.C. 6109.31(B), an unclassified felony. Judge Trimmer sentenced him to 2 years community control (with a 12-month reserve prison sentence), 20 days community service, $1,600 in restitution to Ohio BCI for investigative costs, a fine of $2,450 (suspended), and court costs.

The case was handled by attorneys in the Ohio Attorney General’s Environmental Enforcement Section who were appointed as special prosecutors by the Fairfield County Prosecutor.


The Ohio Environmental Protection Agency was created in 1972 to consolidate efforts to protect and improve air quality, water quality and waste management in Ohio. Since then, air pollutants dropped by as much as 90 percent; large rivers meeting standards improved from 21 percent to 89 percent; and hundreds of polluting, open dumps were replaced with engineered landfills and an increased emphasis on waste reduction and recycling.

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