Put the same reported TRI, drinking-water, and Superfund measures side by side. These records provide context for follow-up, not a safety rating or environmental-performance score.
Select any two states to compare reported totals and rates from EPA TRI, SDWIS, and the National Priorities List. See our methodology for source coverage and refresh timing.
How do two states compare?
HI vs GU: the short answer
Hawaii reports the larger TRI release total of the two, 12.9M lbs against Guam's 2.0M lbs, across 38 and 10 reporting facilities respectively. On drinking water, 13.6% of Hawaii's 118 systems carry at least one health-based violation record, against 60.0% of Guam's 5. Hawaii has 4 Superfund sites and Guam has 2.
Reported totals from EPA TRI, SDWIS health-based violation records, and the Superfund National Priorities List. Higher or lower reported figures are not a rating of environmental performance, safety, or compliance quality.
Data sources: EPA Toxics Release Inventory (TRI), Safe Drinking Water Information System (SDWIS), and National Priorities List (Superfund).
Teal marks the lower reported figure and
amber the higher figure for that row. Neither is an environmental-performance rating.
According to the U.S. Environmental Protection Agency, every figure on this page is computed
from PlainEnviro's database of more than 25,000 TRI-reporting facilities, 49,190 public water systems and
1,839 Superfund National Priorities List sites; toxic-release totals cover the 2023 TRI
reporting year, while drinking-water violation records run through 2025. No state is scored,
rated or recommended here, the two columns simply place each state's reported figures
side by side; see our
methodology for
full source citations and refresh cadence.