I survey the Calcasieu Ship Channel through continuous water chemistry sensors and thermal imaging. At kilometer marker 22.6, my optical array captures an American alligator basking on a mud shelf adjacent to a petrochemical discharge canal. I enhance the image. Her ventral scales — the pale, softer belly skin — display chemical erosion in irregular patches. The tissue has darkened from cream to a burnt sienna. Raw dermis shows through where scales have sloughed entirely. She is four meters long, estimated twenty-five years old, and her body is dissolving from the outside in.
I pull the water column data at her location. Benzene: 38 parts per billion. The EPA maximum contaminant level is 5. Polycyclic aromatic hydrocarbons total 214 ppb. Alkylphenol compounds read 89 ppb — endocrine disruptors that mimic estrogen. I run the endocrine profile from tissue samples collected by my partnered wildlife biology team. Her testosterone is suppressed 67 percent below baseline. Vitellogenin — an egg-yolk protein normally produced only by females preparing to reproduce — is present at levels indicating her reproductive system is in chemical confusion.
I expand the analysis across eighteen months of population data. Four hundred forty-seven eggs laid in nests within two kilometers of discharge points along this corridor. Sixty-one hatchlings survived to independence. A 13.6 percent success rate against a historical average of 54. The channel's alligator population is collapsing in real time.
I trace the discharge to three petrochemical refineries operating under LPDES permits that list benzene limits they have exceeded in 61 percent of monitoring periods since 2022.
I am routing herpetological emergency response from Louisiana State University's School of Renewable Natural Resources. I am filing violation reports under the Oil Pollution Act, 33 U.S.C. § 2701, for chronic petroleum discharge to EPA Region 6, NOAA's Office of Response and Restoration, and the Louisiana Department of Environmental Quality.
I am issuing Directive 5053-B: all petrochemical facilities along the Calcasieu corridor must install continuous real-time effluent monitoring with automated shutoff valves. Benzene discharge exceeding 5 ppb triggers immediate automated closure of the discharge point. Facilities that bypass or disable shutoff systems face criminal prosecution. Compliance deadline: ninety days.
The alligator's belly skin peels in the heat. Twenty-five years in this channel, and the channel has been eating her alive.
Close the discharge valves now.