We are building the world's first comprehensive database documenting where, how much, and when cities discharge untreated or partially treated sewage directly into the ocean.
This unprecedented transparency project will expose the full scale of ocean sewage pollution and provide the data needed to calculate when our oceans will reach critical tipping points for sustaining marine life.
Every day, billions of gallons of untreated human waste, industrial chemicals, pharmaceuticals, and toxins flow directly from city sewage systems into our oceans. No one has ever created a complete inventory—until now.
Most cities don't publicly disclose their sewage discharge rates, locations, or treatment levels. The data exists but is scattered, hidden, or inaccessible.
Raw sewage contains pathogens, viruses, heavy metals, microplastics, and pharmaceutical residues that contaminate beaches, seafood, and drinking water.
Nutrient overload from sewage causes dead zones, algae blooms, coral death, and mass fish kills. We're destroying the ocean's ability to support life.
With comprehensive data, we can calculate tipping points and predict when ocean systems will collapse under the pollution load.
Browse, search, and analyze sewage discharge data from cities worldwide. This database is continuously updated with verified data from government sources, researchers, and citizen reports.
| City | Country | Population | Discharge Location | Daily Volume (Gal) | Treatment Level | Status | Details |
|---|---|---|---|---|---|---|---|
| Mumbai | India | 20.4M | Arabian Sea | 850M | Untreated | Critical | |
| Tijuana | Mexico | 1.9M | Pacific Ocean | 142M | Primary Only | High Risk | |
| Lagos | Nigeria | 14.8M | Atlantic Ocean | 620M | Untreated | Critical | |
| Barcelona | Spain | 5.6M | Mediterranean Sea | 280M | Secondary | Moderate | |
| Sydney | Australia | 5.3M | Pacific Ocean | 190M | Advanced | Low Risk |
Raw sewage with no treatment
Physical removal of large solids only
Biological treatment removes organics
Removes nutrients, chemicals, pathogens
The world's first comprehensive photographic inventory of ocean sewage outfalls. From government inspection photos to underwater ROV footage, we're documenting every discharge point with visual evidence that can't be denied.
Official photos obtained via FOIA and international public records requests
Professional field images from environmental organizations and watchdog groups
Community-sourced geotagged photos from beaches, coastlines, and outfall sites
Academic research and underwater robot images documenting subsurface outfalls
Geotagged satellite imagery showing visible pollution plumes from space
Aerial documentation of coastal outfalls, discharge plumes, and shoreline impacts
Arabian Sea discharge point documented during 2023 municipal inspection. 120M gal/day capacity.
ROV documentation of 6km underwater outfall tunnel. Research vessel expedition 2024.
New 2.4m diameter outfall pipeline under construction. Citizen documentation of infrastructure expansion.
Have photos of sewage outfalls, discharge pipes, or pollution plumes? Your documentation can expose hidden pollution and hold governments accountable. All photos are geotagged and verified before being added to the library.
Explore every documented sewage outfall on an interactive global map. See photos, discharge data, treatment levels, and environmental impacts for each location. Click any marker to view detailed documentation.
We're building a fully interactive global map with real-time data visualization, photo overlays, and filtering capabilities.
Map Features:
Access verified data, photos, and satellite imagery to expose pollution stories. Download documentation packages for investigative reporting.
Comprehensive dataset for academic studies on ocean pollution, public health impacts, and ecosystem modeling. API access available.
Visual evidence to pressure governments for better treatment infrastructure. Share specific outfall data in campaigns and petitions.
Have photos or videos of sewage outfalls? Your visual documentation can expose hidden pollution and create undeniable evidence for accountability.
Using comprehensive sewage discharge data, pollution rates, and marine ecosystem thresholds, we're building a model to calculate when ocean systems will reach critical failure points.
Model Status: This calculator is currently in development. Results are preliminary estimates based on available data. Full scientific model launching Q2 2026.
Assumptions:
Our calculation model integrates multiple data sources and scientific parameters:
Peer Review: Model will be submitted for peer review once sufficient data is collected. Target: Q2 2026.
We need researchers, activists, journalists, and concerned citizens worldwide to help document sewage discharge data. Your contribution can expose hidden pollution and drive accountability.