Water regulations for your industrial site
This US edition explains wastewater permits, pollutant controls, water reuse, water availability and the records an industrial facility may need. Start with the federal framework, then read the profile for your state. Your discharge permit, sewer authorization and water supply conditions determine the requirements for your facility.
Which rules apply to your site?
The United States and Europe are documented separately: US federal and state rules in English, European rules in French.
Other countries and regions do not have a profile yet; they will be added once their content and sources have been written and verified.
Select your state
Detailed state profiles in this edition: California, Texas, Arizona, Nevada, Colorado, Florida, New York and Michigan. This is a federal overview with eight documented state profiles, not a completed review of all 50 states. For other locations, the federal overview remains useful but a state and local review is still needed.
Capabilities to consider for your industrial water project
The following describes HydrensO's documented industrial offer. It provides a common reference for the US edition; the Your needs blocks describe the facility's requirements and do not select a solution or promise a result before site assessment and pilot validation.
Analysis and ongoing water quality monitoring
The offer includes characterization of incoming water, process streams and outgoing effluent; microscopy, microfluidics and AI-supported analysis; physicochemical sensors; and complementary laboratory analyses. Define the available parameters, sampling methods and monitoring frequency for the site. Compound-specific regulatory analyses may require a qualified laboratory and approved methods.
Treatment, retreatment, recycling and rainwater
Modular treatment options in the offer include separation, flotation, biological treatment including MBBR and biofiltration, ultrafiltration and reverse osmosis. A complete chain or an additional stage after an existing plant can be studied. Assess integration with existing equipment, internal recycling and rainwater recovery against the water characteristics and the intended use.
Concentrate management and constructed-wetland options require an effluent-specific design. A zero liquid discharge¹ target depends on validated compatibility and sizing; residual solids and other materials still require management. These are engineering options to evaluate, not performance commitments for all sites.
Digital supervision, traceability and authenticity
PILOTE supervision and a secure client platform can organize quality trends, alerts, operating history and integration with existing control systems. The documented chain of trust links measurements and reports to their origin and supports authentication. Certification refers to the authenticity of data and reports; it does not certify overall water quality or replace official regulatory signoff.
The French offer describes COFRAC accreditation as a process in preparation. It must not be presented as current accreditation or as a US laboratory approval. For US reporting, determine the methods and laboratory qualifications required by the responsible authority.
Engineering, operation and financing
The documented project sequence is site audit, engineering and costing, real-effluent pilot, deployment, operation and maintenance under the agreed scope. Assess eligible funding, project finance or water-as-a-service arrangements on a project basis. European funding programs must not be carried over as US entitlements.
Let's discuss your wastewater and your goals for reducing water withdrawals.
Request an auditQuestions industrial facilities ask
Does connecting to the sewer remove the need for treatment?
No. Industrial wastewater still has to meet applicable pretreatment standards, general prohibitions and local limits. Identify what the receiving plant is authorized to accept and which records it requires from your facility.
Can one nitrate test establish compliance for all nitrogen?
No. Nitrate, nitrite, ammonium and total nitrogen are different parameters. Use the permit's specified form, unit and averaging period. The same distinction applies to phosphate and total phosphorus.
Does recycled water work for every industrial use?
No. An approved cooling-water source can still need retreatment for a boiler or production process. Check salts, hardness, particles, organics, microbes and any relevant metals or PFAS, along with the applicable reuse approval.
Does reducing withdrawals always save the same amount of basin water?
No. Withdrawals, consumption, evaporation and return flows are different. Where treated wastewater returns to the source, the basin benefit depends on what happens to those returns as well as the inlet volume saved.
Does authenticity certification prove legal compliance?
It establishes authenticity within the defined certification scope. Compliance also depends on correct sampling, approved methods, applicable laboratory qualifications, limits and reporting. A report cannot establish compliance for a parameter that was never measured.
What about a state without a detailed profile?
Use the federal overview as an introduction. State, local, tribal or federal-jurisdiction requirements must still be checked for the actual location. The site must clearly show where detailed profiles are available and must not label an unreviewed state as fully documented.
What should we establish before choosing equipment?
Map incoming water, production uses, reuse loops and all outgoing streams. Identify authorizations and target quality, assess treatment or retreatment and residual routes, define inlet and outlet analyses and ongoing quality monitoring, then validate the proposed design and performance through the site audit and pilot.
Detailed state profiles in this edition: California, Texas, Arizona, Nevada, Colorado, Florida, New York and Michigan. This is a federal overview with eight documented state profiles, not a completed review of all 50 states. For other locations, the federal overview remains useful but a state and local review is still needed. Your discharge permit, sewer authorization and water supply conditions determine the requirements for your facility.
Do you really know the quality of your water, at process inlet and outlet?
Let's start with a water audit: a site-specific assessment to identify your savings potential and define the right solution.