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Water & Wastewater Treatment

Corrosion-resistant lighting engineered for water and wastewater treatment plants.

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Water & Wastewater Treatment

Water and wastewater treatment facilities combine constant moisture exposure, corrosive chemical treatment processes, and, in some cases, combustible gas risk from treatment byproducts. Red Sky Lighting engineers corrosion-resistant, hazardous-rated luminaires built for treatment plant environments.

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  • BLOCK H1 Series

    BLOCK H1 Series

    BLOCK H1 Series

    SKU BLK2 H1

    Explosion-proof, energy-efficient industrial lighting

  • BLOCK H2 Series

    BLOCK H2 Series

    BLOCK H2 Series

    SKU BLK2 H2

    Durable, versatile light for hazardous zones

  • BLOCK HARSH Series

    BLOCK HARSH Series

    BLOCK HARSH Series

    SKU BLK2 HS

    NEMA 4X rugged LED lighting for harsh areas

  • BLOCK MINI H1 Series

    BLOCK MINI H1 Series

    BLOCK MINI H1 Series

    SKU BLM2 H1

    Compact, explosion-proof LED built for hazardous locations that demand reliability and long service life.

  • BLOCK MINI H2 Series

    BLOCK MINI H2 Series

    BLOCK MINI H2 Series

    SKU BLM H2

    Versatile C1D2 LED with multiple mounting options

  • BLOCK MINI HARSH Series

    BLOCK MINI HARSH Series

    BLOCK MINI HARSH Series

    SKU BLM HS

    NEMA 4X compact LED lighting for harsh environments

  • LINEAR HARSH Series

    LINEAR HARSH Series

    LINEAR HARSH Series

    SKU LNR2 HS

    NEMA 4X linear LED lighting for harsh environments

  • LINEAR Series

    LINEAR Series

    LINEAR Series

    SKU LNR2

    Linear lighting in multiple lengths

  • LINEAR TUFF Series

    LINEAR TUFF Series

    LINEAR TUFF Series

    SKU LNT2

    Robust linear light for tough environments

  • MODULAR MAX HARSH Series

    MODULAR MAX HARSH Series

    MODULAR MAX HARSH Series

    SKU MDX HS

    UL-Certified High-Lumen LED Flood & High Bay for Harsh Areas

  • ROUND HARSH Series

    ROUND HARSH Series

    ROUND HARSH Series

    SKU RND2 HS

    NEMA 4X high bay LED for harsh environments

  • ROUND MAX HARSH Series

    ROUND MAX HARSH Series

    ROUND MAX HARSH Series

    SKU RDX HS

    NEMA 4X rugged LED lighting for harsh environments

  • ROUND MAX Series

    ROUND MAX Series

    ROUND MAX Series

    SKU RDX

    Wide-coverage round light for large areas

  • ROUND Series

    ROUND Series

    ROUND Series

    SKU RND2

    Compact, powerful light for various applications

Lighting Solutions in Action

Explore how facility owners, engineers, and distributors have put Red Sky Lighting fixtures to work in demanding hazardous-location and industrial environments.

2 results

Document
PS-1084
Water & Wastewater Treatment
Wisconsin, USA
  • Linear Series
PS-1085
Water & Wastewater Treatment
Ohio, USA
  • Linear Tuff Series

Lighting Challenges in Water & Wastewater Facilities

Treatment facilities involve constant moisture exposure and, in wastewater treatment specifically, potential methane gas generation from anaerobic digestion processes — requiring Class I Division 1 or Class I Division 2 rated fixtures in digester and gas-handling areas. Chemical treatment processes (chlorination, disinfection) also introduce corrosive conditions calling for NEMA 4X or Heavy-Duty Harsh Rated Lighting construction.

Outdoor treatment areas — clarifiers, aeration basins, outdoor piping — additionally require robust IP66 or IP67 ingress protection for continuous weather and moisture exposure.

Recommended Fixture Types

Required Certifications

  • UL 844 — for classified gas-hazard areas within treatment facilities
  • UL 1598 — for standard, non-classified treatment plant lighting
  • DLC — for facilities pursuing utility rebate programs

Choosing the Right Fixture for Your Site

Confirm whether your facility generates methane or other combustible gases (common in wastewater digestion, less common in standard water treatment), which determines whether hazardous-location classification applies. Separately, evaluate corrosive chemical exposure and outdoor moisture conditions to determine appropriate ingress protection and material construction.

Frequently Asked Questions

Do water treatment facilities need hazardous-location lighting?

It depends on the specific facility. Wastewater treatment plants with anaerobic digestion processes can generate methane gas, requiring classified fixtures in those areas. Standard water treatment facilities without gas-generating processes typically don't need hazard classification.

What ingress protection is needed for outdoor treatment areas?

This depends on exposure conditions. IP66 covers powerful water jets and weather exposure; IP67 adds protection against temporary submersion, relevant for flood-prone or low-lying treatment areas.

Can treatment plant lighting upgrades qualify for utility rebates?

Yes, LED fixtures with DLC certification may qualify for utility rebate programs, which can help offset lighting upgrade costs for treatment facilities.