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Glendale, CA Environmental Rules: Stormwater Management (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Governing chapter
GMC Chapter 13.42
NPDES permit source
LA Regional Water Quality Control Board
Permit issue date
November 8, 2012
Enforcing agency
Director of Public Works
Illicit connections
must be removed or disabled
Violation classification
punishable under Chapter 1.20

Summary

Glendale bans discharging flammable, toxic, medical or hazardous materials, obstructive solids, or anything that creates a public nuisance into its storm drains, under a citywide NPDES stormwater ordinance. The Department of Public Works enforces the ban with notices, administrative orders and cost recovery.

General Discharge Prohibitions. No person shall discharge, cause, permit, or contribute to the discharge of any of the following to the storm drain system or receiving waters: 1. Any liquids, solids or gases which by reason of their nature or quantity are flammable, reactive, explosive, corrosive, toxic or radioactive, or by interaction with other materials could result in fire, explosion or injury; 2. Any solid or viscous materials which could cause obstruction to the flow or operation of the storm drain system; 3. Any pollutant that injures or constitutes a hazard to human, animal, plant or fish life, or creates a public nuisance; 4. Any noxious or malodorous liquid, gas or solid in sufficient quantity, either singly or by interaction with other materials, which creates a public nuisance, hazard to life, or inhibits authorized entry of any person into the storm drain system; 5. Any medical, infectious, toxic or hazardous material or waste.

Full Breakdown

42 implements the municipal stormwater NPDES permit issued to Los Angeles County and 85 cities by the Los Angeles Regional Water Quality Control Board on November 8, 2012, under Section 402(p) of the Clean Water Act and the California Water Code. 030(A) lists the general discharge prohibitions that apply to everyone: no flammable, reactive, explosive, corrosive, toxic or radioactive liquids, solids or gases; no solid or viscous material that could obstruct the storm drain system; no pollutant that injures or hazards human, animal, plant or fish life or creates a public nuisance; no noxious or malodorous material in quantities that create a hazard or block entry to the storm drain system; and no medical, infectious, toxic or hazardous material or waste of any kind.

Subsection (B) layers additional bans on industrial and commercial activities, prohibiting wastewater from mobile steam or carpet cleaning, runoff carrying grease, oil, antifreeze or other machinery fluids, washdown of toxic materials, and wash water from construction or grading equipment or gas stations and auto repair shops, unless covered by an NPDES permit. 040 separately bans illicit connections that convey illicit discharges to the storm drain system, requiring anyone who discovers one to remove it or disable it, or have the director of public works remove or disable it and bill the owner for the cost. 20. 170.

Violations & Fines

Discharging a prohibited material listed in Section 13.42.030, or maintaining an illicit connection under Section 13.42.040, is a violation of Chapter 13.42 punishable under Chapter 1.20 of the Glendale Municipal Code. The director of public works can issue a notice of violation or administrative order under Section 13.42.160, enter the property to inspect and sample, and bill the responsible party an invoice of costs to recover the city's actual enforcement expenses; remedies are cumulative and not exclusive of other legal action the city may pursue.

Frequently Asked Questions

What can't be dumped into Glendale storm drains?
Section 13.42.030(A) bans flammable, reactive, explosive, corrosive, toxic or radioactive materials, solids that could obstruct the storm drain, pollutants that harm people, animals, plants or fish or create a nuisance, and any medical, infectious, toxic or hazardous material or waste, regardless of quantity.
Does Glendale's stormwater rule apply to businesses specifically?
Yes. Section 13.42.030(B) separately bans industrial and commercial dischargers from releasing wastewater from mobile steam or carpet cleaning, runoff with grease, oil or antifreeze, washdown of toxic materials, or wash water from construction equipment, auto shops or gas stations into the storm drain system unless an NPDES permit allows it.
What happens if I have an illegal pipe connected to Glendale's storm drain?
Section 13.42.040 requires anyone who discovers an illicit connection to remove it or render it incapable of conveying a discharge. If the owner fails to act after the city asks, the director of public works can remove or disable it and recover the cost from the owner.
Who enforces Glendale's stormwater ordinance and what can they do?
The director of public works enforces Chapter 13.42 under Section 13.42.160, with authority to issue notices of violation and administrative orders, enter and inspect properties, require monitoring reports, and bill an invoice of costs to recover the city's enforcement expenses, in addition to violations being punishable under Chapter 1.20.

Sources & Official References

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