Quality Management Committee
Clark County Regional Flood Control District
600 S. Grand Central Pkwy. Las Vegas, NV 89106
Management Practices for:
Contractors, Construction Inspectors, Home Builders,
Developers, Masons & Bricklayers, and Construction
two most common sources of stormwater pollution problems associated
with construction activities are erosion and sedimentation.
Failure to maintain adequate erosion and sediment controls at
construction sites often results in sediment discharges into
the storm drain system, creating multiple problems once it enters
local waterways. Construction vehicles and heavy equipment can
also track significant amounts of mud and sediment onto adjacent
streets. Additionally, wind may transport construction materials
and wastes into streets, storm drains, or directly into our
a contractor, site supervisor, owner or operator of a site,
you may be held responsible for the environmental damage caused
by your subcontractors or employees. Following these construction
BMPs will enable your company to reduce stormwater pollution.
Advance Planning to Prevent Pollution
existing vegetation only as needed.
excavation, grading, and paving operations for dry weather
periods, if possible.
a specific area of the construction site, well away
from storm drain inlets or watercourses, for material
storage and equipment maintenance.
and implement an effective combination of erosion and
sediment controls for the construction site.
source reduction by ordering only the amount of materials
that are needed to finish the project.
your employees and subcontractors about stormwater management
requirements and their pollution prevention responsibilities.
the amount of surface runoff at the construction site
by impeding internally generated flows and using berms
or drainage ditches to direct incoming off site flows
to go around the site. NOTE: Consult
local drainage policies for more information.
Best Management Practices
following Best Management Practices (BMPs) can significantly
reduce pollutant discharges from your construction site.
Compliance with stormwater regulations can be as simple
as minimizing stormwater contact with potential pollutants
by providing covers and secondary containment for construction
materials, designating areas away from storm drain systems
for storing equipment and materials and implementing good
housekeeping practices at the construction site.
all storm drain inlets and streams located near the
construction site to prevent sediment-laden water
from entering the storm drain system.
access to and from the site. Stabilize construction
entrances/exits to minimize the track out of dirt
and mud onto adjacent streets. Conduct frequent street
stockpiles and construction materials from winds and
rain by storing them under a roof, secured impermeable
tarp or plastic sheeting.
storing or stockpiling materials near storm drain
inlets, gullies or streams.
detention/retention structures or ponds at key outfall
areas to capture rainwater and allow it to percolate
into the ground rather than drain from the site.
grading operations to limit disturbed areas and duration
major maintenance and repairs of vehicles and equipment
out concrete mixers only in designated washout areas
at the construction site.
and operate small concrete mixers on tarps or heavy
plastic drop cloths.
construction sites clean by removing trash, debris,
wastes, etc. on a regular basis.
up spills immediately using dry clean up methods (e.g.,
absorbent materials such as cat litter, sand or rags
for liquid spills; sweeping for dry spills such as
cement, mortar or fertilizer) and by removing the
contaminated soil from spills on dirt areas.
erosion by implementing any or a combination of soil
stabilization practices such as mulching, surface
roughening, and temporary silt fencing.
all vehicles and equipment in good working condition.
Inspect frequently for leaks, and repair promptly.
proper waste disposal. Many construction materials
and wastes, including solvents, water-based paint,
vehicle fluids, broken asphalt and concrete, wood,
and cleared vegetation can be recycled. Materials
that cannot be recycled must be taken to an appropriate
landfill or disposed of as hazardous waste.
open dumpsters with secured tarps or plastic sheeting.
Never clean out a dumpster by washing it down on the
for an adequate debris disposal schedule to insure
that dumpsters do not overflow.
of Construction BMP Implementation
Vegas Valley Construction Site Best Management
Practices Guidance Manual
BMP Guidence Manual was developed by Clark
County Regional Flood Control District and
the Las Vegas Valley Stormwater Quality Management
Committee to assist the members of the public
involved in planning, designing and implementing
construction activities with the requirements
set forth in the Nevada Stormwater General
Permit for Construction Activities. (20.9
|Nevada Contractors Field Guide for Construction Site Best Management Practices (BMPs) - This brochure is provided by the Nevada Division of Environmental Protection (NDEP), the Truckee Meadows Storm Water Coordinating Committee (TMSWPCC), the Washoe County Regional Water Planning Commission, and the Clark County Regional Flood Control District to provide best management practices for erosion prevention, sediment control, waste management, fueling, and cleaning activities for construction sites.
Pollution - What You Should Know For...General
Construction & Site Supervision
This brochure is published by the Stormwater
Quality Management Committee as a new guide
for the construction industry. The brochure
outlines Best Management Practices (BMPs)
for developers, general contractors, home
builders, construction inspectors, and anyone
in the construction business. Following the
practices outlined in this guide can significantly
reduce pollutant discharges at construction
sites. [Print format: 11x17 inches]
a General Construction Activities Stormwater Permit:
Nevada Division of Environmental Protection (NDEP) adopted
the General Permit for Stormwater Discharges Associated
with Construction Activity (NVR100000), superseding the
now expired General Permit GNV0022241. This permit is
administered and enforced by the NDEP, with cooperation
from local municipalities that have their own ordinances
controlling discharges to the drainage system. The General
Permit for Construction Activity establishes a number
of stormwater management requirements for construction
site owners and operators.
Land? - You May Need a Stormwater Permit!
- This brochure is published by the Stormwater
Quality Management Committee as a guide for
the construction industry on how to develop
a Stormwater Pollution Prevention Plan (SWPPP)
and obtain a stormwater permit through the Nevada
Division of Environmental Protection (NDEP).
NDEP requires all construction activity that
disturbs one or more acres of land to have a
Storm Water Pollution Prevention Plan (SWPPP)
readily available for site inspectors and in
use prior to land disturbance. [Print format:
8.5 x11 inches]
my construction site require coverage under the General
Permit for Construction Activity?
if construction activity results in the disturbance of
one (1) or more acres of total land area or is
of a common plan of development that results in the disturbance
of one (1) or more acres.
do I obtain coverage under the General Permit for Construction
the permit package and submit the completed Notice of
Intent (NOI) form to the NDEP prior to grading or disturbing
soil at the construction site. For ongoing construction
activity involving a change of ownership, the new owner
must submit a new NOI within 30 days of the date of change
of ownership. The completed NOI along with the required
fee should be mailed to the NDEP.
the following NDEP websites to obtain more detailed information
about the General Permit for Stormwater Discharges Associated
with Construction Activity:
must I do to comply with the requirements of the General
Permit for Construction Activity?
BMPs for non-stormwater discharges year-round.
and implement a Stormwater Pollution Prevention Plan
(SWPPP) prior to commencing construction activities.
a copy of the SWPPP at the construction site for the
entire duration of the project.
the anticipated stormwater run-off.
an effective combination of erosion and sediment control
on all soil disturbed areas.
site inspections prior to anticipated storm events,
every 24 hours during extended storm events, and after
actual storm events.
repair and maintenance of BMPs as soon as possible after
storm events depending upon worker safety.
the SWPPP, as needed, to manage pollutants or reflect
changes in site conditions.
description of post-construction BMPs at the construction
site, including parties responsible for long-term maintenance.
the following NDEP website here
to obtain more detailed information about developing construction
stormwater pollution prevention plans (SWPPP)
long is this General Permit for Construction Activity
Permit coverage stays in effect until you submit a Notice
of Termination (NOT) to the NDEP. For the purpose of submitting
a NOT, all soil disturbing activities have to be completed
and one of the three following criteria has to be met.
uniform vegetative cover with 70 percent coverage has
been established; or,
stabilization measures such as the use of reinforced
channel liners, soil cement, fiber matrices, geotextiles,
etc., have been employed.