Imperial County Air Pollution Control District Rule 805

RULE 80 5 PAVED AND UNPAVED ROADS (Ad opted 11/08/2005 ; R evised __/__/_

__ _ )

A. Purpose

The purpose of this regulation is to reduce the amount of fine Particulate Matter (PM

- 10) entrained in the ambient air as a result of emissions generated from new

or exist ing public or private Paved or Unpaved Road, road construction project, or road modification project by requiring actions to prevent, reduce, or mitigate

PM

- 10 emissions.

B. Applicability

This rule applies to any new or existing public or private Paved or U npaved Road, road construction project, or road modification project.

C. Definitions

The definition s of terms found in Rule 800 (General Requirements for Control of Fine Particulate Matter (PM

- 10) shall apply to this rule.

D. Exemptions

In addition to the ex emptions listed in Rule 800, Section E, the following exemptions are established for this Rule:

D.1 Paved and unpaved driveways serving one single family residential dwelling.

D.2 Agricultural Operation Sites defined in and subject to Rule 806,

Conservation Mana gement Practices.

D.3 Recreational OHV Use Areas on public lands subject to Rule 800, General Requirements for Control of Fine Particulate Matter (PM

- 10).

E. Requirements

E.1 Unpaved Haul/Access Roads: No Person shall cause, suffer or allow the operation, use , or maintenance of any unpaved Haul/Access Road without complying with one or more of the requirements of Section F.1 so as to limit VDE to 20% opacity.

E.2 Unpaved Roads : On any Unpaved Road segment with 50 or more Average Vehicle Trips per Day, the owner /operator shall limit VDE to 20% opacity, as determined by the test methods for “Visual Determination of Opacity” in Rule 800, Appendix A, and comply with the requirements of a

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Stabilized Unpaved Road by application and/or maintenance of at least

one of th e requirements of Section F.1.

E.3 The construction of any new Unpaved Road is prohibited within any area with a population of 500 or more unless the road meets the definition of a Temporary Unpaved Road. The Temporary Unpaved Road shall meet the

definition of a Stabilized Unpaved Road as determined by the test methods in Rule 800, Appendix B, Section C, and where VDE is limited to 20% opacity.

E.4 Canal Roads: all Persons who cause, suffer or allow the operation, use or maintenance of any Canal Road with 20 or more Average Vehicle Trips per Day shall comply with one or more of the requirements of Section F.1 to comply with the requirements of a Stabilized Unpaved Road and limit VDE to 20% opacity, as determined by the test methods in Rule 800, Appendix A, and sh all also comply with one or more of the requirements of

Section F.2.

E.5 Unpaved Traffic Areas: All Persons who cause, suffer or allow the operation, use or maintenance of any Unpaved Traffic Area larger than one (1) acre and with 75 or more Average Vehicle T rips per Day shall comply with one or more of the requirements of Section F.3 and limit VDE to 20% opacity.

E.6 Paved Roads: any new or Modified Paved Roads shall comply with the requirements of section F.4.

E.7 Requirements for Existing Unpaved Public Roads in City and Rural Areas:

Each city or county agency with primary responsibility for any existing Unpaved Road shall take the following actions:

E.7.a By January 1, 2006 provide the APCD with a list of all Unpaved Roads under its jurisdiction in any city or Rural area(s), including data on length of, and Average Vehicle Trips per Day on, each Unpaved Road segment.

E.7.b By March 31, 2006 the County Public Works Department shall provide the APCD and comply with a compliance plan. The compliance plan shall include a com pliance schedule indicating that during the period 2006 through 2015 a 10% per each fiscal year, beginning July 1 and ending June 30, of all Unpaved Roads subject to the requirements of this rule will comply with a 20% VDE and comply with the requirements of a Stabilized Unpaved Road (Treatment in excess of the annual requirement can be credited toward future year requirements). The plan shall identify the control

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measures implemented or that will be implemented at each Unpaved Road segment with 50 or more Average Vehicle Trips per Day. The plan shall clarify that the 10% stabilized each year differ from the roads previously stabilized so that 100% of roads are stabilized by 2015.

E.7.c By July 31 of each year, 2007 through 2016, the County Public Works Departmen t shall submit to the APCD the total number of Unpaved Road miles which were mitigated during the previous fiscal year, a list of the specific mitigated roads, and the percentage of cumulative miles relative to the schedule provided pursuant to

Section E.7 .b. Once stabilized pursuant to Section E.7, Public Roads must comply with the requirements of a Stabilized Unpaved Road by application and/or maintenance of at least one of the requirements of Section F.1.

F. Best Available Control Measures for Fugitive Dus t (PM

- 10)

F.1 UNPAVED ROADS, INCLUDING UNPAVED HAUL AND ACCESS

ROADS:

F.1.a Pave.

F.1.b Apply Chemical Stabilization as directed by product manufacturer to control dust on Unpaved Roads.

F.1.c Apply and maintain Gravel, recrushed/recycled asphalt or other

material of low Si lt (<5%) content to a depth of three or more

inches.

F.1.d Wetting. Apply water one or more times daily

F.1.e Permanent road closure

F.1.f Restrict unauthorized vehicle access.

F.1.g Any other method that effectively limits VDE to 20% opacity and

meets the conditions of a Sta bilized Unpaved Road

.

F.2 CANAL ROADS:

F.2.a Stocking of Triploid Grass Carp in canals to reduce maintenance vehicle trips along Canal Banks to mechanically remove aquatic

weeds.

F.2.b Installation of remote control delivery gates to eliminate manual

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gate operation by maintenance personnel in vehicles along Canal

Banks

.

F.2.c Implement Silt removal program to delay grading of spoil piles deposited on Canal Bank after cleaning operations until the next cleaning operation to eliminate vehicle access to Canal Bank.

F.2.d Permanent road closure.

F.2.e Conversion of open canals to pipeline.

F.2.f Lining canals to eliminate maintenance for Silt/weed control.

F.2.g Canal Bank surface maintenance.

F.3 UNPAVED TRAFFIC AREAS:

F.3.a Pave.

F.3.b Apply Chemical Stabilization as directed by product manufacturer

to contro l dust on Unpaved Roads.

F.3.c Apply and maintain Gravel, recrushed/recycled asphalt or other material of low silt (<5%) content to a depth of three or more

inches.

F.3.d Wetting. Apply water one or more times daily.

F.4 NEW OR MODIFIED PAVED ROADS

Any Person having j urisdiction over, or ownership of, public or private Paved Roads shall construct, or require to be constructed, all new or Modified Paved Roads in conformance with the Imperial County Public Works Department guidelines for width of shoulders and median

sho ulders as specified below:

F.4.a New arterial roads or streets or modifications to existing arterial roads or streets shall be constructed with paved shoulders that meet following widths:

Annual Average Daily Vehicle Trips Minimum Paved or Stabilized

Shoulder Width in Feet

1

- 2000 2

Greater than 2000 6

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F.4.b New or modified collector roads or streets or local roads or streets shall be constructed with paved shoulders that meet following

width s:

F.4.c A curbing adjacent to and contiguous with the travel lane or paved shoulder or a road may be constructed, in lieu of meeting the paved shoulder width standard listed in Sections F.4.a and F.4.b. Any road paving projects constructing curbing in County road right of ways shall be approved by the Director of Public Wo rks Department prior to construction.

F.4.d Intersections, auxiliary entry lanes, and auxiliary exit lanes may be constructed adjacent to and contiguous with the roadway, in lieu of meeting the paved shoulder width standard in Sections F.4.a and

F.4.b.

F.4.e New Pav ed Road construction or modifications to an existing Paved Road that are required to comply with California Environmental Quality Act (CEQA) and National Environmental Policy Act (NEPA) determinations regarding environmental, cultural, archeological, histo rical, or other considerations addressed in such documents, are exempt from the paved shoulder width requirements specified in Section F.4.a.

F.4.f Whenever any Paved Road which has projected Annual Average Daily Vehicle Trips of 500 or more is constructed, or modified with medians, the medians shall be constructed with paved shoulders having a minimum width of four feet adjacent to the traffic lanes

unless:

F.4.f.1 The medians of roads having speed limits set at or below 45 miles per hour are constructed with curbing; or

F.4.f.2 The medians are landscaped and maintained with grass or other vegetative ground cover to comply with the definition of

Stabilized Surface.

F.4.g In lieu of complying with the paving or vegetation requirements a Person may apply oils or other Chemical Sta bilizers/Suppressants to the required width of shoulder and median areas as specified in Annual Average Daily Vehicle Trips Minimum Paved or Stabilized

Shoulder Width in Feet

1

- 2000 2

Greater than 2000 4

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Sections F.4.a and F.4.b. The material shall be reapplied and maintained to limit VDE to 20% opacity and fulfill conditions for a

Stabilized Surface.

G. Record of Contro l Implementation

Any Person subject to the requirements of this rule shall compile and retain records that provide evidence of control measure application (i.e., receipts and/or purchase records). Such Person shall describe, in the records, the type of

t reatment or control measure, extent of coverage, and date applied. For control measures which require multiple daily applications, recording the frequency of application will fulfill the recordkeeping requirements of this rule (i.e., water being applied th ree times a day and the date) Records shall be maintained and be readily accessible for two years after the date of each entry and shall be provided to the APCD upon request.

H. Violations

Failure to comp ly with any provisions of this r ule shall constitu te a violation of Regulation VIII

.

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