Post on 20-Mar-2018
DEPARTMENT OF PLANNING AND
PERMITTING
RULES RELATING TO WATER
QUALITY
CONSTRUCTION
February 21, 2017
1
AGENDA 2
Survey
• Please take the survey
PART-1 CONSTRUCTION
• New DPP Water Quality Rules
• New Categories (1a, 1b, 1c)
• Erosion Sediment Control Plan (ESCP)
• BMP Inspections
• Inspection Data from City Projects
• Return Survey, Pickup Handouts
BREAK PART-1b GOOD & BAD BMPS
BREAK
PART-2 POST CONSTRUCTION
WHY? 3
https://www.youtube.com/watch?v=fYy2
018y0lA
One DPP Rule for Water
Quality 5
Erosion Rules
Drainage Rules
Section II
Rules Relating to
Water Quality
DPP Administrative Rules Title 20
Flood control requirements will be
separate
One DPP Rule for Water
Quality 6
http://www.honolulu.gov/dfmswq/calendar/875-site-dfm-swq-
cat/21038-rules-relating-to-storm-drainage-standards.html
Definitions revised (§20-3-3) 7
Key Definitions:
“Development”
“Director”
“Disturbed Area”
“Land Disturbing Activity”
“Maximum Extent Practicable”
“Redevelopment”
Variances (§20-3-64) 8
For deviations from the Rules, applicants must submit a petition for variance to the director and may be authorized if all of the following are true:
The variance is necessary to prevent a hardship caused by unique Site conditions on the property that are not ordinarily found in other areas within the City;
The unique conditions on the property are not the result of petitioner’s own actions or the actions of h/her agents, contractors, consultants, or tenants;
Granting a variance will not adversely affect the rights of abutting property owners;
The variance requested will not result in an unreasonable threat of Pollutant discharges to the MS4 or State Waters;
The variance requested is the minimum accommodation needed to overcome the hardship caused by naturally occurring conditions on the property; and
Pollutant discharges to the MS4 and State Waters will not exceed levels that would occur if the petitioner complied with a strict application of these rules.
Major Revisions from 1999 Rules
Relating to Soil Erosion Standards 10
No requirement for Soil Loss Calculations
No minimum BMP checklists
Updated minimum BMPs
Updated BMP standards
ALL categories must submit Erosion and Sediment Control Plan (ESCP)
ESCP templates for small projects
Applicants must designate an ESCP coordinator to implement the ESCP and perform inspections
New requirements for Self-Inspection
ESCP Requirements 11
Cat 5 Cat 4 Cat 3 Cat 2 Cat 1c Cat 1b Cat 1a
(a) ESCPs for Category 5 Projects must be
prepared by an _______ and must designate a
person responsible for implementing the ESCP at
the Project Site (“ESCP Coordinator”). The ESCP
must provide the phone number, mailing
address, and email address of the ESCP
Coordinator and be signed by the owner of the
property and the ESCP Coordinator.
PE in
Hawaii
PE in
Hawaii
PE in
Hawaii
Property
Owner or
Rep
PE in
Hawaii
Property
Owner or
Rep
Property
Owner or
Rep
(b) The ESCP must contain information that is
sufficient to allow the Director to evaluate the
environmental characteristics and impacts of the
Project on the MS4 and Receiving Waters, and
include, at a minimum:
yes yes yes yes yes
(1) A location map showing the name, coordinate,
and classification (e.g., Class 1, 2, Class A, Class AA
waters) of Receiving Waters, as identified
through the DOH State Water Quality Map,
available at the DOH Clean Water Branch website;
yes yes yes
(2) A vicinity map showing the location of
streams, channels, and drainage Structures
located within ___ feet of the Project Site;
yes
100'
yes
100'
yes
50'
yes
50'
yes
100'
(3) The location of the 100-year flood plain as
shown on the FEMA Map Service Center website;yes yes yes
EROSION & SEDIMENT CONTROL PLANS (ESCP)
ESCP Requirements 12
(1) Erosion Control ROH #City BMP
Manual
(i) Project Planning and Design §20-3-27 yes yes yes yes yes yes yes
(ii) Project Scheduling; §20-3-28 EC-1 yes yes yes yes yes yes yes
(iii) Slope Management and Protection; §20-3-29 yes yes yes yes yes yes
(iv) Temporary Stabilization; §20-3-30 yes yes yes yes yes yes
(v) Permanent Stabilization ; §20-3-31 yes yes yes yes yes yes yes
(vi) Diversion BMPs to divert runoff from
upstream areas around Disturbed Areas of the
Site;
§20-3-32
yes yes yes yes
(vii) Velocity Dissipation Devices; §20-3-35 EC-10 yes yes yes yes
(viii) Preservation of Existing Vegetation; §20-3-33 EC-2 yes yes
(ix) Minimize Soil Compaction; §20-3-34 yes yes
(2) Sediment Control ROH #City BMP
Manual
(i) Storm Drain Inlet Protection; §20-3-39 SE-10 yes yes yes yes yes yes yes
(ii) Perimeter Controls; §20-3-36 yes yes yes yes yes yes yes
(iii) Buffer Zones; §20-3-40 SE-15 yes yes
(iv) Sediment Traps; §20-3-42 SE-3 yes
(v) Sediment Basins. §20-3-41 SE-2 yes
(3) Good Housekeeping ROH #City BMP
Manual
(i) BMP and Site Maintenance; yes yes yes yes yes yes yes
(ii) Dust Control; §20-3-45 WE-1 yes yes yes yes yes yes yes
(iii) Material Delivery, Storage and Use BMPs; §20-3-46 (b) WM-1 yes yes yes yes yes yes yes
(iv) Stockpile Management BMPs; §20-3-46 (k) WM-3 yes yes yes yes yes yes yes
(v) Spill Prevention and Control BMPs; §20-3-46 (c ) WM-4 yes yes yes yes yes yes yes
(vi) Solid Waste Management BMPs; §20-3-46 (i) WM-5 yes yes yes yes yes yes yes
Project Categories (§20-3-14)
13
Category 1: Development that requires a building permit but does not require a
grading, grubbing, or stockpiling permit.
Category 1a
Must meet ALL of the following criteria:
1. Residential single-family or two-family detached residential
Development;
2. The total Disturbed Area for the Project is less than 1,000 square
feet; and
3. Land Disturbing activities will not occur on slopes equal to or greater
than 15 percent at the Site.
Category 1b Must meet ANY of the following criteria:
1. Commercial Development with less than one acre of Disturbed
Area;
2. Residential single-family and two-family detached Development
between 1,000 square feet and less than one acre of Disturbed
Area; or
3. Residential single-family and two-family detached Development less
than 1,000 square feet of Disturbed Area if work will be performed
on slopes equal to or greater than 15 percent at the Site.
Category 1c Development that involves a Disturbed Area of one acre or more or
requires a NPDES General/Individual Permit Authorizing Discharges of
Storm Water Associated with Construction Activity, issued by the DOH.
No change to definitions for Categories 2-5 (Projects that require a grading, grubbing, or
stockpiling permit)
ESCP Submittal Requirements for
Plan Approval (Subchapter 4) 9
Categories 1c, 3, 4, 5 Erosion and Sediment Control Plan must be prepared by
licensed civil engineer
Categories 1a, 1b, and 2 Erosion and Sediment Control Plan may be prepared by
owner or their authorized agent
Templates provided for Categories 1a and 1b.
ESCP for Category 1a and 1b 15
http://www.honolulu.gov/dfmswq/calendar/875-site-dfm-swq-
cat/21038-rules-relating-to-storm-drainage-standards.html
Inspections must be performed by the ESCP Coordinator designated by the owner/ developer
Pre-construction inspection required for all projects
Contractor Regular Inspections:
All photographs and inspection reports must be compiled in a 3 ring folder or binder or kept electronically, which shall be the Project Log. The Project Log shall be kept on Site or electronically accessible from the Site at all times, in a complete condition, and immediately produced for inspection if request by the Director
BMP Inspections (§20-3-26) 16
Project
Category
Frequency of
Inspection
Checklist
Category 1a, 1b & 2 Once every 30 days Appendix C
Category 3, 4 &
Trenching
Once every 7 days Appendix C
Category 1C & 5 Once Every 7 days Appendix D
Monthly 3rd Party Insp of CITY
Projects 11
3rd Party Inspections
Export Data From
CloudCompli; Top 11
Deficiencies
Produce Training
Sheets; Issue to
Contractors Next FY
Monthly 3rd Party Insp of CITY
Projects 11
Data Represents:
• 426 inspections
• From 2/2/2016 to 9/23/2016
• 69 contractors
• 127 City projects
Monthly 3rd Party Insp of CITY
Projects
TEST QUESTION
Which trend would mean compliance
improvements over time?
• Contractor A
• Contractor B
• Contractor C
• Contractor D
Monthly 3rd Party Insp of CITY
Projects
TEST QUESTION
Which trend do you like and why?
• Contractor A
• Contractor B
• Contractor C
• Contractor D
Monthly 3rd Party Insp of CITY
Projects
First 4 insp
Avg ~ 2.3
First insp
Avg ~ 3.9
Avg+1sd ~ 8.2
Would first insp
suggest problem
contractor??
Monthly 3rd Party Insp of CITY
Projects 11
SEDIMENT CONTROL
SE-1 Silt Fence
SE-7 Street Sweeping and Vacuuming
SE-10 Storm Drain Inlet Protection
SE-16 Compost Socks and Berms
TRACKING CONTROL
TR-1 Stabilized Construction Entrance/Exit
NON-STORM WATER MANAGEMENT
NS-10 Vehicle and Equipment Maintenance
WASTE MANAGEMENT
WM-1 Material Delivery and Storage
WM-3 Stockpile Management
WM-4 Spill Prevention & Control
WM-5 Solid Waste Management
WM-8 Concrete Waste Management
Reference: CITY AND COUNTY OF HONOLULU, STORM
WATER BEST MANAGEMENT PRACTICE MANUAL,
CONSTRUCTION, FINAL, November 2011
Free Stormwater Training for
Contractors 11
http://www.honolulu.gov/dfmswq/calenda
r/875-site-dfm-swq-cat/21038-rules-
relating-to-storm-drainage-
standards.html