RICHLAND COUNTY NPDES PROGRAM · Please note that this presentation is not bragging ... 2005-2010 Success Stories 20. NPDES Permit Implementation Overview ... Utilized ASIST software

April 12, 2011

Srinivas Valavala, B Tech, MS, MBA

Stormwater Manager

Richland County Stormwater Management

RICHLAND COUNTY NPDES PROGRAM

Quick Remark

Please note that this presentation is not bragging…

It is just that we recognize our progress, take pride in our accomplishments and like to share our achievements with others.

It is to give the sense of passion and commitment that Richland County has for water quality of its waters and better quality of life for its Citizens.

2

Agenda

Richland County’s:

Stormwater Management Division Overview

NPDES Program History Overview

NPDES Corrective Action Plan Overview

NPDES Permit Implementation Overview

Water Quality Monitoring Program Overview

2005-2010 Success Stories

3

Richland County Department of Public WorksStormwater Management Division

Relatively new division created in FY 2001

Division of Department of Public Works

Millage funded

Stormwater budget fully funded positions - 16

Direct Reports to Division - 10

Division Overview

Functions Overview

Budget Overview

Training

4

SH2O Division Mission

Mission Statement:

To provide Stormwater Management support

(drainage and water quality) to the Citizens of

Richland County in order to improve public safety,

enhance public health and increase public service

through Departmental/Divisional coordination and

public awareness.

5

SH2O Divisional Values Safety

Customer Service

Quality Product or Service

Efficiency & Productivity

Enhance Image of Richland County

Speed

Accountability

Performance

Transparency

6

Richland County Department of Public WorksStormwater Management Division Org. Chart

Director

Storm Water Manager

Reactive Investigations &

Post-Construction

Associate Engineer

Engineering Technician


Sampling, Monitoring& Industrial

Associate Engineer


Dry Weather Screening

Associate Engineer

Proactive Inspections &

IDID


Design & New Construction

OutreachEngineering Technician

Admin Support & Customer

Service Support

Deputy Director

7

8

Stormwater ManagementStakeholders

RC Stormwater Consortium

Conservation Commission

Building Codes &

Inspections

City of Forest Acres

Town of Arcadia Lakes

Public Works Other

Divisions

Planning Department

Gills Creek Watershed Association

State & Federal Govt.

Bodies

Solid Waste Department

Crane Creek Watershed Association

PublicSpecial & Support Services

Utilities Department

Storm Water Management Division Function Chart

10 Full Time Employees (As of October 25, 2010)

Stormwater Manager

Srinivas Valavala

Proactive & IDID


Public Education

Keith Anthony


Associate Engineer

Sampling & Industrial

James Bouknight & Reggie Felder

Wet Weather Monitoring

Ambient Monitoring

Sediment Monitoring

Benthic Monitoring

Stormwater Outreach

Carolina Clear

Public Involvement &

Participation

Illicit Discharge &

Improper Disposal

Proactive Structural Controls

Inspections

Post Construction

Brian Scott,

Albert Little & David Pitts

County Maintained Ditches

County Owned /Maintained

Ponds

Road Runoff Management

Program

Post-Construction

BMPs

Industrial & High risk

Runoff Program

County Owned/

Operated SWPPPs

Spill Prevention & Response &

County Operated SPCC Plans

Customer Service

Bree Tribble

One Stop

Admin Support

Centralized Filing System

Pesticide, Herbicide & Fertilizer

Inspections

Private Pond Inspections


Illegal Dumping

Proactive Structural Controls

Inspections

One stop Service Requests

Investigations

In-House Projects &

Maintenance

Sanitary Sewer Regulatory

Program

9

SH2O Division Budget Overview (Last 6years)

0

0.5

1

1.5

2

2.5

3

3.5

4

4.5

5

FY2006FY2007

FY2008FY2009

FY2010FY2011

FY2012

$ in

Millio

ns

Fiscal Year

Stormwater Management Budgets

Budget Requested

Budget Allocated

10

SH2O Training Approximately $50,000 budgeted a year

Conducts County-wide stormwater related training

SWPPPs, SPCCs, BMPs, New Construction, Industrial etc.

NPDES permit elements training

Safety First and Safety Always

Staff development training

Attend conferences to keep technologically updated

Actively presents at local, state and national conferences

11

Documentation Perpetual Filing System

Records Retention

Maintains documentation

ERP & Electronic Databases

12

Agenda








13

NPDES Program History

March 17, 2000

DHEC issued Phase I (5 yr permit) effective April 15,

2000 through April 14, 2005

December 16-17, 2003

EPA audited County’s permit compliance - Eleven (11)

deficiencies established

June 16, 2005

Issued Notice of Violation

14


December 28, 2005

Consent order received with penalty of $7.3 MILLON

March 13, 2006

Negotiated revised Corrective Action Plan (CAP) and consent order with penalty of $830,549

Quarterly payment plan of $41,500 until April 15, 2011

DHEC refunds half of the penalty

15


May 1, 2006

Effective date for CAP

May 1, 2006 - September 11, 2007

Consent order deadlines successfully accomplished and corresponded to DHEC on a regular basis

August 11, 2006

Renewed second five year permit effective September 11, 2006 through September 10, 2011

16


Aug 8-9, 2007

DHEC held program screening with written “significant improvement” note - Asked to maintain same momentum and provided recommendations

Dec 17-18, 2008

DHEC Audit conducted

July 31, 2009

Audit report with “satisfactory at this point of time” note with recommendations in six different areas

17

Where Are We Now?

Consent Order deadlines accomplished. SCDHEC was made aware

Implementing the re-issued second five year permit effectively to State’s satisfaction.

DHEC held screening for the program with “significant improvement” note.

DHEC conducted audit on the program with “Satisfactory at this time” note. Incorporated recommendations, as they fit to program.

Last date of penalty payment is April 15, 2011

April 12, 2011 - Request for CAP close out

18

Agenda




NPDES Corrective Action Plan Overview – Completed item and is available, if needed




19

Agenda








20


Involvement of Arcadia Lakes, Forest Acres & other stakeholders

Intergovernmental agreements in-place

Implementing CAP developed programs

Recommendations from DHEC screening & audit under implementation

Addressing schedules of the updated stormwater management plan

Maintain “library” of documentation

21

Stormwater Management Plan (SWMP)

Developed SWMP for reissued permit in 2007

MS4-wide plan including for co-permittees

SWMP being revised every year

Covers permit stormwater elements

Stakeholders were involved in the process

22

#1 Structural Controls Inventory and Maintenance

Implemented stormwater infrastructure collection system operation program for MS4

Drainage system inventory completed and mapped (GIS tools available)

Minimized un-permitted discharges

Both Reactive and Proactive Inspection & Maintenance Program in-place

Policed proactively for

Inventory QA/QC

Proactive Maintenance issues

Updates for Missing Inventory

Stormwater Quality Inspections

Dry weather flows

IDID Hunt100% of pipe segments inspected this permit cycle

23

Using GIS for Utility InventoryStormwater inventory

proactive maintenance

290 – Miles of pipe

76 – Miles of channel

2.8 – Miles of culvert

3,545 – Inlets/Outlets

1,148 – Outfalls

13,791 – Catch Basins

29 – County owned/operated ponds

16 – Miles of ditches

30 – Commercial private ponds inspected

487 – Residential private ponds inspected

24

Proactive Maintenance

25

# ##

#

##

####

###

#

#

##

#######

#

##

##

#

#

##

###

#

#

######

#

## ##

###

#

#######

#

#

#

##

#######

###

###

###

###

#

##

#

##

#

#

#

#

##

#

##

#

#

##

# ###

#

## ###

#

#

#

#

##

#

#

#####

#### #

###

#

####

#

#

#### #

#

##

#

#########

############

#

######

##

##

#

#

#

###

#

##

#

#

#

#

#

##

#

#

##

#

##

###

#

#

##

#

#

##

#

#

#

#

##

#

##

#

#

#

#

#

#

#

#

#

#

#

#

#

#

#

Stormwater Inventory

26

Structural Controls Inventory and Maintenance

Inspections conducted per established schedule

Operation and Maintenance of infrastructure tracked

Utilized One Stop, our primary citizen compliant tracking system

Utilized ASIST software for tracking as needed

Response times in-place

In-house crews performs regular maintenance work

Reports & documentation available…

27

Structural Controls Inventory and Maintenance

Commercial ponds are proactively inspected annually and enforced as needed

County owned/maintained ponds proactively inspected annually and maintenance performed by on-call contractor

Private residential ponds inspected once every permit cycle

Ditches inspected annually and proactive maintenance is performed

Post construction BMP maintenance

In-house drainage projects program

Capital improvement projects program

“Effective program in-place” – Quote from DHEC audit result document

28

# 2 New Development & Redevelopment

Site development review process in-place

Stormwater approvals

Policies & procedures in-place

Comprehensive plan under implementation

Strategic plan in-progress

Development Round Table process

Stormwater Ordinance revised recently to address pollution from new development

29

New Development & Redevelopment

Design criteria and performance standards established Example – Buffers requirement

Water Quality design criteria in-place

Measures to reduce impervious surfaces & encourage LID

Education programs

Implementing programs to “effective prohibition” and “MEP standards”.

30

New Development & Redevelopment

Mechanisms in-place:

Development Services & Appeals Board

RC Land Development Code & Ordinances

RC Design Standards/Specifications (roads, stormwater etc…)

RC BMP Manual

Comprehensive Master Plan

Conservation District Overlay

Green Code

Landscaping Standards

Development Round Table

Low Impact Development Programs

Single Window Plan Reviews

Flood Plain Reviews etc…

31

# 3 Existing Roadways Measures to reduce impacts from roadway

runoff in-place Developed and implemented Road Runoff

Management program Addresses spill prevention, material

management, practices and good housekeeping

Road design & construction standards in-place

Snow plan implemented SWPPPs in-place for County maintenance

yards and shops

Maintenance Activity Target Response

Time

(Work Days)

Roads & Drainage Maintenance

Blow Out Repair 20

Carcass 2

Catch Basin 20

Clean/Cut Ditch 20

Cut/Mow Road Shoulder 20

Drainage Problem 20

Flooding in Yard 20

General Concern 10

Graffiti 20

Leaning Sign 2

Paving/Resurfacing 20

Potholes 15

Replace Sign 20

Replace Stop Sign 2

Request Crusher Run 20

Request Driveway Apron 20

Request Road Scrape 20

Request Sign 20

Request Speed Limit Sign 20

Request Stop Sign 20

Request Street Name Sign 20

Request Tree Down in Road 2

Drainage Problem

Blocked Pipe System 10

No System/Structure 20

Major Project 6 months32

Existing Roadways

Operation and maintenance

Proactive inspection program to identify BMPs for unpaved roads and roadside ditches

Uses checklist

Regular maintenance identified & performed

Structural Maintenance and BMPs installed, as necessary

BMP Manual used as guidance

Litter Control Programs

Equipment yards and Maintenance shops good housekeeping

First flush captured and evaluated

238 miles of dirt roads inspected and maintained annually

33

#4 Flood Control Projects

Flood Plain Division regulates construction in floodplains and flood zones

In-house projects are performed to address flooding

Stormwater retrofits were performed considering water quality

New stormwater flooding projects addresses water quality design criteria as well

Stormwater Capital Improvement Project (CIP) Program and watershed improvement programs complement permit element.

34

#5 Municipal Waste Treatment, Storage & Disposal Facilities

Stormwater Pollution Prevention Plans (SWPPPs) developed and implemented for 36 facilities

Spill Prevention Control and Countermeasure Plans (SPCCs) developed and implemented for 6 facilities

Record Retention and Documentation…

35

Municipal Waste Treatment, Storage & Disposal Facilities

Annual Training Conducted

Pollution prevention teams identified

Monthly inspections conducted as needed

Procedures in-place and checklists used

BMP sheet for co-permittees (audit recommendation)

Good Housekeeping techniques

Disposal of materials tracked effectively

Overall management with responsibilities outlined in SWPPP documents

Enforcement response guides and code enforcement

36

#6 Application of Pesticide, Herbicide & Fertilizers

Developed and implemented Pesticide, Herbicide and Fertilizer (PHF) Control Program

Potential sites identified

Inspections

Procedures

Record Keeping

Certification and Licensing

Use 3 pronged approach

DPW

Other Dept’s in RC

Private

Public Education (RCSC)

Partnered with Clemson Extension

32 Pesticide, Herbicide and Fertilizer control hotspots inspected annually

37

Application of Pesticide, Herbicide & Fertilizers

Certified applicators are used on County jobs

Conduct inspections on storage areas of PHFs including for the County facilities

Standards, BMPs and outreach established

Staff training conducted

Closely following new PHF regulations

“County developed a robust program” – SCDHEC audit document

38

#7 Illicit Discharge and Improper Disposal

Dry Weather Screening Program

GIS mapping performed

Outfalls prioritized using criteria

Screening conducted on major outfalls

Data dictionary used

IDID manual

Dry Weather flows sampled as needed

Source identification and outreach

39

Illicit Discharge and Improper Disposal

IDID:

Ordinance & legal authority

In-house Staff allocated

Investigation procedures

GIS equipment used

Enforcement mechanisms

Escalation procedures

Hotline to report

24 hour turn around

Outreach conducted

40


Sanitary Sewer Regulatory Program (SSRP)

Coordination with 10 sanitary sewer providers

SSO reporting Ordinance

Public Reporting procedures for Richland Utilities

Staff training

Infiltration & Inflow issues

GIS mapping

Used for evaluation in future

“Have an effective program for dealing with seeps or leaks from septic tanks”–Quote from DHEC audit results document

41


Spill Prevention Regulatory Program (SPRP)

Emergency Dept. handles

Spills tracking on County facilities

County’s recycling programs complement in collection of used oil and toxics

Public Outreach

Illegal Dumping

Solid Waste Dept. addresses per same enforcement response guidelines

42

#8 Industrial and High-risk RunoffDeveloped and implemented IHR Pollution Control Program

Industrial Database- Industrial facilities that qualify under statewide permit (Eleven categories)

High Risk Database - High risk runoff facilities that qualify under Richland County NPDES Permit (Eleven Categories)

Program in-place with:

• Database

• Inspection process, SOPs, Schedule

• Checklists

• Ordinance

• Outreach

• Training

• Public Education and Awareness

• Outreach to industrial operators, engineers

• Record Keeping of inspections and enforcement

All model forms/checklists are available on RC website at http://www.richlandonline.com/departments/publicworks/NPDES_Industrial.asp

43

http://www.richlandonline.com/departments/publicworks/NPDES_Industrial.asp

Industrial & High Risk Runoff

Own and operates 4 industrial sites – Landfill, Downtown Airport, Landfill and Wastewater Treatment Plant.

Recently submitted NOIs for all four facilities to cover under new regulations.

Industrial and high risk runoff facilities inspection in progress – 245 completed.

Industrial operators conference held two times in this permit cycle.

44

#9 Construction Site Runoff

Engineering Division in Department of Public Works implements the program

CEPSCI certified plan reviewers and inspectors

Stormwater regulations enhanced with an Ordinance change in January 2010

Requirement of Buffers and other pollution prevention measures

Richland County is a Delegated Qualified Local Program (QLP)

45

NPDES – ConstructionQualified Local Program (QLP)

Richland County is an official Delegated Qualified Local Program for Construction site stormwater runoff control and post-construction stormwater management in new development and re-development

Delegator – SCDHEC

Delegatee - Richland County as a regulated Municipality

Co-permittees - Town of Arcadia Lakes and City of Forest Acres are required for Phase II construction minimum measures. RC had agreements with them for performing their minimum measures and included them in our QLP.

Jurisdiction Limits - To avoid any confusion over jurisdictional issue, RC recently entered into Inter-Governmental Local Agreement with Town of Irmo clarifying the responsibilities

46

Construction Site Stormwater Runoff ControlMain Components

Local ordinance specifying legal authority, BMP requirements, operation, maintenance sanctions, penalties for non-compliance

Inventory of construction sites with relevant info and inspection tracking

Plan review and approval process, procedures, guidance and checklists

Inspections and enforcement mechanisms

Prioritization of construction sites (e.g., by impacts, proximity to impaired water bodies etc.)

Public Education (Seminars, Outreach etc)

Training of staff (Plan review, CEPSCI etc)

Training of construction operators, engineers, developers, contractors, plan preparers, construction site managers, construction workers

Record Keeping of Plan review, inspections and enforcement

47

QLP Implementation•Notice of Intent for Land Disturbance Permit Application

• NOI for Stormwater Discharges from Large and Small Construction Activities

•Plan Review • Stormwater Management and Sediment and Erosion Control Plan Review • Checklist for Design Professionals

•Inspections by Site Operators• NPDES Stormwater Construction Compliance Inspection Report for Contractors• NPDES Stormwater Construction Monthly Report

•Inspections by RC Inspectors• NPDES Stormwater Construction Compliance Inspection Report• QA/QC of RC Inspector by Management

•Notice of Termination (NOT)• NOT for Stormwater Discharges from Large and Small Construction Activities

•Process Flow ChartAll model forms/checklists are available on RC website at

http://richlandonline.com/departments/publicworks/NPDES_Construction.asp

48

http://richlandonline.com/departments/publicworks/NPDES_Construction.asp

Post Construction

Inventory of BMPs

Implementing inspection procedures for post construction BMPs

Procedures for citizen drainage concerns

Neighborhood Drainage assessments (Clean Sweep programs)

Installing BMP’s as required

Easement and maintenance characteristics

Enforcement Response Guidelines

Improved documentation and tracking procedures

Promote LID, LEED® & other sustainable stormwater control methods

49

#10 Public Education & Participation

One Staff Member with 50% time & effort

Formed Richland County-wide Stormwater Consortium (RCSC)

Developed “living education plan”

More than 20 partners

Targeted pollutants and Audience

Submitted two annual reports under umbrella of RCSC

“Outcome” approach taken

50

Stormwater Consortium

For more details : http://richlandonline.com/departments/publicworks/NPDES_MS4.asp51

../My Documents/CarolinaClear/plop/Version 2_Lexandothers_Clear_Hugh Copy.wmv

Education Activities

Displays at festivals

Presentations at conferences

Public meetings

Community clean-ups

Newsletter articles

Youth events

Technical training workshops

Storm drain marking

52

Public Education & Participation

Industrial Operator’s Conference

Developer’s Conference

Stormwater Institute held in Columbia

Summer Celebration of Water

53

Ombudsman 929-6000

Stormwater Hotline 576-3599

Visit us at http://www.richlandonline.com/departments/publicworks/index.asp

Ask Stormwater Guru @ http://richlandonline.com/departments/publicworks/storm.asp

Local Richland County Stormwater Watchdog

54

http://www.richlandonline.com/departments/publicworks/index.asp

http://richlandonline.com/departments/publicworks/storm.asp

Richland County-wide Stormwater Consortium (RCSC)Table 1. Comparison of Stormwater Education Program Outputs

Category Percent Increase2009 2010

Total impacts 283,345 725,668 156%

Total activities 41 88 115%

Education partners participating 13 20 54%

Stormwater consortium meetings 3 12 300%

Cleanup volunteers participating 2,685 3,338 24%

Pounds of trash removed 66,143 116,859 77%

Erosion control inspectors certified 276 596 116%

Rain barrels made or sold 106 408 285%

Festivals attended 6 15 150%

Rain gardens installed 1 6 500%

55

Annual Reporting

Four reports submitted so far for reissued permit before deadlines

Developed process for stakeholder involvement, accountability, and commitment

Numerous success stories to tell…

56

#11 Richland County’s Stormwater Sampling & Monitoring Program

Wet Weather Monitoring – 13 Stations

First Flush

Distributed sample

Ambient Water Quality Monitoring for Impaired water bodies – 23 Stations

In-situ parameters

Lab testing parameters

Sediment Monitoring – 25 Stations

Sediment Testing

Heavy Metals

Benthic Monitoring – 35 Stations

Macro-invertebrates

Dry Weather Screening for Water Quality Assessments

Odor, scum, sheen, color

Indicator compounds: Cl, N, Cu, Detergents, Phenols, pH, temp etc.

Illicit Discharges

Dissolved Oxygen Monitoring

Road Runoff Monitoring

More Details can be found http://richlandonline.com/departments/publicworks/NPDES_MS4.asp57

Agenda








58

Stormwater Sampling & Monitoring Program Comprehensive program in-place since 2005

Majority of program is being implemented in-house for long term best interests

Analysis of samples is being performed in SCDHEC certified labs

Wide range of sampling & monitoring Wet Weather

Ambient

Sediment

Macroinvertebrate

Dissolved Oxygen

Miscellaneous

59

Quick Numbers for RC

22 Impairment locations on 303 (d) list

10 Locations with approved TMDLs

03 Road runoff sampling stations - Monitored annually

04 Dissolved Oxygen intermittent monitoring stations -Monitored Monthly

19 Sampling stations in Gills Creek Watershed

17 Sampling stations in Crane Creek Watershed

60

Watershed Approach 3 Major Watersheds Units301, 502, 202 &Sub-watersheds

Online Mapping61

Wet Weather Monitoring Started in 2005

Automated runoff event

Data collection protocols in-place

Event Mean Concentrations and Annual Pollutant Loadings

Prioritized Pollutants

Monitoring the levels

14 - Pollutants currently being tested

BOD, COD, TSS, TDS, N, P, Cu, Zn, Oil & Grease etc…

88 samples collected so far…

Ongoing Management Plan and Outreach

62

63

Ambient Monitoring Started in 2008

Composite Grabs

Quarterly monitoring

At least one station on each Impaired water

body

Identified stations away from SCDHEC stations



18 - Pollutants and 2 physical parameters

currently being tested

Turbidity, N, P, TSS, Oil & Grease etc…


Ongoing Programs and Outreach

64

Sediment Monitoring Started in 2008

Annual monitoring

Collects sediment grab samples in water bodies and test



9 - Pollutants and 2 physical parameters currently tested

Hg, Cd, N, Metals, As, etc…


Ongoing Programs and Outreach

65

Macro invertebrate Monitoring Started in 2008

Outsourced to a taxonomist

35 stations all over county

Tested for 10 parameters

Takes into account species abundance, diversity and pollution tolerance

3 years of data available

Rated on scale with two referral points SCDHEC & NCBI

8 stations on Gills Creek

66

Dissolved Oxygen Monitoring 5 monitoring stations that

takes continuous readings

Monitors monthly for 3 continuous days

Sondes used

Two stations are on Gills Creek

67

Other Sampling & Monitoring Road way runoff samples

Dry weather sampling and

monitoring

Illicit Discharge and

Improper Disposal

sampling

Sampling to analyze

pesticide, herbicide and

fertilizers

Jurisdictional sampling

68

Monitoring Program Goals

Identify water quality problem areas

Determine key pollutants

Demonstrate water quality improvements

303(d) listings

TMDL waste load allocation compliance

Monitoring Summary

Ambient and Wet Weather monitoring within 22 sub-watersheds in the County:

Concentrated in impaired watersheds of Crane Creek (5) and Gills Creek (6)

County monitoring in alignment to 16 DHEC monitoring stations

County monitoring 8 stations with no DHEC station in proximity

Data consistency

Data collection and analysis began in 2005

Sampling Summary – Wet Weather

Started in 2005

Minimum of one sample per year

Focus on urbanized areas

Prioritized urban pollutants

Twelve (12) permanent monitoring stations and one (1) random station

14 Pollutants currently being sampled:

BOD5, COD, TSS, TDS, TKN, Oil & Grease, Zn, Dissolved Phosphorus, Total Phosphorus, Cu, Pb, Cd, FC

Analysis– Wet Weather

Analyzed using two major techniques:

Total event load basis

Event mean concentration (EMC) distribution

Environmental factors

Land use

Development concentrations

Time of year collection

Total Event Load Evaluation

Evaluate quantitative concentration changes over time

Goal to develop list of five (5) priority pollutants for the County to focus structural and non-structural BMP types and locations

Analysis Concerns

Storm duration

Storm intensity

Storm recurrence distribution

Compared to baseline to determine trends

Event Load Results 2009-2010 Reporting Year

Rank of Top 5 Pollutants

Parameter Overall County WMU 202 WMU 301 WMU 502

Biochemical Oxygen Demand (BOD5) (mg/L) 5 5 5

Chemical Oxygen Demand (COD) (mg/L) 2 3 2 2

Total Suspended Solids (TSS) (mg/L) 4 2 4 4

Total Dissolved Solids (TDS) (mg/L) 3 4 3 3

Oil & Grease (mg/L) 5

Fecal Coliform (FC) (#/100mL) 1 1 1 1

Event Mean Concentration (EMC)

Evaluated each outfall for land use and development (impervious cover) concentration

Performed theoretical loading rates utilizing accepted standards BMP Manual Nationwide Urban Runoff Program (NURP)

Developed average loading rates per major watershed Compared loading rate on a percentage basis for each

pollutant Each monitoring year to baseline (2005-2006) Each monitoring year to NURP and BMP Manual theoretical

loadings

EMC Results 2009-2010 Reporting Year

WMU 202 BASELINE 2009-10 MONITORING

Parameter

% Cumulative

Difference

(BMP)

% Cumulative

Difference

(NURP)

% Cumulative

Difference (BMP)

% Cumulative

Difference

(NURP)

Biochemical Oxygen Demand (BOD5) (mg/L) 31% -48% -100% -100%

Chemical Oxygen Demand (COD) (mg/L) 81% -41% -91% -97%

Total Suspended Solids (TSS) (mg/L) -67% -91% -64% -90%

Total Dissolved Solids (TDS) (mg/L) 17% --- -27% ---

Fecal Coliform (FC) (#/100mL) --- --- --- ---

Average Difference in Allowable Loading Rates and

Measured Values (%)-26% -49% -70% -86%

WMU includes – Gills Creek, Smith Branch, Tom’s Creek, Cedar Creek



Parameter

% Cumulative

Difference

(BMP)

% Cumulative

Difference

(NURP)

% Cumulative

Difference (BMP)

% Cumulative

Difference

(NURP)

Biochemical Oxygen Demand (BOD5) (mg/L) 270% 0% -35% -81%

Chemical Oxygen Demand (COD) (mg/L) 127% -50% 91% -55%

Total Suspended Solids (TSS) (mg/L) 7% -80% 205% -38%




Measured Values (%)45% -49% 39% -63%

WMU includes – Spears Creek, Colonel’s Creek, Twenty-Five Mile Creek



Parameter

% Cumulative

Difference

(BMP)

% Cumulative

Difference

(NURP)

% Cumulative

Difference (BMP)

% Cumulative

Difference

(NURP)

Biochemical Oxygen Demand (BOD5) (mg/L) 43% -36% -93% -97%

Chemical Oxygen Demand (COD) (mg/L) 85% -32% -2% -64%

Total Suspended Solids (TSS) (mg/L) -53% -84% -72% -91%




Measured Values (%)-26% -57% -56% -78%

WMU includes – Crane Creek, Hollingshed Creek, Nicholas Creek

Sampling Summary – Ambient

Started in 2008

Quarterly monitoring

At least one station on each Impaired water body

Prioritized pollutants

18 Pollutants and 2 physical parameters currently being monitored:

Conductivity, DO, FC, Strep, NH4, Oil and Grease, P, pH, TKN, Cl, TSS, K, Surfactants, Nitrate, N+N, Fluorides, Turbidity, Chlorophyll, Depth, Temp

Analysis - Ambient

Ambient monitoring initially focused on identifying event loading rates to rank pollutants

Evaluated an overall concentration of pollutant loading

Developed rank of “Top 5” Pollutants: Total Fecal Streptococcus (FS)

Total Fecal Coliform (FC)

Total Suspended Solids (TSS)

Total Dissolved Oxygen (DO)

Total Potassium (K) / Oil and Grease (OG)

0

50

100

150

200

250

300

350

400

450

500

Cla

rkso

n R

d

Co

ng

ress

Rd

Fo

rest

Lak

e P

lace

Gar

ner

s F

erry

Rd

@ C

edar

C

reek

Gar

ner

s F

erry

Rd

@ R

eed

er P

t B

r

Gil

ls C

ross

ing

Rd

Old

Eas

tove

r R

d

Old

Gar

ner

s F

erry

Rd

Old

Lee

sbu

rg R

d

Per

civa

l R

d

Pin

evie

w R

d

Ro

sew

oo

d D

r

Zei

gle

r R

d

Gar

ner

s F

erry

Rd

@ W

ater

ee

Riv

er

Hid

den

Val

ley

Rd

Inte

rnat

ion

al P

aper

SC

E&

G

Ced

ar C

reek

Rd

Cle

men

t R

d

Cle

mso

n R

d

Fai

rfie

ld R

d

Far

row

Rd

Wil

dfl

ow

er R

d

Co

lifo

rm (

#/1

00

mL

)

Sampling Station

Fecal Coliform Per Monitoring Site(note: values above 500 #/100mL truncated for comparison purposes)

2008 Q3

2008 Q4

2009 Q1

2009 Q2

2009 Q3

2009 Q4

2010 Q1

2010 Q2

DHEC STD

Only 11% exceeded DHEC

standards

0

2

4

6

8

10

12

14

16

18

Cla

rkso

n R

d

Co

ng

ress

Rd

Fo

rest

Lak

e P

lace

Gar

ner

s F

erry

Rd

@ C

edar

Cre

ek

Gar

ner

s F

erry

Rd

@ R

eed

er P

t B

r

Gil

ls C

ross

ing

Rd

Old

Eas

tove

r R

d

Old

Gar

ner

s F

erry

Rd

Old

Lee

sbu

rg R

d

Per

civa

l R

d

Pin

evie

w R

d

Ro

sew

oo

d D

r

Zei

gle

r R

d

Gar

ner

s F

erry

Rd

@ W

ater

ee R

iver

Hid

den

Val

ley

Rd

Inte

rnat

ion

al P

aper

SC

E&

G

Ced

ar C

reek

Rd

Cle

men

t R

d

Cle

mso

n R

d

Fai

rfie

ld R

d

Far

row

Rd

Wil

dfl

ow

er R

d

Co

nce

ntr

ati

on

(m

g/L

)

Sampling Station

Dissolved Oxygen Per Monitoring Site

2008 Q3

2008 Q4

2009 Q1

2009 Q2

2009 Q3

2009 Q4

2010 Q1

2010 Q2

DHEC STD

Only 12% below DHEC

standards

Sediment Monitoring Summary

Program to date:

Limited data available

Long term sampling and monitoring will provide trends

Statistically significant results are yet to be seen

Residual sediments do not necessarily fluctuate consistently with changes in water quality – reduce monitoring requirements for the County

Benthic Monitoring Summary

Program to date:

Limited data available

Long term sampling and monitoring will provide clearer trends

Benthic communities do not readily adapt to changes solely based on water quality. Improvements can take years, even decades – reduction in monitoring frequency

DO Monitoring Summary

5 monitoring stations that takes continuous readings (3 day 24-hr per month): Bear Creek Crane Creek Gills Creek Wateree River Windsor Lake

Variable data with Windsor Lake exhibiting the most frequent low DO readings

Only 2 years of data to date Alternate monitoring strategy to monitor in proximity to

ambient and wet weather stations showing consistent DO impairment - TMDL

Overall Program Results

Initial baseline sampling reduced sampling set from 100+ pollutants to less that 20 for each ambient and wet weather

Sample pollutant reductions (fecal coliform)

Wet weather:

Reduction in “spikes”

Reduced overall County average (~ 60% in 4 years)

Ambient:

Below 200 #/100mL for 86% of all samples:

11 of 23 stations (2008-2011)

13 of 23 stations (2010-2011)

Below 400 #/100mL for 15 of 23 stations (2008-2011) – 92.5% total

Type of Sampling & Monitoring

Number of Stations

Number of Pollutants Monitored

Number of years of Data Available

Year of Baseline Data

Gills Creek Water Quality Percentage Improvement w.r.t Base line data

Crane Creek Water Quality Percentage Improvement w.r.t Base line data

County-wide Water Quality Percentage Improvement w.r.t Base line data

Wet Weather 13 14 5 2005 32% 25% 33%

Ambient 23 16 2 2008 48% 60% 55%

Sediment 25 9 2 2008 21% 25% 19%

Macro invertebrates

10 10 2 2008 38% 0% 15%

Gross Positive Change in Water Quality in Richland County

County-wide Results (gross)


Number of Stations







Wet Weather 13 14 5 2005 -1% -15% 2%

Ambient 23 16 2 2008 21% 45% 35%

Sediment 25 9 2 2008 11% 6% 10%

Macro invertebrates

35 NA 2 2008 0% 0% 4%

Net Positive Change in Water Quality in Richland County

County-wide Results (net)

Moving Forward

Program Next Steps…

Target Pollutants 2011-2016

Evaluated all WQ samples with respect to DHEC standards and assessed frequency of exceedance:

Residual Chlorine

Total Phosphorus

Dissolved Oxygen

Fecal Coliform

Recoverable Copper

Target Pollutants 2011-2016 Overall program direction regarding monitoring will

be a combined effort of event mean loading and exceedance parameters, with a focus on pollutants that are on all ranking lists (as well as TMDL):

Primary Pollutants:

Dissolved Oxygen

Fecal Coliform

Phosphorus

Secondary Pollutants:

Total Suspended Solids

Oil and Grease/Surfactants

Pollutant Data Comparison Comparison of County data and DHEC data:

Fecal Coliform ( 200 #/100mL and 400 #/100mL)

Historic Present

DHEC (Pre 2005) DHEC (2005-2008) DHEC (2008-present) County (2008-present)

Number of Sample 5587 1022 328 241

Samples Exceeding Standard 1886 / 1214 270 / 144 62 / 36 32 / 14

% Exceeding Standard 33.8% / 21.7% 26.4% / 14.1% 18.9% / 11.0% 13.3% / 5.8%

Overall Average (#/100mL) 1276 235 245.7 106

Dissolved Oxygen ( 5.0 mg/L)

Historic Present


Number of Sample 8612 497 133 241

Samples Exceeding Standard 1001 21 9 25

% Exceeding Standard 11.6% 4.2% 6.8% 10.4%

Overall Average (mg/L) 7.85 7.93 8.04 7.38

Phosphorus (0.06 mg/L)

Historic Present


Number of Sample 2693 241

Samples Exceeding Standard 1130 NO NO 117

% Exceeding Standard 42.0% DATA DATA 48.5%

Overall Average (mg/L) 0.09 0.07

2011-2016 Strategies Identify target pollutants Develop BMP implementation strategy (Year 1)

Education Structural Watersheds (TMDL waste load allocations)

Fecal coliform – 7 TMDL Dissolved Oxygen – 1 TMDL Biological – 2 TMDL in development

Assess monitoring locations annually as implementation plan progresses

Continue to assess pollutant loads on an annual basis Modify plan as necessary to meet water quality goals and

permit compliance

Future Sampling Strategies Wet Weather

Move rural road station to Rawls Creek (BIO TMDL in development, FC existing) Eliminate monitoring for: Cadmium

Ambient Eliminate stations:

Garner’s Ferry Rd @ Wateree River (at DHEC station) Garner’s Ferry Rd @ Cedar Creek (location and attainment) or Old Leesburg Rd (no

pollutant issues and DS stations)

Eliminate monitoring for: Potassium and Flouride

Sediment Decrease monitoring frequency

Benthic Decrease monitoring frequency

Dissolved Oxygen Eliminate permanent stations and relocate to variable placement based on annual

assessment of impairments

Rural Road Runoff Eliminate requirement – no changes from other sampling program results

Agenda







Few of 2005-2010 Success Stories

95


Water Quality Improvements

County-wide stations show positive improvements up to gross 55% and net 31% with respect to established base line data.

96


Number of Stations







Wet Weather 13 14 5 2005 32% 25% 33%

Ambient 23 16 2 2008 48% 60% 55%

Sediment 25 9 2 2008 21% 25% 19%

Macro invertebrates

10 10 2 2008 38% 0% 15%

Gross Positive Change in Water Quality in Richland County

County-wide Results (Gross)


Number of Stations







Wet Weather 13 14 5 2005 -1% -15% 2%

Ambient 23 16 2 2008 21% 45% 35%

Sediment 25 9 2 2008 11% 6% 10%

Macro invertebrates

35 NA 2 2008 0% 0% 4%

Net Positive Change in Water Quality in Richland County

County-wide Results (Net)

2005-2010 Success Stories Lake Elizabeth Projects

Lower Broad TMDL for Fecal Coliform

Met TMDL water quality standard in 2008 303(d) list

Station

ID

Monitoring Year

1998 2000 2002 2004 2006 2008 2010

B-081 BIO BIO BIO BIO BIO BIO BIO

B-110 FC FC* FC*

Fully

Supporting

FC*

Fully

Supporting

B-316 FC,

CU,

ZN

FC,

CU,

ZN

FC FC BIO

FC*

DO,

FC*

Not

Supporting

DO,

FC*

Not

Supporting,

*FC TMDL developed 2006 99


DHEC 303(d) delistings (standard attained)

2008:

Windsor Lake (pH)

Forest Lake (FC)

Reeder Point Branch (DO)

Congaree River (CU)

2010:

Bear Creek (DO)

100


State of the art sampling & monitoring program established and being implemented

Dash board tool

101


Gills Creek Watershed Efforts

102

Gills Creek

Collaborative Watershed Approach to address water quality in the region

For more details: www.gillscreekwatershed.com

103

http://www.gillscreekwatershed.com/


Crane Creek Watershed Efforts

Collaborative approach to

address water quality in the region

104


Stormwater Consortium Education

Efforts

More details at:http://www.clemson.edu/public/carolinaclear/consortiums/richland_home/index.html

105

http://www.clemson.edu/public/carolinaclear/consortiums/richland_home/index.html



Developed and Implemented

Infrastructure Inspection and Maintenance Program

Roadway Runoff Management Program

Pesticide, Herbicide and Fertilizer Control Program

Industrial and High-risk facilities Pollution Control Program

SWPPPs & SPCCs for Municipal Operations


Established Standard Operating Procedures and Enforcement Escalation Procedures

Improved Documentation for MS4 Programs

Periodic Assessment and Evaluation of MS4 programs Conducted

Organization Development and Co-ordination with Numerous Stake Holders

Short-term and Long-term Goals Established for Programmatic Elements


Richland County Stormwater Management

“By the Numbers …”


Stormwater Capital Improvement Project Program

109


Path Forward Continue sampling and

monitoring

Make changes to the programs and expand as needed

Continue stormwater programs and initiatives

Work towards goal of clean water and better quality of life

110

Acknowledgements Stormwater Team for their in-valuable contributions

Management Team and Stakeholders

BP Barber our 0n-record NPDES Consultant

Our other Consultants who helped developing programs

111

Questions?

112