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Reducing nonpoint source pollution in the State of Oklahoma through planning, implementation, education, and monitoring. Oklahoma Conservation Commission Oklahoma Conservation Commission Water Quality Division Water Quality Division Responsible Care for Oklahoma’s Natural Resources Stillwater Creek Stillwater Creek Watershed Implementation Project Watershed Implementation Project The Stillwater Creek Watershed Implementation Project involved the collaboration of numerous government agencies, Oklahoma State University (OSU), and local landowners. Sediment and turbidity, attributed to agricultural activities, roadside erosion, and urban runoff, were the major nonpoint source (NPS) concerns for this 276 square mile watershed. Education, demonstration, and installation of best management practices (BMPs) were conducted to initiate a longterm, watershed scale effort to reduce NPS loading to Stillwater Creek and Lake Carl Blackwell. Background: Background: Background: The City of Stillwater and the OSU campus have and continue to experience rapid growth, with construction of many new homes, apartment buildings, and dormitories. Several streams in the Stillwater Creek watershed, as well as Lake Carl Blackwell, were officially listed as impaired for siltation and suspended solids in 1998. Pesticides and nutrients were also listed as impairing the water. Potential sources of pollution were identified, including unimproved county roads, poor agricultural practices, oil and gas activities, and urban issues such as construction activities and overuse of fertilizers. The Oklahoma Conservation Commission (OCC) began a collaborative project in 2001 to reduce NPS pollution in the watershed. Project Planning: Project Planning: Project Planning: Objective: To initiate a longterm watershed scale effort to decrease NPS loading and reduce and eventually eliminate impairments and threats to Stillwater Creek and Lake Carl Blackwell. Funded through an EPA Clean Water Act, Section 319 grant with matching funds from the state and participating landowners. Project funding totaled $1,066,667. Partnered with the Payne and Noble County Conservation Districts, the Natural Resources Conservation Service (NRCS), OSU, the Oklahoma Cooperative Extension Service (OCES), the Oklahoma Water Resources Board (OWRB), and others to implement the various project programs. Locallyled effort: Hired a local project coordinator to work with the individual landowners to develop conservation plans and agreements to participate in the program. Based practices and costshare rates on the advice of a “watershed advisory group” comprised of local producers, city officials, OSU faculty, and NRCS staff. Practices were targeted towards the most significant sources of sediment based on computer modeling by OSU. The model suggested that as much as 75% of the sediment load came from 8% of the basin (mostly areas of small grain and row crop production). Priority BMP categories included: (1) riparian establishment and management, (2) erosion control, (3) pasture and cropland management, and (4) waste management. OCC contracted with the OWRB to develop a shoreline stabilization project for the lake and with OSU to develop a rural road erosion control project to fully address the major concerns in the watershed. Lake Carl Blackwell S ti ll wat er Cre e k McMurtry Carl Blackwell Payne Co. Noble Co. Logan Co. N E W S Stillwater Creek Watershed

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Page 1: OOkkllaahhoommaa CCoonnsseerrvvaattiioonn

Reducing nonpoint source pollution in the State of Oklahoma through planning, implementation, education, and monitoring. 

Oklahoma  Conserva t ion  Commis s i on Oklahoma  Conserva t ion  Commis s i on Wat er  Qua l i t y  D iv i s ion Wat er  Qua l i t y  D iv i s ion 

Responsible Care for Oklahoma’s Natural Resources 

Stillwater Creek Stillwater Creek Watershed Implementation Project Watershed Implementation Project 

The  Stillwater  Creek  Watershed  Implementation  Project  involved  the  collaboration  of  numerous  government agencies,  Oklahoma  State  University  (OSU),  and  local  landowners.    Sediment  and  turbidity,  attributed  to agricultural activities, roadside erosion, and urban runoff, were the major nonpoint source (NPS) concerns for this 276 square mile watershed.  Education, demonstration, and installation of best management practices (BMPs) were conducted to initiate a long­term, watershed scale effort  to reduce NPS loading to Stillwater Creek and Lake Carl Blackwell. 

Background: Background: Background: • The  City  of  Stillwater  and  the  OSU  campus  have  and continue  to experience  rapid  growth, with construction of many new homes, apartment buildings, and dormitories.

• Several streams in the Stillwater Creek watershed, as well as Lake Carl Blackwell, were officially listed as impaired  for siltation  and  suspended  solids  in  1998.  Pesticides  and nutrients were also listed as impairing the water.

• Potential  sources  of  pollution  were  identified,  including unimproved  county  roads,  poor  agricultural  practices,  oil  and  gas activities,  and  urban  issues  such  as  construction  activities  and overuse of fertilizers.

• The  Oklahoma  Conservation  Commission  (OCC)  began  a collaborative  project  in  2001  to  reduce  NPS  pollution  in  the watershed. 

Project Planning: Project Planning: Project Planning: Objective:  To  initiate a  long­term watershed scale effort  to decrease 

NPS loading and reduce and eventually eliminate impairments and threats to Stillwater Creek and Lake Carl Blackwell. 

Funded  through an EPA Clean Water Act, Section 319 grant with matching  funds  from  the state and participating landowners.  Project funding totaled $1,066,667. 

Partnered  with  the  Payne  and  Noble  County  Conservation  Districts,  the  Natural  Resources  Conservation  Service (NRCS),  OSU,  the  Oklahoma  Cooperative  Extension  Service  (OCES),  the  Oklahoma  Water  Resources  Board (OWRB), and others to implement the various project programs. 

Locally­led effort:  Hired a local project coordinator to work with the individual landowners to develop conservation plans  and  agreements  to  participate  in  the  program.  Based  practices  and  cost­share  rates  on  the  advice  of  a “watershed advisory group” comprised of local producers, city officials, OSU faculty, and NRCS staff. 

Practices were targeted  towards the most significant sources of sediment based on computer modeling by OSU.  The model suggested that as much as 75% of the sediment load came from 8% of the basin (mostly areas of small grain and  row crop  production).    Priority BMP  categories  included:    (1)  riparian  establishment  and management,  (2) erosion control, (3) pasture and cropland management, and (4) waste management. 

OCC  contracted  with  the  OWRB  to  develop  a  shoreline  stabilization  project  for  the  lake  and  with OSU  to develop a rural road erosion control project to fully address the major concerns in the watershed. 

Lake Carl Blackwell 

Stillwater Creek 

McM

urtry 

Carl Blackwell 

Payne C

o. 

Noble Co. 

Logan Co. 

E W 

OS A GE  

T E X A S  

K A  Y  

E L L IS 

B E A V E R 

CA D D  O 

CIM  A  RR O  N 

L  E   F L  O  RE  

W O  OD S  

MC C  UR T A I  N 

GR A D  Y  

K IOWA  

A T OK A  

GR A N  T  

CR E E K  

B RY A N 

MA J OR  

D E W  E Y  B L A  IN  E  

HA RP E   R 

CU  S T E   R 

P ITT S   B U RG  

CR A I  G 

L  I  NC   O L N 

NO B  L E  

WA  S   HIT   A  

L  O  GA N 

GA RV   IN 

GA RF I  E L D 

T ILL M  A N 

P A Y NE  

P  US HM   A T A H  A  

A L F A L F A  

CA RT E   R 

L  O  V E  

MA Y E S  

WO  OD W  A  R  D 

CO A L  

HU GH   E  S  

A DA IR 

CO M  A NC H  E  

B E CK H  A M 

T UL S A  

GR E E R 

CA NA DIA N 

J  A CK S O  N 

L  A T IM  E R 

RO G  E R  MIL L  S  

S  T E P HE   NS  

RO G  E RS  

CH O C  T A W 

CO T T ON  

K IN G  F IS  HE R 

MU S K   OG E   E  

DE L A W  A RE  

HA S K E   L  L  

C HE R  OK E E  

P  A W  NE E  

MC I  NT OS   H 

J  E F F E RS O  N 

NO W  A T A  

MC C  L A IN 

P ON T O  T OC  

OK L A H  OM A  

S  E QU   OY A H 

S E MI  N OL E  

OK M  UL GE E  

HA RM   ON  

J  O  HN S   T ON  

OK F US   K E E  

OT T A W  A  

WA  G  ON   E R 

MU R  RA  Y  

P OT T A  W  A T O  MI  E  

CL E V E L A ND  

MA RS   HA L L  

W ASHIN 

GT

Stillwater Creek Watershed

Page 2: OOkkllaahhoommaa CCoonnsseerrvvaattiioonn

Project Implementation: Project Implementation: Project Implementation: 53 cooperators participated in the project, installing a total of $447,840 in agricultural BMPs on a cost­share basis.  Funding by source: 

$135,538 from State funds $146,337 from Federal 319 funds $165,965 from landowners (37%) 

Best Management Practices (BMPs) included: ♦ 14,840 linear feet of fencing to establish riparian buffers ♦ 21,011 linear feet of cross­fencing to improve pastures ♦ 26 ponds and 13 water tanks for alternative water supplies ♦ 390 acres of vegetative planting for erosion control and pasture improvement ♦ 13 grade stabilization structures ♦ 2 grassed waterways ♦ 1 feeding facility and 3 heavy use areas ♦ 20 septic system installations and 2 system upgrades 

OWRB installed several breakwaters in the lake and monitored their effectiveness in reducing  shoreline erosion.   Also, OSU staff who work on  the  lake were educated about methods to decrease erosion and improve the lake’s water quality. 

OSU  assessed  sediment  loss  from  unpaved  rural  roads,  demonstrated  BMPs  to reduce erosion and sediment yield, measured erosion from road segments with and without BMPs, and educated county road crews, county commissioners, city road crews,  and  the  general  public  about  controlling  erosion  and  sedimentation  from unpaved roads. 

OCES facilitated numerous educational events,  including a sediment control class for City of Stillwater personnel and developers which addressed urban storm water and sediment control on construction sites.  Pesticide and fertilizer education programs were conducted to educate the community about proper household, lawn, and garden use of fertilizer and chemicals. 

Project Monitoring and Results: Project Monitoring and Results: Project Monitoring and Results: ♦ Data  collected  from  2000­2006  at  three OCC  sites  on  Stillwater  Creek were  assessed.  Significant  decreasing 

trends were evident in both total suspended solids and turbidity at one of the three sites.  These improvements are expected  to continue and expand as effects of practices which were  implemented near  the end of  the project take hold.

♦ Educational  efforts  should  be  long­lasting  and  wide­reaching,  and  vital  partnerships  between  groups which were formed as a result of this project are expected to strengthen.

♦ The lake and several watershed streams remain on the 303(d) list for NPS related impairments, so additional work is likely needed in the watershed to fully address the problems.

♦ The NRCS has  established  a  “Local Emphasis Area”  consisting  of  all  land  that  drains  into Stillwater Creek  and Lake  Carl  Blackwell.  Funding  will  be  provided  for  sediment  and  erosion  control  measures,  with  special consideration given to establishing permanent vegetation on cropland, adopting conservation tillage practices, and the development and protection of conservation buffers.  The NRCS will continue to focus available EQIP funding in the watershed through this project, which should result in further water quality improvements.

♦ The OCC will  continue  to monitor  streams  in  the watershed  as  part  of  its  statewide Rotating Basin Monitoring Program, and results will be reported in the State’s biannual “Integrated Water Quality Assessment Report.” 

Oklahoma’s Nonpoint Source Management Program at Work 

For additional information, contact: For additional information, contact: Shanon Phillips, Acting Director Shanon Phillips, Acting Director Water Quality Division Water Quality Division (405) 522 (405) 522­ ­4500 4500 

Visit our website at: www.conservation.ok.gov www.conservation.ok.gov 

Grade stabilization structure Riparian fencing 

Erosion control on unpaved roads