Monday, November 23, 2009

manure solution?

Folks in Ojai have been researching potential solutions to the manure problem.

One big idea is creating marketable products from the waste, and in the process make a big step toward local sustainability. In this case, a BioDigester that would process collected manure and green waste into bioGas for use in vehicles or electricity generation. And the remaining solid waste would provide seed-free nutrients for local agriculture, further offsetting the use of petroleum-based fertilizers in the valley.

The Bio-digestion Plant would provide the following benefits:

  • Local option for disposal
  • Methane is used directly for energy
  • Compost is sterilized
  • Nutrients concentrated in liquid fertilizer
  • Nutrients removed from stormwater runoff
  • Greenhouse gases reduced (less methane released to the air)
  • Less truck traffic/ transportation to disposal sites
  • Reduced demand for fossil fuel energy
  • Reduced demand on landfills
  • Creates local jobs
  • Creates educational example for energy independence and use of local resources
This is not a cheap project, but a local bioGas generation plant could solve multiple social and economic problems - the 'triple bottom line' of "people, planet, profit"

A UC Davis program has demonstrated the feasibility of the technology in partnership with Onsite Power Systems

more here:




Seems like a big opportunity for a smart investor... Others in Ventura County are already doing this, and winning awards while making money in the process: http://www.vcstar.com/news/2009/nov/18/toland-road-landfill-making-money-and-energy/

For more information on the Ojai project please contact Bill O'Brien/Phil Sherman 805-658-6611

the manure problem

Horses are a way of life in the Ojai Valley, but the waste they generate has long been recognized as a potential water quality problem. The issue is nutrient-rich manure that is often disposed of adjacent to or sometimes in the creeks throughout the watershed. This elevates nitrogen levels in the water, which leads to excess algae. See previous blog post here.

A preliminary survey was recently conducted to evaluate the scale of the problem. The results were submitted in a memo to the Regional Water Quality Control Board who are currently considering regulatory approaches for the Algae TMDL.

According to the memo, the study was based on information from horse owners, site visits to the main horse locations, and well known horse locations. Based on this survey, there were 62 horses counted within the City limits of Ojai. And valleywide, excluding the upper Ojai Valley, the numbers shown on this map total 792 horses.
The memo further states:

It is believed that considerably more horses could be located with a more detailed survey. A more detailed survey would take many field trips and review of aerial photography. The detailed survey should yield at least twice the number horses shown in this preliminary survey. Many of the horses that are not yet counted will likely be on locations with 1-5 horses. Funding for a detailed survey has yet to be obtained.
At this time, the best estimate for total horses in the Ojai Valley (excluding the upper Ojai Valley) is 2000-3000 horses. If each horse has 30 lbs/day of solid waste*, that equates to 30-45 tons/day of horse manure.

*A 1,000 lb horse produces about 31 lbs of feces and 2.4 gallons of urine daily, which totals 51 lbs of waste per day. Pennsylvania State College of Agriculture Sciences study “Horse Stable Manure Management”

Ventura River Watershed Protection Project


Ventura River Watershed Protection Project (V1)

This is a $2.1 million project that includes several components:
  • Formation of a Watershed Council, drawn from diverse local stakeholders, to address resource issues facing the watershed and to act as the decision-making body for plan development and project implementation;
  • Compilation of published materials related to the watershed in order to form a single database and to identify gaps in information;
  • Development of a watershed characterization baseline planning document utilizing already existing studies and initiating specific new studies as needed to give a picture of the watershed and its needs;
  • Identification of problem areas within the watershed with preliminary suggestions on how to best address them;
  • Development of an action plan to set priorities for implementation of project solutions for identified problems; and
  • Development of mechanisms to keep the public aware of the progress and implementation of the protection plan.
One of the primary efforts is the Ventura River HSPF Modeling Project. This is a computer model under development by Tetra Tech consultants. According to reports, 'The Ventura County Watershed Protection District has contracted with Tetra Tech to develop a hydrologic model for the Ventura River watershed, using EPA’s Hydrologic Simulation Program – FORTRAN (HSPF) model. The work, funded under a Proposition 50 grant, will result in the completion of a Baseline (existing condition) hydrologic model as well as a Natural Condition scenario. These model runs can be used to support a variety of water availability and storm flow analyses. In addition, the hydrologic model will provide a platform for future modeling of water quality constituents in the Ventura River.'

More info and documents are available here

BACKGROUND: In November 2002, California voters approved Proposition 50. This legislation provides $500 million in water-related grants. In 2008, the Watersheds Coalition of Ventura County was awarded a $25 million grant. More info: Prop 50 Implementation Grant

San Antonio Creek Spreading Grounds



San Antonio Creek Spreading Grounds Rehabilitation Project (V-2)

BACKGROUND
The 'spreading grounds' historically existed to recharge groundwater in the Ojai basin using water delivered through the Matilija Conduit from Matilija reservoir. This was the primary intent of Matilija Dam when constructed in 1948, but the practice was discontinued with the construction of Casitas reservoir in 1956.

PROJECT DESCRIPTION
This project would rehabilitate the historic spreading grounds to enhance groundwater recharge using water diverted from upper San Antonio Creek below Senior Canyon. The project includes construction of recharge wells, as well as a monitoring well.

PROJECT GOALS
• Diversion of a portion of the precipitation that is typically lost from within the San Antonio Creek Sub-Watershed to the rehabbed spreading grounds using project facilities.
• Increase the groundwater recharge and storage in the Ojai Valley Groundwater Basin (OVGB), thereby enhancing the reliability of production from local water supply wells.
• Reduce local reliance on already-limited surface water supplies from the Casitas Municipal Water District (CMWD.)




A stakeholder group inclusive of the Ojai Basin Groundwater Management Agency, the Ojai Water Conservation District, the Golden State Water Company, the Casitas Municipal Water District, and the Ventura County Watershed Protection District is working cooperatively to complete this groundwater recharge and supply project.



The $1.4 Million project is funded by the combination of a $1.3 Million Prop 50 Implementation Grant from the State of California and approximately $100,000 in local match contributions from the five stakeholders.

Watersheds Coalition website

Wednesday, November 18, 2009

Ventura OK's development plan

Despite the many red flags, Ventura City Council unanimously voted on Monday night to approve the Saticoy-Wells Community Plan EIR. This issue was delayed when water managers objected: city-plans-threaten-aquifers

1: Concerns with water supply were justified by a 'tolling agreement' between the City and Fox Canyon Groundwater Management Agency and United Water Conservation District. The tolling agreement would postone any legal action against the city until July 1, 2010, giving time to test the well in question to determine if it would in fact affect groundwater supplies as the water agencies suggest.

2: Flooding concerns were answered in a last-minute e-mail from Ventura County Watershed Protection District.

3. As highlighted by Councilmember Morehouse, this plan was completed after 3 major developments in the planning area have already been approved.



The figures shown here were submitted as comments on the EIR from the East Ventura Community Council. They illustrate the variability in the City's water supply, and vulnerability to drought. Note that the Ventura River/Casitas supply makes up a significant portion.

The City's water supply as outlined in the General Plan and used in this EIR is based upon wet years. A drought as short as 3 years may limit supply to as little as 60% of normal. This is what adjacent water managers mean when they write that, "We believe as described above the City's assumptions and estimates for future water supplies may be over estimated."

And as predictably as the City outgrows its water supply, our rivers will surely get drier.




City Council meeting agenda, minutes, and video for Nov 16, 2009 are online here.

Tuesday, November 10, 2009

SA Creek Bridge



OJAI VALLEY TRAIL BRIDGE AT SAN ANTONIO CREEK

Ventura County Parks Department is planning to construct a bridge at the confluence of San Antonio Creek and the Ventura River. Funding would come from state and federal salmonid restoration grants.

This project will enhance the bike trail as well as improve fish passage up San Antonio Creek.


The project consists of the replacement of the Ojai Valley Trail culvert crossing with a bridge at
San Antonio Creek, including removal of the existing culverts and associated fill, construction of the bridge and site restoration. Based on conceptual plans developed to date, the bridge would have an overall length of 790 feet, including approach ramps. The bridge span would be approximately 510 feet. The bridge deck elevation would be at about 323 feet, about 10 to 12 feet higher than the existing trail surface elevation. The bridge would be designed to support pedestrians and bicycles, and occasional light-weight patrol vehicles (golf cart-sized). The bridge approach ramp grade would be 5 percent or less to meet Americans with Disabilities Act requirements.


This diagram was included in our comment letter, suggesting that moving the bridge a short distance up SA Creek (yellow line) would allow for a shorter bridge and eliminate future impacts at the bend in the river. We also wrote that biologists documented significant numbers of fish in the pool this year, and realignment of the river should minimize dewatering downstream pools (red line.)

We also suggested that this project should be coordinated with other objectives, including
  • Water Infrastructure Upgrade/Relocation
  • Bike trail realignment into oak woodland
  • Equestrian trail realignment/management plan to reduce impacts
  • Levee removal – northern 300 ft(?) is obsolete
  • Riparian Restoration/ floodplain enhancement/steelhead habitat creation
A Public Hearing will be held Nov 24, 2009 at 10:30 am at the County Board of Supervisors.
For more information contact project manager Theresa Lubin 805-654-3968

Monday, November 9, 2009

Volunteers work on Ojai creek


Over 20 volunteers came out on Saturday for the kickoff of a well-planned collaboration to restore a section of the Ojai Creek. On the first three Saturdays of this month, the riparian corridor that meanders through Libbey Park will be restored and enhanced through removal of invasive non-native plants.

The project will improve the creek’s flow and reestablish a functioning wetland and riverbank ecosystem to support a diversity of fish and wildlife species.

The Ojai Creek Restoration Project is a collaboration of the Ojai Valley Green Coalition under the leadership of conservation biologist and Watershed Committee Chair Brian Holly, and of representatives from the C.R.E.W, the Ojai Valley Land Conservancy, BioResource Consultants, Inc., and Glenn Hawks and Associates, along with numerous other volunteers.

Members of the community are invited to participate on any or all of three consecutive Saturdays starting on November 7 - 9:30 a.m. at the Libbey Park Gazebo.

For more info contact Brian Holly - beholly@gmail.com


In the news:
http://www.vcstar.com/news/2009/nov/21/reworking-the-creek-ojai-crew-to-replant-libbey/