Mejoras en los sistemas de Agua Potable y Saneamiento en San Benito, Texas

Water and Wastewater Facility Improvements in San Benito, Texas

Project Location

Ubicación del Proyecto

Population year 2000: 27,686 Population year 2025: 40,240Population growth rate: 17% between 2000-2010 14% between 2010-2025 Average Water Consumption: 126 gpcd

Infrastructure coverage:

Potable Water 100%

Sewer Collection 100%

Wastewater treatment 100%

BECC General Criteria

Criterio General de COCEF

1. Water and Wastewater Treatment 2. Project located within 62 miles of the

U.S./Mexico border3. The WTP and WWTP will provide a

secure water supply and a safe wastewater treatment to the citizens of San Benito, Texas

Background

Antecedentes

Water Treatment Plant

Background

Antecedentes

Water Treatment Plant

Project Components

Componentes del Proyecto

• Construction of a 10 MGD WTP (6 MGD first phase)

• Construction of two 16-inch transmission lines

• 1 MG elevated storage tank

• Construction of a 5 MGD WWTP ( 2.5 MGD first phase)

WTP

planta potabilizadora

Water Treatment Plant

Project Components

Componentes del proyecto

Elevated Storage Tank

Jefferson St.

Project Components

Componentes del proyecto

Wastewater Treatment Plant (lagoon)

Human Health & Environment Criteria

Criterio de Salud Humana y Medio Ambiente

1. Human Health and Environmental need

The WTP exceeded maximum permitted treatment capacity, with a resulting TNRCC issuance of an Enforcement Order. An EPA Administrative Order for violation of permitted treatment parameters for BOD and TSS has been issued for the WWTP. Existing elevated storage facilities, doesn’t meet TNRCC’s minimum standards.

Human Health & Environment Criteria

Criterio de Salud Humana y Medio Ambiente

Reported Waterborne Disease Cases (Cameron County)

Disease Cases

Year

1997 1998 1999

Amebiasis 24 20 0

Campylobacteriosis 13 12 28

Salmonelosis 41 51 48

Shigelosis 59 134 77

Hepatitis A 273 217 184

Hepatitis B 26 25 17

Hepatitis C 4 13 0

 

Human Health & Environment Criteria

Criterio de Salud Humana y Medio Ambiente

2. Environmental Assesment

An EID was prepared in accordance with State and Federal requirements. The USEPA reviewed the EID. The FONSI was issued on August 8, 2002.

3. Compliance with ApplicableEnvironmental and Cultural ResourceLaws and Regulations

Coordination with relevant State and Federal Agencies was made. Project approval responses were obtained from all agencies contacted. The project is in compliance with all applicable environmental and cultural resource laws and regulations.

Human Health & Environment Criteria

Criterio de Salud Humana y Medio Ambiente

Wastewater Treatment Plant discharge

Human Health & Environment Criteria

Criterio de Salud Humana y Medio Ambiente

Elevated Storage Tank

Jefferson St.

1. Appropriate Technology

Both WTP and WWTP will utilize standard treatment process. WTP will include coagulation, sedimentation, clarification, filtration, and chlorination. WWTP will be an extended aeration system adjacent to the existing lagoon.

2. O & M PlanThe consultant will be responsible for the development of the O&M manuals. These manuals will be completed prior to completion of construction. Operation personel will receive training prior to the start up of the WTP and WWTP.

3. Compliance with applicable design norms and regulations

The TNRCC and TWDB will review the design of the entire project, which must meet State design criteria. Permits will be required for both WTP and WWTP.

Technical Feasibility

Factibilidad Técnica

Technical Feasibility

Factibilidad Técnica

Existing WTP

Existing elevated storage

tank

New elevated storage tank

New WTP

Financial Feasibility

Factibilidad Financiera

Concept Amount US$    Water Treatment Plant

Elevated Storage Tank

18,069,852

3,861,447   

Wastewater Treatment Plant 10,512,936   

    Total $32,444,235

Financial Feasibility

Factibilidad Financiera

 

Source Amount (US$)

%

Texas Water Development Board (loan)

BEIF construction (grant)

17,533,351 54

14,910,884 46

Total $32,444,235 100%

BEIF Transition Assistance funds $2,999,341

Financial Feasibility

Factibilidad Financiera

Single Family RatesYEAR WATER SEWER TOTAL

2003 $ 18.01 $ 15.50 $ 33.51

2004 $ 21.26 $ 16.42 $ 37.68

2005 $ 24.66 $ 17.41 $ 42.07

2006 $ 28.60 $ 18.46 $ 47.06

2007 $ 30.03 $ 19.57 $ 49.60

2008 $ 31.54 $ 20.54 $ 52.08

Average water bill 33 US$ for 8,000 gal/month

1. Comprehensive Public Participation Plan

• Steering Committee formed on January, 2002.• Public Participation Plan submitted and approved by BECC in January 2002.

2. Public Information

•Facility Plan and Step II Document available for public review at City Hall and local library 30 days prior to the first public meeting. •Committee carried out 28 presentations to local organizations. •Fact sheets available at meetings, handed to customers, and delivered via mail. •Newspaper and television coverage of project. •Public meetings held in February, June and July 2002.

Community Participation

Participación Comunitaria

Community Participation

Participación Comunitaria

Public meeting

Community Participation

Participación Comunitaria

Steering Committee

• The project complies with BECC’s definition of Sustainable Development.

Sustainable Development

Desarrollo Sustentable

2. Institutional and Human Building

• The project will build institutional capacity by the creation of fund reserves for any potential emergencies, and training to the plant operators.

3. Conformance with Applicable Local/Regional Conservation and Development Plans

•The project is in conformance with the Water and Wastewater Master Plan developed by the city in 1998. The city has a Water Conservacion and Drought Contingency Plan.

1. Definition and Principles

4. Natural Resources Conservation • The project will improve the water quality in the

discharge to the Arroyo Colorado.

5. Community Development

• The project will provide sufficient capacity to serve exisiting customers and the city will be able to manage growth within its available resources.

Staff Recommendation

Recomendación del Personal

Considering the previous information based on the project developed, BECC Staff recommends:the “Water and Wastewater Facility Improvements in San Benito, Texas” for certification

Sustainable Development

Desarrollo Sustentable

Front view of the Water Treatment Plant