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Lake Meredith National Recreation AreaAcoustic Inventory and Monitoring Services for Lake Meredith NRA Off-Road Vehicle Management Plan/EIS

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N2310091023Federal

Contract Overview

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The contract involves acoustic inventory and monitoring services for the Lake Meredith National Recreation Area Off-Road Vehicle Management Plan and Environmental Impact Statement. Data collection took place during two separate 30-day sessions spanning different seasons to capture variations in park activity. Five monitoring sites were utilized: two in the Blue Creek region and three in Rosita, with two of these sites equipped with continuous audio recording devices. Weather stations in each region recorded key environmental conditions such as wind speed, direction, temperature, humidity, and barometric pressure. The measurements correspond to periods representing low park activity in late fall (November/December 2008) and peak activity during the Sand Drags event (February/March 2009). Data were recorded using Larson Davis 831 sound level meters and referenced to the WGS84 datum, resulting in a total of four sets of 25-day data for analysis. Interested parties were also provided access to a fully functional test version of the NPS Natural Sounds Program ambient sound analysis software to assist in proposal preparation. The proposal submission deadline was extended to 4:00 PM MDT on Monday, July 27, 2009. The contract is managed by the Department of the Interior's Dsc Contracting Services Division, and the solicitation outlines detailed requirements for comprehensive acoustic monitoring intended to inform off-road vehicle management decisions within the park.

General Info

Acoustic monitoring at Lake Meredith recorded seasonal park sounds for off-road vehicle management planning.

NAICS

541380 - Testing Laboratories and Services

Place of Performance

Hutchinson County, Texas 79036 USA, CO

Set-Aside

NONE

Documents

0

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Timeline

2 updates
PhaseCombined Synopsis
Posted

Combined Synopsis

Notice updated

The notice title changed. The notice description changed.

Notice updated

The notice title changed. The notice description changed.

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Organization & Contact Information

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AgencyDepartment Of The Interior → Dsc Contracting Services Division
ContactsNo contacts available
OfficeDenver, CO, 80225, USA
Office AddressDenver, CO, 80225, USA
ContactsNo contact information available

Full Description

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CLARIFICATIONS & TIME EXTENSION Question 1: Part 2 of the Description states, Two 30-day data collection sessions occurred in two different seasons Additionally observer logging sites / source identification were recorded in accordance with section2.0 of the AASRMG. Is it correct to assume that there are four total 25-day sets of datatwo measurement sites with two sets of data supplemented by observer logs? If not, how many measurement sites are included in each session and ultimately how many 25-day sets will be included for analysis? ANSWER 1: Yes, four total sets of data as assumed Question 2: Is it possible to receive a copy of the NPS Natural Sounds Program ambient sound analysis software at this time in order to review prior to submitting our proposal? ANSWER 2: Yes, we can provide a fully functional test version for prior review. Question 3: How many monitoring sites? The solicitation explains that data was collected in two 30-day sessions and that there are two ORV areas. It does not specify whether there was more than one monitoring site in each ORV area. ANSWER 3: Measurements were collected over two sampling periods: November/December 2008 and February/March 2009. The park has lower activity in late fall, so the Nov/Dec measurements are representative of the park low-use or "quiet" condition. The Feb/Mar measurements were conducted during the Sand Drags event, which is representative of peak use. The first measurement range was from 12 Nov 2008 through 10 Dec 2008 and the second measurement range from 16 Feb 2009 through 19 Mar 2009. Five sites were selected for noise monitoring. Noise levels were measured via Larson Davis 831 sound level meters (SLM). Two sites were located in the Blue Creek region of the park and three in Rosita. Two of the sites (one in each region) had audio recorders capturing continuously. Weather stations, one in each region, were set to collect wind speed, wind gust, wind direction, temperature, relative humidity, and barometric pressure. The datum is WGS84. The proposal due date has been extended to 4:00 PM MDT on Monday, July 27, 2009.

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