Maine Healthy Beaches Portal

Water Quality Monitoring and Beach Status

Beach Monitoring Season is from Memorial Day to Labor Day

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Table

Water Quality Monitoring Data

Fort Foster - Horn Point

Maine's Beach Action Value (BAV or safety threshold) for Enterococcus bacteria in marine waters is 104 MPN/100mL.

Site Name Date Collected Enterococcus (MPN/100mL)
K-4
05/29/2024
< 10
K-4
06/11/2024
< 10
K-4
06/25/2024
10
K-4
07/09/2024
< 10
K-4
07/23/2024
10
K-4
08/06/2024
< 10
K-4
08/20/2024
265
K-4
08/22/2024
< 10
K-4
08/27/2024
< 10
K-4
05/27/2025
< 10
K-4
06/10/2025
31
K-4
07/08/2025
< 10
K-4
06/24/2025
< 10
K-4
07/22/2025
< 10
K-4
08/05/2025
< 10
K-4
08/19/2025
< 10
K-4
06/07/2022
10
K-4
06/21/2022
< 10
K-4
07/05/2022
52
K-4
07/19/2022
10
K-4
08/02/2022
< 10
K-4
08/16/2022
< 10
K-4
08/30/2022
10
K-4
05/30/2023
< 10
K-4
06/13/2023
< 10
K-4
06/27/2023
10
K-4
07/11/2023
< 10
K-4
07/25/2023
< 10
K-4
08/08/2023
20
K-4
08/22/2023
< 10
K-4
06/30/2020
10
K-4
07/14/2020
< 10
K-4
07/28/2020
41
K-4
08/11/2020
63
K-4
08/25/2020
< 10
K-4
06/15/2021
209
K-4
06/16/2021
< 10
K-4
06/29/2021
< 10
K-4
07/13/2021
10
K-4
07/27/2021
< 10
K-4
08/10/2021
10
K-4
08/24/2021
< 10
K-4
06/02/2026
< 10
K-4
06/16/2026
20
K-4
06/30/2026
< 10
K-4
07/14/2026
31
K-4
07/28/2026
< 10
K-4
08/04/2026
< 10
K-4
08/18/2026
< 10
K-4
09/01/2026
< 10

Download Data: Water quality data are available for download using the buttons below. This download will include date collected, time collected, Enterococcus, salinity, water temperature, and air temperature.

Download Excel   Download CSV   Download XML

*MHB's water quality data are provided in real-time and are subject to revision. This season’s data are preliminary and have not received final quality assurance/quality control (QA/QC) review.