Water Quality Monitoring Data

York Harbor Beach

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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)
YK-20	05/28/2024	< 10
YK-20	06/04/2024	31
YK-20	06/11/2024	30
YK-20	06/17/2024	< 10
YK-20	06/25/2024	< 10
YK-20	07/02/2024	< 10
YK-20	07/09/2024	20
YK-20	07/16/2024	31
YK-20	07/23/2024	86
YK-20	07/30/2024	10
YK-20	08/06/2024	40
YK-20	08/13/2024	10
YK-20	08/20/2024	75
YK-20	08/27/2024	20
YK-20	05/27/2025	10
YK-20	06/03/2025	< 10
YK-20	06/10/2025	< 10
YK-20	06/24/2025	291
YK-20	06/26/2025	20
YK-20	07/01/2025	< 10
YK-20	07/08/2025	30
YK-20	07/15/2025	< 10
YK-20	07/15/2025	< 10
YK-20	07/22/2025	10
YK-20	07/22/2025	< 10
YK-20	07/29/2025	10
YK-20	07/29/2025	10
YK-20	08/05/2025	< 10
YK-20	08/05/2025	< 10
YK-20	08/12/2025	20
YK-20	08/12/2025	31
YK-20	08/19/2025	52
YK-20	08/19/2025	31
YK-20	08/26/2025	51
YK-20	08/26/2025	10
YK-20	05/31/2022	< 10
YK-20	06/07/2022	< 10
YK-20	06/14/2022	10
YK-20	06/21/2022	< 10
YK-20	06/28/2022	< 10
YK-20	07/05/2022	20
YK-20	07/12/2022	< 10
YK-20	07/19/2022	20
YK-20	07/26/2022	98
YK-20	08/03/2022	< 10
YK-20	08/09/2022	52
YK-20	08/16/2022	< 10
YK-20	08/23/2022	84
YK-20	08/30/2022	< 10
YK-20	05/30/2023	< 10
YK-20	06/06/2023	10
YK-20	06/13/2023	31
YK-20	06/20/2023	10
YK-20	06/27/2023	< 10
YK-20	07/05/2023	145
YK-20	07/12/2023	< 10
YK-20	07/18/2023	109
YK-20	07/20/2023	20
YK-20	07/25/2023	703
YK-20	07/26/2023	< 10
YK-20	08/01/2023	246
YK-20	08/02/2023	10
YK-20	08/08/2023	52
YK-20	08/15/2023	31
YK-20	08/22/2023	10
YK-20	08/28/2023	20
YK-20	06/23/2020	20
YK-20	06/30/2020	20
YK-20	07/07/2020	< 10
YK-20	07/14/2020	< 10
YK-20	07/21/2020	10
YK-20	07/28/2020	< 10
YK-20	08/04/2020	20
YK-20	08/11/2020	10
YK-20	08/18/2020	41
YK-20	08/25/2020	20
YK-20	06/01/2021	20
YK-20	06/08/2021	10
YK-20	06/15/2021	< 10
YK-20	06/22/2021	216
YK-20	06/24/2021	< 10
YK-20	06/29/2021	< 10
YK-20	07/06/2021	< 10
YK-20	07/13/2021	62
YK-20	07/15/2021	20
YK-20	07/20/2021	448
YK-20	07/21/2021	148
YK-20	07/22/2021	< 10
YK-20	07/27/2021	10
YK-20	08/03/2021	< 10
YK-20	08/10/2021	10
YK-20	08/17/2021	< 10
YK-20	08/31/2021	10
YK-20	05/26/2026	20
YK-20	06/02/2026	31
YK-20	06/09/2026	< 10
YK-20	06/16/2026	41
YK-20	06/16/2026	20
YK-20	06/23/2026	< 10
YK-20	06/23/2026	< 10
YK-20	06/30/2026	< 10
YK-20	07/07/2026	< 10
YK-20	07/14/2026	96
YK-20	07/21/2026	10
YK-20	07/28/2026	10
YK-20	08/04/2026	10
YK-20	08/11/2026	10
YK-20	08/18/2026	30
YK-20	08/25/2026	10
YK-20	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.

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*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.