Water Quality Monitoring Data

Riverside (Ogunquit)

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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)
OG-04	05/28/2024	529
OG-04	05/29/2024	98
OG-04	06/04/2024	< 10
OG-04	06/11/2024	10
OG-04	06/17/2024	10
OG-04	06/25/2024	1553
OG-04	06/26/2024	10
OG-04	07/02/2024	20
OG-04	07/09/2024	121
OG-04	07/11/2024	52
OG-04	07/16/2024	< 10
OG-04	07/23/2024	960
OG-04	07/24/2024	20
OG-04	07/30/2024	< 10
OG-04	08/06/2024	473
OG-04	08/07/2024	20
OG-04	08/13/2024	< 10
OG-04	08/20/2024	1500
OG-04	08/21/2024	< 10
OG-04	08/28/2024	< 10
OG-04	05/27/2025	10
OG-04	06/03/2025	< 10
OG-04	06/10/2025	435
OG-04	06/11/2025	< 10
OG-04	06/17/2025	< 10
OG-04	06/24/2025	886
OG-04	06/26/2025	712
OG-04	07/01/2025	20
OG-04	07/08/2025	< 10
OG-04	07/15/2025	279
OG-04	07/16/2025	41
OG-04	07/22/2025	< 10
OG-04	07/29/2025	31
OG-04	08/05/2025	< 10
OG-04	08/12/2025	201
OG-04	08/13/2025	10
OG-04	08/19/2025	< 10
OG-04	08/26/2025	110
OG-04	08/28/2025	10
OG-04	05/31/2022	203
OG-04	06/02/2022	379
OG-04	06/07/2022	10
OG-04	06/14/2022	1046
OG-04	06/15/2022	10
OG-04	06/21/2022	< 10
OG-04	06/29/2022	52
OG-04	07/05/2022	10
OG-04	07/12/2022	31
OG-04	07/19/2022	96
OG-04	07/21/2022	< 10
OG-04	07/26/2022	< 10
OG-04	07/26/2022	< 10
OG-04	08/02/2022	10
OG-04	08/09/2022	< 10
OG-04	08/16/2022	84
OG-04	08/23/2022	< 10
OG-04	08/30/2022	31
OG-04	05/30/2023	< 10
OG-04	06/06/2023	132
OG-04	06/08/2023	63
OG-04	06/13/2023	10
OG-04	06/20/2023	374
OG-04	06/21/2023	86
OG-04	06/27/2023	10
OG-04	07/05/2023	565
OG-04	07/06/2023	496
OG-04	07/11/2023	98
OG-04	07/18/2023	309
OG-04	07/19/2023	10
OG-04	07/25/2023	10
OG-04	08/01/2023	171
OG-04	08/02/2023	10
OG-04	08/08/2023	771
OG-04	08/10/2023	41
OG-04	08/15/2023	414
OG-04	08/17/2023	336
OG-04	08/22/2023	121
OG-04	08/24/2023	< 10
OG-04	08/30/2023	52
OG-04	06/16/2020	10
OG-04	06/23/2020	1467
OG-04	06/24/2020	987
OG-04	06/25/2020	548
OG-04	06/30/2020	< 10
OG-04	07/07/2020	185
OG-04	07/08/2020	121
OG-04	07/09/2020	< 10
OG-04	07/14/2020	< 10
OG-04	07/21/2020	1860
OG-04	07/22/2020	836
OG-04	07/23/2020	121
OG-04	07/28/2020	< 10
OG-04	08/04/2020	122
OG-04	08/05/2020	< 10
OG-04	08/11/2020	31
OG-04	08/18/2020	10
OG-04	08/25/2020	< 10
OG-04	09/01/2020	63
OG-04	06/01/2021	173
OG-04	06/02/2021	63
OG-04	06/08/2021	10
OG-04	06/15/2021	754
OG-04	06/16/2021	473
OG-04	06/17/2021	41
OG-04	06/22/2021	< 10
OG-04	06/23/2021	10
OG-04	06/29/2021	63
OG-04	07/06/2021	< 10
OG-04	07/13/2021	1017
OG-04	07/14/2021	536
OG-04	07/15/2021	327
OG-04	07/20/2021	< 10
OG-04	07/27/2021	233
OG-04	07/28/2021	160
OG-04	07/29/2021	63
OG-04	08/03/2021	< 10
OG-04	08/10/2021	2909
OG-04	08/11/2021	41
OG-04	08/17/2021	< 10
OG-04	08/24/2021	594
OG-04	08/26/2021	98
OG-04	08/31/2021	< 10
OG-04	05/26/2026	< 10
OG-04	06/02/2026	75
OG-04	06/09/2026	< 10
OG-04	06/16/2026	238
OG-04	06/17/2026	< 10
OG-04	06/23/2026	318
OG-04	06/24/2026	1130
OG-04	06/25/2026	< 10
OG-04	06/30/2026	52
OG-04	07/07/2026	< 10
OG-04	07/14/2026	228
OG-04	07/15/2026	31
OG-04	07/21/2026	10
OG-04	07/28/2026	< 10
OG-04	08/04/2026	173
OG-04	08/05/2026	10
OG-04	08/11/2026	< 10
OG-04	08/18/2026	< 10
OG-04	08/25/2026	41
OG-04	09/01/2026	31

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.