| Date | P.O. Hoffer Intake (µg/L) | |
| 5/13/14 | 3.90 | |
| 6/12/14 | 2.90 | |
| 7/10/14 | 5.70 | |
| 8/4/14 | 3.80 | |
| 9/4/14 | 2.10 | |
| 10/23/14 | 2.50 | |
| 11/12/14 | 9.60 | |
| 12/9/14 | 2.40 | |
| 1/13/15 | 2.10 | |
| 2/11/15 | 1.80 | |
| 3/17/15 | 1.60 | |
| 4/7/15 | 2.40 | |
| 5/13/15 | 4.50 | |
| 6/16/15 | 2.20 | |
| 7/15/15 | 1.50 | |
| 8/18/15 | 2.50 | |
| 9/22/15 | 4.80 | |
| 10/28/15 | 2.30 | |
| 11/11/15 | 0.99 | |
| 12/28/15 | 0.28 | |
| 1/11/16 | 1.30 | |
| 2/24/16 | 1.50 | |
| 3/16/16 | 1.20 | |
| 4/13/16 | 1.40 | |
| 5/11/16 | 3.90 | |
| 6/14/16 | 1.80 | |
| 7/20/16 | 2.90 | |
| 8/23/16 | 0.59 | |
| 9/20/16 | 1.50 | |
| 10/26/16 | 0.67 | |
| 11/28/16 | 1.40 | |
| 12/27/16 | 1.20 | |
| 1/26/17 | 5.00 | |
| 2/22/17 | 4.80 | |
| 3/16/17 | 1.90 | |
| 4/5/17 | 2.30 | |
| 5/3/17 | 0.81 | |
| 6/20/17 | 2.20 | |
| 7/13/17 | 0.76 | |
| 8/15/17 | 0.66 | |
| 9/19/17 | 3.00 | |
| 10/12/17 | 2.30 | |
| 11/14/17 | 2.50 | |
| 12/11/17 | 2.40 | |
| 1/10/18 | 5.40 | |
| 2/21/18 | 3.90 | |
| 3/13/18 | 1.70 | |
| 4/11/18 | 1.60 | |
| 5/29/18 | 1.40 | |
| 6/25/18 | 1.70 | |
| 7/23/18 | 0.84 | |
| 8/13/18 | 0.25 | |
| 9/25/18 | 0.22 | |
| 10/17/18 | 0.31 | |
| 11/6/18 | 0.33 | |
| 12/12/18 | 0.09 | |
| 1/16/19 | 0.56 | |
| 2/6/19 | 0.76 | |
| 3/19/19 | 0.42 | |
| 4/10/19 | 0.48 | |
| 5/21/19 | 0.76 | |
| 6/12/19 | 1.60 | |
| 7/16/19 | 0.52 | |
| 8/21/19 | 1.10 | |
| 9/11/19 | 5.90 | |
| 10/24/19 | 1.40 | |
| 10/24/19 | 2.04 | |
| 10/25/19 | 1.68 | |
| 10/26/19 | 1.55 | |
| 10/27/19 | 1.54 | |
| 11/13/19 | 1.90 | |
| 12/9/19 | 0.94 | |
| 1/8/20 | 1.10 | |
| 2/17/20 | 0.75 | |
| 3/10/20 | 0.99 | |
| 4/15/20 | 0.68 | |
| 5/11/20 | 0.27 | |
| 6/24/20 | 0.15 | |
| 7/20/20 | 0.37 | |
| 8/26/20 | 0.41 | |
| 9/28/20 | 0.34 | |
| 10/14/20 | 0.25 | |
| 11/11/20 | 0.98 | |
| 12/15/20 | 0.13 | |
| 1/13/21 | 0.12 | |
| 2/17/21 | 0.11 | |
| 3/17/21 | 0.18 | |
| 4/14/21 | 0.36 | |
| 5/20/21 | 0.32 | |
| 6/16/21 | 0.28 | |
| 7/7/21 | 0.23 | |
| 8/24/21 | 0.69 | |
| 9/14/21 | 0.47 | |
| 10/6/21 | 0.42 | |
| 11/9/21 | 0.70 | |
| 11/10/21 | 0.00 | * Sample was below <2 ug/L |
| 11/11/21 | 0.00 | * Sample was below <2 ug/L |
| 11/12/21 | 0.00 | * Sample was below <2 ug/L |
| 11/20/21 | 0.00 | * Sample was below <2 ug/L |
| 11/21/21 | 0.00 | * Sample was below <2 ug/L |
| 11/22/21 | 0.00 | * Sample was below <2 ug/L |
| 12/16/21 | 4.6 | |
| 1/25/22 | 0.36 | |
| 2/9/22 | 0.47 | |
| 3/14/22 | 0.28 | |
| 4/12/22 | 0.39 | |
| 5/16/22 | 0.36 | |
| 6/23/22 | BQL* | * Sample was below <2 ug/L |
| 7/20/22 | 1.23 | |
| 8/24/22 | BQL* | * Sample was below <1 ug/L |
| 9/22/22 | BQL* | * Sample was below <1 ug/L |
| 10/13/22 | BQL* | * Sample was below <1 ug/L |
| 11/10/22 | BQL* | * Sample was below <1 ug/L |
| 12/7/22 | 1.12 | |
| 1/17/23 | BQL* | * Sample was below <1 ug/L |
| 2/15/23 | BQL* | * Sample was below <1 ug/L |
| 3/15/23 | BQL* | * Sample was below <1 ug/L |
| 4/20/23 | BQL* | * Sample was below <1 ug/L |
| 5/23/23 | BQL* | * Sample was below <1 ug/L |
| 6/7/23 | BQL* | * Sample was below <1 ug/L |
| 7/20/23 | BQL* | * Sample was below <1 ug/L |
| 8/9/23 | 1.23 | * Sample was below <1 ug/L |
| 9/13/23 | BQL* | * Sample was below <1 ug/L |
| 10/19/23 | BQL* | * Sample was below <1 ug/L |
| 11/15/23 | 1.14 | * Sample was below <1 ug/L |
| 12/14/23 | 1.76 | * Sample was below <1 ug/L |
| 1/25/24 | BQL* | * Sample was below <1 ug/L |
| 2/21/24 | BQL* | * Sample was below <1 ug/L |
| 3/20/24 | BQL* | * Sample was below <1 ug/L |
| 4/18/24 | BQL* | * Sample was below <1 ug/L |