Nitrate and nitrite
Bayleaf Master
Nitrate and nitrite enter water from fertilizer runoff, septic tanks and urban runoff. These contaminants can cause oxygen deprivation for infants and increase the risk of cancer. Nitrite is significantly more toxic than nitrate. Click here to read more about nitrate.
606
Samples
0
Samples exceeding legal limit (MCL)
115
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | 0.338 ppm | 102 | 22 | ND - 2.50 ppm |
| 2015 | 0.301 ppm | 100 | 17 | ND - 4.40 ppm |
| 2016 | 0.290 ppm | 101 | 18 | ND - 2.90 ppm |
| 2017 | 0.433 ppm | 98 | 21 | ND - 7.10 ppm |
| 2018 | 0.250 ppm | 103 | 15 | ND - 3.40 ppm |
| 2019 | 0.413 ppm | 102 | 22 | ND - 4.90 ppm |
ppm = parts per million
State and national drinking water standards and health guidelines
EWG Health Guideline 0.14 ppm
The health guideline of 0.14 parts per million, or ppm, for nitrate and nitrite is based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. This guideline represents a one-in-one-million annual cancer risk level.
EPA Maximum Contaminant
Level (MCL) 10 ppm
ppm = parts per million
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-06 | C316052-01 | ND |
| 2014-01-07 | C316065-02 | 1.60 ppm |
| 2014-01-09 | C316054-01 | ND |
| 2014-01-09 | C316055-01 | ND |
| 2014-01-09 | C316058-01 | 1.10 ppm |
| 2014-01-09 | C316058-02 | ND |
| 2014-01-09 | C316058-04 | ND |
| 2014-01-09 | C316076-01 | ND |
| 2014-01-09 | C400339-01 | 1.40 ppm |
| 2014-01-09 | C400339-03 | 1.40 ppm |
| 2014-01-15 | C316030-01 | ND |
| 2014-01-15 | C316069-01 | ND |
| 2014-01-16 | C316061-01 | 2.40 ppm |
| 2014-01-16 | C400449-01 | ND |
| 2014-01-16 | C400455-01 | ND |
| 2014-01-20 | C316003-01 | ND |
| 2014-01-20 | C316018-03 | ND |
| 2014-01-20 | C316025-01 | 2.00 ppm |
| 2014-01-20 | C316025-02 | ND |
| 2014-01-20 | C316026-01 | ND |
| 2014-01-20 | C316037-01 | ND |
| 2014-01-20 | C316037-02 | ND |
| 2014-01-20 | C316037-03 | 1.10 ppm |
| 2014-01-20 | C316037-04 | ND |
| 2014-01-23 | C316019-01 | ND |
| 2014-01-27 | C316044-01 | ND |
| 2014-01-27 | C400883-01 | ND |
| 2014-01-27 | C401066-01 | 1.60 ppm |
| 2014-01-27 | C401066-02 | ND |
| 2014-02-04 | C316007-01 | 1.80 ppm |
| 2014-02-04 | C316007-02 | 1.40 ppm |
| 2014-02-04 | C316007-03 | 1.60 ppm |
| 2014-02-04 | C316013-01 | ND |
| 2014-02-05 | C316073-01 | 1.30 ppm |
| 2014-02-06 | C316015-01 | ND |
| 2014-02-06 | C316047-01 | 2.10 ppm |
| 2014-02-10 | C401067-01 | ND |
| 2014-02-10 | C401262-01 | 1.60 ppm |
| 2014-02-19 | C316011-01 | ND |
| 2014-02-19 | C316020-01 | ND |
| 2014-02-19 | C316071-02 | 2.50 ppm |
| 2014-02-20 | C316033-01 | ND |
| 2014-02-20 | C316033-02 | ND |
| 2014-02-20 | C316033-03 | ND |
| 2014-02-24 | C316009-01 | 1.20 ppm |
| 2014-02-24 | C316027-01 | ND |
| 2014-02-24 | C316035-01 | ND |
| 2014-02-24 | C316041-01 | ND |
| 2014-02-24 | C316041-02 | ND |
| 2014-02-24 | C402087-01 | ND |
| 2014-02-24 | C402087-02 | ND |
| 2014-02-24 | C402087-03 | ND |
| 2014-02-26 | C316017-01 | ND |
| 2014-02-26 | C316049-01 | 1.90 ppm |
| 2014-02-26 | C316056-01 | ND |
| 2014-02-26 | C316063-01 | ND |
| 2014-02-26 | C316063-02 | 1.10 ppm |
| 2014-02-26 | C401719-01 | ND |
| 2014-03-05 | C316046-01 | 1.10 ppm |
| 2014-04-01 | C402987-01 | ND |
| 2014-04-01 | C402987-02 | ND |
| 2014-04-01 | C402989-01 | ND |
| 2014-04-01 | C402999-01 | ND |
| 2014-04-01 | C402999-02 | 2.10 ppm |
| 2014-04-01 | C403004-01 | ND |
| 2014-04-02 | C402977-03 | ND |
| 2014-04-02 | C402977-05 | ND |
| 2014-04-02 | C402986-02 | ND |
| 2014-04-02 | C403009-01 | ND |
| 2014-04-02 | C403009-02 | 2.00 ppm |
| 2014-04-02 | C403009-03 | ND |
| 2014-04-02 | C403009-04 | ND |
| 2014-04-02 | C403009-06 | ND |
| 2014-04-02 | C403009-08 | ND |
| 2014-04-02 | C403009-11 | ND |
| 2014-04-03 | C404033-01 | ND |
| 2014-04-03 | C402990-01 | ND |
| 2014-04-03 | C402990-03 | ND |
| 2014-04-03 | C404443-02 | ND |
| 2014-04-03 | C404443-03 | ND |
| 2014-04-07 | C403012-01 | ND |
| 2014-04-07 | C403012-02 | ND |
| 2014-04-09 | C404273-03 | ND |
| 2014-04-10 | C404597-01 | ND |
| 2014-04-10 | C404598-02 | ND |
| 2014-04-10 | C404790-01 | ND |
| 2014-04-10 | C404444-03 | ND |
| 2014-04-14 | C403018-01 | ND |
| 2014-04-15 | C404040-01 | ND |
| 2014-04-17 | C404966-02 | ND |
| 2014-04-22 | C404027-01 | 0.200 ppm |
| 2014-04-23 | C404797-01 | ND |
| 2014-04-24 | C404968-01 | ND |
| 2014-04-29 | C404445-01 | ND |
| 2014-05-07 | C403017-01 | ND |
| 2014-05-21 | C405108-01 | ND |
| 2014-05-27 | C402984-01 | ND |
| 2014-07-21 | C408793-01 | ND |
| 2014-08-20 | C407813-01 | ND |
| 2014-08-20 | C407813-04 | ND |
| 2014-08-27 | C410827-02 | ND |
| 2014-09-17 | C411468-01 | ND |
| 2015-01-19 | ND | |
| 2015-01-19 | ND | |
| 2015-01-19 | ND | |
| 2015-01-19 | ND | |
| 2015-01-19 | ND | |
| 2015-01-19 | ND | |
| 2015-01-21 | ND | |
| 2015-01-21 | ND | |
| 2015-01-21 | ND | |
| 2015-01-21 | 2.30 ppm | |
| 2015-01-21 | ND | |
| 2015-01-21 | ND | |
| 2015-01-22 | ND | |
| 2015-01-22 | ND | |
| 2015-01-22 | 1.70 ppm | |
| 2015-01-26 | 1.40 ppm | |
| 2015-01-26 | ND | |
| 2015-01-26 | 2.20 ppm | |
| 2015-01-26 | ND | |
| 2015-01-26 | ND | |
| 2015-01-26 | ND | |
| 2015-01-27 | 1.80 ppm | |
| 2015-01-27 | 1.40 ppm | |
| 2015-01-27 | 1.20 ppm | |
| 2015-01-27 | ND | |
| 2015-01-27 | ND | |
| 2015-01-27 | ND | |
| 2015-01-27 | ND | |
| 2015-01-28 | ND | |
| 2015-01-28 | 1.50 ppm | |
| 2015-01-28 | ND | |
| 2015-01-28 | ND | |
| 2015-01-28 | ND | |
| 2015-01-28 | ND | |
| 2015-01-28 | ND | |
| 2015-01-28 | 1.30 ppm | |
| 2015-01-28 | ND | |
| 2015-01-28 | ND | |
| 2015-01-28 | 1.30 ppm | |
| 2015-01-28 | ND | |
| 2015-01-29 | ND | |
| 2015-01-29 | ND | |
| 2015-01-29 | ND | |
| 2015-01-29 | ND | |
| 2015-01-29 | ND | |
| 2015-01-29 | 1.50 ppm | |
| 2015-01-29 | ND | |
| 2015-01-30 | ND | |
| 2015-01-30 | ND | |
| 2015-01-30 | 2.20 ppm | |
| 2015-01-30 | 2.30 ppm | |
| 2015-01-30 | ND | |
| 2015-02-03 | 1.30 ppm | |
| 2015-02-03 | 4.40 ppm | |
| 2015-02-03 | ND | |
| 2015-02-05 | ND | |
| 2015-03-24 | ND | |
| 2015-04-06 | ND | |
| 2015-04-06 | 1.20 ppm | |
| 2015-04-08 | ND | |
| 2015-04-08 | ND | |
| 2015-04-08 | ND | |
| 2015-04-08 | ND | |
| 2015-04-08 | ND | |
| 2015-04-08 | ND | |
| 2015-04-09 | ND | |
| 2015-04-09 | ND | |
| 2015-04-09 | ND | |
| 2015-04-13 | ND | |
| 2015-04-13 | ND | |
| 2015-04-14 | ND | |
| 2015-04-14 | 1.10 ppm | |
| 2015-04-15 | ND | |
| 2015-04-15 | ND | |
| 2015-04-16 | ND | |
| 2015-04-20 | ND | |
| 2015-04-20 | ND | |
| 2015-04-21 | ND | |
| 2015-04-22 | ND | |
| 2015-04-23 | ND | |
| 2015-04-23 | ND | |
| 2015-04-28 | ND | |
| 2015-04-28 | ND | |
| 2015-04-29 | ND | |
| 2015-04-29 | ND | |
| 2015-04-29 | ND | |
| 2015-04-29 | ND | |
| 2015-04-30 | ND | |
| 2015-04-30 | ND | |
| 2015-05-06 | ND | |
| 2015-05-06 | ND | |
| 2015-05-06 | ND | |
| 2015-05-06 | ND | |
| 2015-05-07 | ND | |
| 2015-05-13 | ND | |
| 2015-07-15 | ND | |
| 2015-07-15 | ND | |
| 2015-07-15 | ND | |
| 2015-07-15 | ND | |
| 2015-07-21 | ND | |
| 2016-01-04 | C515775-01 | ND |
| 2016-01-04 | C515793-01 | ND |
| 2016-01-04 | C515807-01 | ND |
| 2016-01-04 | C515807-02 | ND |
| 2016-01-04 | C515807-03 | ND |
| 2016-01-04 | C515807-04 | ND |
| 2016-01-05 | C515768-01 | 1.90 ppm |
| 2016-01-05 | C515768-03 | 1.40 ppm |
| 2016-01-06 | C515771-01 | 1.70 ppm |
| 2016-01-06 | C515786-01 | ND |
| 2016-01-06 | C515810-01 | ND |
| 2016-01-06 | C515810-02 | 1.30 ppm |
| 2016-01-07 | C515767-01 | ND |
| 2016-01-07 | C515773-01 | ND |
| 2016-01-07 | C515777-01 | ND |
| 2016-01-07 | C515777-02 | ND |
| 2016-01-07 | C515783-01 | ND |
| 2016-01-07 | C515804-01 | ND |
| 2016-01-07 | C515818-01 | ND |
| 2016-01-07 | C515820-01 | 1.50 ppm |
| 2016-01-07 | C515821-01 | ND |
| 2016-01-07 | C515836-01 | ND |
| 2016-01-07 | C515836-03 | 1.20 ppm |
| 2016-01-11 | C515780-01 | 1.50 ppm |
| 2016-01-11 | C515780-02 | ND |
| 2016-01-11 | C515790-02 | ND |
| 2016-01-11 | C515790-03 | ND |
| 2016-01-13 | CZ00759-01 | ND |
| 2016-01-13 | C515779-01 | ND |
| 2016-01-13 | C515795-01 | ND |
| 2016-01-13 | C515802-01 | ND |
| 2016-01-13 | C515802-02 | ND |
| 2016-01-13 | C515802-03 | ND |
| 2016-01-13 | C515830-01 | ND |
| 2016-01-13 | C515830-02 | 1.50 ppm |
| 2016-01-13 | C515840-01 | ND |
| 2016-02-01 | CZ01388-01 | 1.000 ppm |
| 2016-02-01 | CZ01389-01 | ND |
| 2016-02-02 | CZ01439-01 | ND |
| 2016-02-08 | C515817-01 | ND |
| 2016-02-10 | C515814-01 | ND |
| 2016-02-10 | C515815-01 | ND |
| 2016-02-22 | CZ02205-01 | 2.90 ppm |
| 2016-02-23 | C515797-01 | ND |
| 2016-03-02 | CZ02875-01 | 1.10 ppm |
| 2016-03-07 | C515822-01 | ND |
| 2016-03-07 | C515822-02 | ND |
| 2016-03-07 | C515832-01 | 2.20 ppm |
| 2016-03-07 | C515835-01 | ND |
| 2016-03-09 | C515828-01 | 1.50 ppm |
| 2016-03-09 | C515837-01 | ND |
| 2016-03-09 | CZ03647-01 | ND |
| 2016-03-09 | CZ03648-01 | 1.50 ppm |
| 2016-03-17 | C515816-01 | 1.60 ppm |
| 2016-03-17 | CZ04003-01 | ND |
| 2016-03-17 | CZ04011-01 | ND |
| 2016-03-17 | CZ04011-02 | ND |
| 2016-03-23 | CZ02854-01 | ND |
| 2016-04-14 | CZ03520-01 | ND |
| 2016-04-18 | CZ03153-01 | ND |
| 2016-04-18 | CZ03165-01 | 2.90 ppm |
| 2016-04-18 | CZ03165-02 | ND |
| 2016-04-18 | CZ03169-01 | ND |
| 2016-04-19 | CZ03125-05 | ND |
| 2016-04-19 | CZ03130-01 | ND |
| 2016-04-19 | CZ03135-01 | ND |
| 2016-04-19 | CZ03135-02 | 1.20 ppm |
| 2016-04-19 | CZ03148-01 | ND |
| 2016-04-19 | CZ03148-02 | ND |
| 2016-04-20 | CZ03168-01 | ND |
| 2016-04-20 | CZ05541-01 | ND |
| 2016-04-26 | CZ03156-01 | ND |
| 2016-04-28 | CZ03138-01 | ND |
| 2016-05-03 | CZ06063-01 | ND |
| 2016-05-03 | CZ06063-02 | ND |
| 2016-05-04 | CZ03133-01 | ND |
| 2016-05-04 | CZ03171-01 | ND |
| 2016-05-12 | CZ03140-02 | ND |
| 2016-05-12 | CZ03161-02 | ND |
| 2016-05-12 | CZ03161-03 | ND |
| 2016-05-12 | CZ03161-08 | ND |
| 2016-05-12 | CZ03161-09 | ND |
| 2016-05-17 | CZ07295-01 | ND |
| 2016-05-17 | CZ07298-01 | 1.40 ppm |
| 2016-05-17 | CZ07298-02 | ND |
| 2016-05-18 | CZ07337-01 | ND |
| 2016-05-18 | CZ07337-02 | ND |
| 2016-05-18 | CZ07337-03 | ND |
| 2016-05-19 | CZ07379-01 | ND |
| 2016-05-19 | CZ07379-02 | ND |
| 2016-05-19 | CZ07381-01 | ND |
| 2016-05-19 | CZ07382-01 | ND |
| 2016-05-24 | CZ07549-01 | ND |
| 2016-06-09 | CZ08869-01 | ND |
| 2016-06-09 | CZ08869-02 | ND |
| 2016-06-14 | CZ09073-01 | ND |
| 2016-07-13 | CZ08318-01 | ND |
| 2016-07-13 | CZ08318-04 | ND |
| 2016-07-14 | CZ10473-01 | ND |
| 2016-08-10 | CZ11900-01 | ND |
| 2016-08-31 | CZ08320-01 | ND |
| 2017-01-16 | CZ18659-03 | 1.70 ppm |
| 2017-01-16 | CZ18664-02 | ND |
| 2017-01-16 | CZ18664-03 | ND |
| 2017-01-16 | CZ18665-01 | ND |
| 2017-01-16 | CZ18676-01 | ND |
| 2017-01-16 | CZ18676-02 | ND |
| 2017-01-16 | CZ18676-03 | ND |
| 2017-01-16 | CZ18689-01 | ND |
| 2017-01-16 | CZ18691-01 | ND |
| 2017-01-17 | CA00770-01 | ND |
| 2017-01-17 | CZ18648-01 | 1.90 ppm |
| 2017-01-17 | CZ18654-01 | ND |
| 2017-01-17 | CZ18673-02 | ND |
| 2017-01-17 | CZ18683-01 | 1.10 ppm |
| 2017-01-17 | CA00761-01 | 1.40 ppm |
| 2017-01-17 | CA00762-01 | ND |
| 2017-01-17 | CA00763-01 | ND |
| 2017-01-18 | CZ18673-01 | ND |
| 2017-01-18 | CZ18673-03 | 1.90 ppm |
| 2017-01-18 | CZ18650-01 | 1.50 ppm |
| 2017-01-18 | CA00814-01 | 1.30 ppm |
| 2017-01-18 | CZ18680-01 | ND |
| 2017-01-18 | CZ18680-02 | ND |
| 2017-01-19 | CZ18652-01 | ND |
| 2017-01-19 | CZ18656-01 | ND |
| 2017-01-19 | CZ18656-02 | ND |
| 2017-01-19 | CZ18661-01 | ND |
| 2017-01-19 | CZ18674-01 | ND |
| 2017-01-19 | CZ18701-01 | ND |
| 2017-01-19 | CZ18701-02 | 1.30 ppm |
| 2017-01-19 | CZ18709-01 | ND |
| 2017-01-19 | CZ18709-02 | ND |
| 2017-01-19 | CZ18709-03 | 1.40 ppm |
| 2017-01-19 | CZ18709-04 | ND |
| 2017-01-19 | CZ18646-01 | ND |
| 2017-01-19 | CZ18692-01 | 2.30 ppm |
| 2017-01-19 | CZ18695-01 | ND |
| 2017-01-19 | CZ18695-02 | ND |
| 2017-01-19 | CZ18703-01 | 2.40 ppm |
| 2017-01-19 | CZ18707-01 | ND |
| 2017-01-19 | CZ18711-01 | ND |
| 2017-01-19 | CZ18714-01 | ND |
| 2017-01-23 | CA01050-01 | 1.90 ppm |
| 2017-01-23 | CA01050-02 | ND |
| 2017-01-23 | CZ18658-01 | 1.70 ppm |
| 2017-01-23 | CZ18666-01 | ND |
| 2017-01-23 | CZ18685-01 | 1.40 ppm |
| 2017-01-23 | CZ18686-01 | 4.30 ppm |
| 2017-01-24 | CA01087-01 | ND |
| 2017-01-24 | CZ18687-01 | 1.60 ppm |
| 2017-02-01 | CZ18699-01 | ND |
| 2017-02-02 | CA01573-01 | ND |
| 2017-03-06 | CZ18669-01 | ND |
| 2017-03-29 | CA04943-01 | ND |
| 2017-03-29 | CZ18660-01 | 1.40 ppm |
| 2017-03-29 | CZ18693-01 | ND |
| 2017-03-30 | CA05011-01 | 1.70 ppm |
| 2017-04-05 | CA05276-01 | ND |
| 2017-04-17 | CA03188-01 | ND |
| 2017-04-17 | CA02836-01 | ND |
| 2017-04-19 | CA02854-01 | ND |
| 2017-04-24 | CA02856-01 | ND |
| 2017-05-08 | CA02823-03 | ND |
| 2017-05-08 | CA02843-03 | ND |
| 2017-05-08 | CA02843-08 | 7.10 ppm |
| 2017-05-09 | CA07111-01 | ND |
| 2017-05-09 | CA07111-02 | ND |
| 2017-05-09 | CA07111-03 | ND |
| 2017-05-09 | CA07111-04 | ND |
| 2017-05-10 | CA02831-02 | ND |
| 2017-05-10 | CA02820-01 | ND |
| 2017-05-10 | CA02820-02 | 1.000 ppm |
| 2017-05-10 | CA02831-01 | ND |
| 2017-05-11 | CA02811-01 | ND |
| 2017-05-11 | CA02816-01 | ND |
| 2017-05-11 | CA02818-02 | ND |
| 2017-05-15 | CA07419-01 | ND |
| 2017-05-16 | CA02822-02 | ND |
| 2017-05-16 | CA07439-01 | ND |
| 2017-05-16 | CA07439-02 | ND |
| 2017-05-16 | CA07439-03 | ND |
| 2017-05-16 | CA07439-04 | ND |
| 2017-05-16 | CA07439-05 | ND |
| 2017-05-17 | CA07612-01 | ND |
| 2017-05-17 | CA02838-01 | ND |
| 2017-05-17 | CA02859-01 | ND |
| 2017-05-17 | CA07611-01 | ND |
| 2017-05-17 | CA07613-01 | ND |
| 2017-05-24 | CA08394-01 | ND |
| 2017-05-24 | CA08394-02 | ND |
| 2017-05-25 | CA02848-01 | 2.10 ppm |
| 2017-05-25 | CA02848-02 | ND |
| 2017-06-05 | CA07652-01 | ND |
| 2017-06-05 | CA08765-01 | ND |
| 2017-06-07 | CA08951-01 | ND |
| 2017-06-27 | CA09839-01 | ND |
| 2017-07-17 | CA09254-01 | ND |
| 2017-10-23 | CA13196-01 | ND |
| 2018-01-23 | CA18178-01 | ND |
| 2018-01-24 | CA18102-01 | ND |
| 2018-01-24 | CA18113-01 | ND |
| 2018-01-24 | CA18136-01 | ND |
| 2018-01-24 | CA18136-03 | ND |
| 2018-01-24 | CA18181-01 | 2.10 ppm |
| 2018-01-24 | CA18196-01 | ND |
| 2018-01-25 | CA18185-01 | ND |
| 2018-01-29 | CA18107-01 | ND |
| 2018-01-29 | CA18111-02 | ND |
| 2018-01-29 | CA18111-03 | 1.40 ppm |
| 2018-01-29 | CA18120-01 | ND |
| 2018-01-29 | CA18120-02 | ND |
| 2018-01-29 | CA18120-03 | ND |
| 2018-01-29 | CA18124-01 | ND |
| 2018-01-29 | CA18164-01 | ND |
| 2018-01-29 | CA18164-02 | ND |
| 2018-01-29 | CA18164-03 | ND |
| 2018-01-29 | CA18164-04 | ND |
| 2018-01-29 | CA18177-01 | ND |
| 2018-01-30 | CA18104-01 | 2.00 ppm |
| 2018-01-30 | CA18104-02 | ND |
| 2018-01-30 | CA18104-03 | 1.10 ppm |
| 2018-01-30 | CA18104-04 | ND |
| 2018-01-31 | CA18105-01 | 1.50 ppm |
| 2018-01-31 | CA18106-01 | ND |
| 2018-01-31 | CA18115-01 | ND |
| 2018-01-31 | CA18140-01 | ND |
| 2018-01-31 | CA18166-01 | ND |
| 2018-01-31 | CA18166-02 | ND |
| 2018-01-31 | CA18194-04 | ND |
| 2018-02-01 | CA18108-01 | ND |
| 2018-02-01 | CA18108-02 | ND |
| 2018-02-01 | CA18109-01 | ND |
| 2018-02-01 | CA18125-01 | ND |
| 2018-02-01 | CA18183-01 | ND |
| 2018-02-01 | CA18189-01 | ND |
| 2018-02-01 | CA18189-02 | 1.60 ppm |
| 2018-02-01 | CA18200-01 | ND |
| 2018-02-01 | CB01532-01 | 1.10 ppm |
| 2018-02-01 | CB01532-02 | 1.60 ppm |
| 2018-02-08 | CA18184-04 | ND |
| 2018-02-19 | CB02353-01 | 1.80 ppm |
| 2018-02-20 | CA18128-01 | ND |
| 2018-02-20 | CA18169-01 | 1.30 ppm |
| 2018-02-20 | CA18188-01 | ND |
| 2018-02-20 | CB02383-01 | ND |
| 2018-02-21 | CA18176-01 | 1.50 ppm |
| 2018-02-22 | CA18172-01 | ND |
| 2018-02-22 | CA18174-01 | 3.40 ppm |
| 2018-02-28 | CA18191-01 | 1.50 ppm |
| 2018-02-28 | CA18191-04 | ND |
| 2018-03-01 | CB03195-01 | ND |
| 2018-03-01 | CB03197-01 | ND |
| 2018-03-07 | CB03899-01 | ND |
| 2018-03-08 | CA18192-01 | ND |
| 2018-03-13 | CB04173-01 | ND |
| 2018-03-21 | CB04683-01 | 1.30 ppm |
| 2018-04-02 | CB03259-01 | 2.50 ppm |
| 2018-04-02 | CB03259-02 | ND |
| 2018-04-05 | CB03225-01 | ND |
| 2018-04-05 | CB03225-02 | ND |
| 2018-04-05 | CB03225-03 | ND |
| 2018-04-05 | CB03225-04 | ND |
| 2018-04-05 | CB03225-05 | ND |
| 2018-04-09 | CB03241-01 | ND |
| 2018-04-09 | CB03241-02 | ND |
| 2018-04-09 | CB03241-03 | ND |
| 2018-04-09 | CB03249-01 | ND |
| 2018-04-12 | CB03265-01 | ND |
| 2018-04-12 | CB03627-01 | ND |
| 2018-04-16 | CB03267-01 | ND |
| 2018-04-17 | CB03268-01 | ND |
| 2018-04-18 | CB03230-01 | ND |
| 2018-04-18 | CB03238-02 | ND |
| 2018-04-18 | CB03238-03 | ND |
| 2018-04-18 | CB03238-04 | ND |
| 2018-04-18 | CB03248-01 | ND |
| 2018-04-18 | CB03248-02 | ND |
| 2018-04-19 | CB03255-02 | ND |
| 2018-04-19 | CB03255-03 | ND |
| 2018-04-19 | CB03255-04 | ND |
| 2018-04-19 | CB03255-05 | ND |
| 2018-04-19 | CB03255-06 | ND |
| 2018-04-19 | CB03255-07 | ND |
| 2018-04-19 | CB03255-10 | ND |
| 2018-05-02 | CB06545-01 | ND |
| 2018-05-08 | CB03252-01 | ND |
| 2018-05-09 | CB03235-01 | ND |
| 2018-05-09 | CB03235-02 | ND |
| 2018-05-09 | CB03237-01 | ND |
| 2018-05-09 | CB03237-02 | ND |
| 2018-05-09 | CB06990-01 | ND |
| 2018-05-10 | CB07096-01 | ND |
| 2018-05-10 | CB07096-02 | ND |
| 2018-05-10 | CB07096-03 | ND |
| 2018-05-10 | CB07096-04 | ND |
| 2018-07-19 | CB08109-01 | ND |
| 2018-07-26 | CB08104-01 | ND |
| 2018-07-26 | CB08104-03 | ND |
| 2018-07-26 | CB08104-04 | ND |
| 2018-08-02 | CB11706-01 | ND |
| 2018-09-25 | CB14499-01 | ND |
| 2019-01-14 | CB18601-01 | 1.90 ppm |
| 2019-01-14 | CB18601-03 | 1.20 ppm |
| 2019-01-14 | CB18613-01 | 1.50 ppm |
| 2019-01-14 | CB18613-02 | ND |
| 2019-01-14 | CB18613-03 | 1.90 ppm |
| 2019-01-14 | CB18623-02 | ND |
| 2019-01-14 | CB18623-03 | ND |
| 2019-01-14 | CB18652-01 | ND |
| 2019-01-15 | CB18634-01 | ND |
| 2019-01-15 | CB18634-02 | ND |
| 2019-01-15 | CB18634-03 | 1.80 ppm |
| 2019-01-16 | CB18617-01 | 1.10 ppm |
| 2019-01-16 | CB18653-01 | 2.60 ppm |
| 2019-01-16 | CB18672-01 | ND |
| 2019-01-17 | CB18663-01 | ND |
| 2019-01-17 | CB18675-01 | ND |
| 2019-01-22 | CC01128-01 | 1.70 ppm |
| 2019-01-23 | CB18600-01 | ND |
| 2019-01-23 | CB18604-01 | 1.50 ppm |
| 2019-01-23 | CB18606-01 | ND |
| 2019-01-23 | CB18665-03 | ND |
| 2019-01-29 | CB18629-01 | ND |
| 2019-01-29 | CC01412-01 | ND |
| 2019-01-30 | CB18626-01 | ND |
| 2019-01-30 | CB18655-02 | ND |
| 2019-01-30 | CC01417-01 | 2.30 ppm |
| 2019-01-30 | CC01417-02 | ND |
| 2019-01-31 | CB18610-01 | 2.00 ppm |
| 2019-01-31 | CB18610-02 | ND |
| 2019-01-31 | CB18627-01 | ND |
| 2019-01-31 | CB18654-01 | ND |
| 2019-01-31 | CB18669-01 | ND |
| 2019-01-31 | CC01647-01 | ND |
| 2019-01-31 | CC01647-02 | ND |
| 2019-02-06 | CB18619-01 | ND |
| 2019-02-06 | CB18642-01 | ND |
| 2019-02-06 | CB18642-02 | ND |
| 2019-02-07 | CB18635-01 | ND |
| 2019-02-07 | CB18670-01 | ND |
| 2019-02-07 | CB18670-04 | ND |
| 2019-02-11 | CB18646-01 | 1.60 ppm |
| 2019-02-11 | CB18647-01 | 4.90 ppm |
| 2019-02-11 | CB18649-01 | 2.40 ppm |
| 2019-02-14 | CC02433-01 | 1.60 ppm |
| 2019-02-19 | CB18662-01 | ND |
| 2019-02-21 | CB18637-01 | ND |
| 2019-02-21 | CB18637-02 | ND |
| 2019-02-21 | CB18637-03 | ND |
| 2019-02-21 | CB18643-01 | 1.40 ppm |
| 2019-02-28 | CB18608-01 | ND |
| 2019-02-28 | CC03314-01 | 3.50 ppm |
| 2019-03-12 | CC03910-01 | ND |
| 2019-03-12 | CC03913-01 | ND |
| 2019-03-14 | CC04513-01 | 1.70 ppm |
| 2019-03-18 | CC04645-01 | 1.90 ppm |
| 2019-03-26 | CC05002-01 | ND |
| 2019-03-27 | CB18650-01 | ND |
| 2019-04-15 | CC04039-01 | ND |
| 2019-04-15 | CC04061-01 | ND |
| 2019-04-15 | CC04427-01 | ND |
| 2019-04-17 | CC04015-01 | ND |
| 2019-04-25 | CC06329-01 | ND |
| 2019-05-02 | CC04017-01 | ND |
| 2019-05-02 | CC04017-02 | ND |
| 2019-05-02 | CC04055-01 | 1.000 ppm |
| 2019-05-02 | CC04055-02 | ND |
| 2019-05-07 | CC04020-01 | ND |
| 2019-05-07 | CC04020-02 | 1.000 ppm |
| 2019-05-07 | CC04025-01 | ND |
| 2019-05-07 | CC04025-02 | ND |
| 2019-05-07 | CC04025-03 | ND |
| 2019-05-07 | CC04034-01 | ND |
| 2019-05-07 | CC04034-02 | ND |
| 2019-05-07 | CC04042-01 | ND |
| 2019-05-08 | CC04007-01 | ND |
| 2019-05-08 | CC04007-02 | ND |
| 2019-05-08 | CC04007-03 | ND |
| 2019-05-08 | CC04007-04 | ND |
| 2019-05-08 | CC04007-05 | ND |
| 2019-05-08 | CC04023-01 | ND |
| 2019-05-08 | CC04023-02 | ND |
| 2019-05-08 | CC04023-03 | ND |
| 2019-05-08 | CC04023-04 | ND |
| 2019-05-09 | CC04049-01 | ND |
| 2019-05-09 | CC04049-02 | ND |
| 2019-05-09 | CC04049-03 | ND |
| 2019-05-09 | CC04049-04 | ND |
| 2019-05-09 | CC04049-05 | ND |
| 2019-05-09 | CC04049-06 | 1.60 ppm |
| 2019-05-09 | CC04049-07 | ND |
| 2019-05-09 | CC04049-08 | ND |
| 2019-05-09 | CC04049-09 | ND |
| 2019-05-09 | CC04049-10 | ND |
| 2019-05-09 | CC04049-11 | ND |
| 2019-05-14 | CC04059-01 | ND |
| 2019-06-17 | CC04058-01 | ND |
| 2019-07-25 | CC10505-01 | ND |
| 2019-07-25 | CC10505-02 | ND |
| 2019-07-25 | CC10505-03 | ND |
| 2019-07-25 | CC10505-04 | ND |
| 2019-07-25 | CC10507-01 | ND |
| 2019-08-15 | CC10506-01 | ND |