The projects have been collectively awarded $36 million of government funding.
"From the high-country slopes in Canterbury to sensitive wetlands in the Nelson region, rivers in Northland, Taranaki, Gisborne, Hawke's Bay and Otago - this funding will help our freshwater systems right across the country," Parker said.
"The funding will support councils and landowners to implement the new freshwater regulations and give effect to Te Mana o Te Wai by supporting stock exclusion, fish passage remediation, the development and implementation of freshwater farm plans and sediment control activities like riparian planting," he said.
Across the 19 projects, up to 413 full-time equivalent (FTE) jobs are expected to be created over the next five years.
The funding comes from the Freshwater Improvement fund, which is part of the government's $1.245 billion Jobs for Nature package that aims to create significant environmental benefits and employ thousands in our regions to help accelerate the recovery from the impact of Covid-19.
"With over 100 other Jobs for Nature funded projects already announced, and more than 800 jobs created so far, this programme is having a swift and powerful impact on our regions and the environment. The projects announced today will build on the great work already happening across New Zealand."
Funding deeds will be negotiated with the successful recipients following Saturday's announcement, with boots on the ground expected in the second quarter of 2021.