We are a group of professional engineers and environmental professionals. We believe that our success is only as good as our ability to deliver high-value educational content,  and knowledge of a complex natural world. We finance this initiative promoting business opportunity and marketing services. We have benefited from this practice ,and so should YOU!


September 5

Read More

July 29

Read More

July 1

Read More


Keep up with the most interesting topics

funnel software


online marketing

Wordpress hosting


About the author


I'm  DJ

I am a civil and environmental engineer with a masters in water resources engineer. I am the president of Land & Watersheds. I am dedicated to the well-being of young and future generations to come. That is the sole reason that I care so much for the health of our natural environment. I am also an affiliate marketer and blogger and that is the way that we are able to sustain our content.

A portrait of DJ Vagnetti gives Land & Watersheds purpose and goal through the face of the president

Martin Angila author and vice-president of land & watersheds


I'm  Martin

I am an environmental engineer. I am the vice-president of Land & Watersheds. I live for the fate of our children. That is the reason that I thrive for the health of our planet. Earth is what I call home and I try to take good care of it. I am also an author, blogger and affiliate marketer. Our efforts are financed through affiliate commissions. 

Follow us here

I've known Engineer David Vagnetti for eighteen years, since that time he has proven to be a dynamic, proactive, multitasker, loyal and intuitive professional, who will achieve all the goals and objective with great dexterity.

Carlos Cruz

David is an expert, trustworthy and know the business as no-one else. I always receive results higher than expectations. Will hire him again for any project in the future.

Santos E. Santiago

I have worked with David in the past. He is a top notch talented engineer. I would highly recommend him!

Michael Sobel, MCE PE

David is a leader in the engineering field in Puerto Rico. His work in water resources has made him the go-to guy on the island. His firm Engineered Advantage, has had many civil/site and hydrologic projects awarded to them and he has completed them successfully. Keep up the good work David!

Harry O. Ward, PE

David and his partner at Engineered Advantage, Paul, are both exceptional engineers and provide a highly professional consulting service in the civil and structural engineering fields. David's assessment, planning and design for an embankment stabilization system were on point! He made us gain approximately 20% more parking space and an overall 30% more usable lot surface area for future expansions of our clients property. It was a challenge, but David and hes partners at Engineered Advantage tackled it and demonstrated the expertise they have in there professional field, always taking in consideration every aspect and detail we might have asked for. If you ask me, I would "closed eyes" recommend David and hes team for any project you may have in hand, from the simplest to the more challenging ones!

Doel F. Muñiz Rivera, PE

Get Access to Our Newsletter and Never Miss a New Review Article