The Role of Groundwater Sampling and Well Surveying | Corona, CA

Environmental surveys play a crucial role in safeguarding our natural resources, particularly when it comes to monitoring groundwater quality and flow. Groundwater sampling and well surveying are integral components of these surveys, serving distinct yet complementary purposes in environmental assessment and management.

The primary objective of groundwater sampling is to gather current data on the quality of groundwater within a specific site. This process involves collecting water samples from monitoring wells, piezometers, and other relevant locations. The collected data provides insights into the presence of contaminants and helps in evaluating the overall health of the groundwater system.

On the other hand, well surveying focuses on obtaining updated data on the direction and gradient of groundwater flow. Professional Land Surveyors, licensed in the respective state, are tasked with surveying each groundwater monitoring well, piezometer, and soil boring location within the project site. This meticulous approach ensures accurate measurements and reliable data collection.

One of the key platforms used for managing and disseminating environmental data in California is GeoTracker, the California Water Board’s GIS data system. GeoTracker serves as a comprehensive repository for records related to sites with potential impacts on water quality, with a particular emphasis on groundwater. It contains data for a wide range of projects, including cleanup sites such as Leaking Underground Storage Tank (LUST) Sites and Department of Defense Sites, as well as permitted facilities like Irrigated Lands and Oil and Gas production sites.

Data collected from groundwater sampling and well surveying activities are uploaded to GeoTracker in accordance with the State Water Quality Control Board’s guidelines. This typically includes x, y, and z values in GeoTracker-approved data set files. Vertical elevations are surveyed at multiple points, including the top of monitoring well vaults and the ground surface, with precision up to the nearest hundredth of a foot referenced to NAVD 88 datum. Horizontal locations are surveyed to the nearest tenth of a foot referenced to NAD 83 datum.

In addition to collecting the raw data, our team of professionals compile comprehensive site plans are generated as part of the final report, depicting key features such as monitoring wells and soil borings. These plans provide valuable visual representations of the surveyed area and aid in the interpretation of collected data.

Goundwater sampling and well surveying are essential components of environmental surveys, providing critical insights into groundwater quality and flow dynamics. By adhering to rigorous surveying standards and leveraging advanced data management systems like GeoTracker, our team does its part to understand, monitor and manage water resources for future generations.

To learn more, please contact us at (800) CALVADA or visit

Calvada proudly serves Corona and all surrounding areas.

What Is Mapping and Why Is It Important? | Corona, CA

Mapping is an essential component for anyone seeking to develop a given site, as local agencies need that information prior to approving a project. Whether you are a private property owner seeking to build, selling a portion of your land, or are a developer creating a large subdivision, mapping services will be necessary to continue the process.

The experienced professionals at Calvada offer a variety of mapping services for any need, for projects of any size and scope. We provide you with the information you need before, during and after development: existing lot lines, merging/splitting parcels of land, creating a number of lots, and many other survey-related adjustments you may require.

To learn more about our mapping services, please contact us at (800) CALVADA or visit

Calvada proudly serves Corona and most of the West Coast.

What is a Telecommunication Survey? | Corona, CA

Telecommunication surveys are namely conducted for the telecommunications industry. They are conducted to understand the existing conditions of a particular space and locate telecommunications structures and equipment.

These particular surveys are conducted so interested parties such as architects, engineers, and telecommunication providers can create a site plan. Site plans inform such parties of particular points of interest they should account for the plan, and to ensure they acquire the certifications necessary to properly proceed with their intended use of the space.

This data is paramount, as it informs how best to orient, build or modify telecommunication structures and utilities. How our team of experienced professionals conducts a Telecommunications Survey is not dissimilar to a topographic survey, commonly employed by landowners seeking to construct or modify their space for residential or commercial use. Our surveyors begin with a visit to the site, where they establish horizontal and vertical controls that serve as the basis of future work.

They locate surface improvements such as buildings, curbs, sidewalks, and gutters, to name a few. Once this data has been collected, our office staff utilizes this information to provide the client with a high-quality AutoCAD Civil 3D image of the data. It serves as a precise visual of the site’s existing conditions so their team can efficiently navigate the next steps of their intended use of the space.

To learn more about topographic surveys, please contact us at (800) CALVADA or

Calvada proudly serves Corona and all surrounding areas.

How Weather Can Affect Your Land Survey | Corona, CA

When it comes to land surveying, there are plenty of obstacles that can come into play during a typical day at work. One of these obstacles is the weather, especially during the winter season. It may seem like living in Southern California, an area that is 95% sunny day, wouldn’t be an issue, but you would be surprised – we have our own set of weather issues.

In the spring season, rain can always be an issue, and even though it isn’t a common occurrence, the sporadic nature of our rain season can make things tricky. Dressing appropriately will not only keep you dry, but also safe. And the same goes for your equipment. Because surveying is an outdoor job, everything and everyone needs to be protected. After the rain comes mud, so additional caution needs to be paid in work zones.

If you work in the winter season, there is a chance you may be working in snowy conditions. The problem is that it is likely covering up what you need to be surveying, like dangerous obstacles and essential sights such as property corners, flagging, and downed fences that you need to see to be able to complete your work.

Some may think the job is easier in this sunny climate, but the sun can often play tricks by creating shadows where you don’t want them. And let’s face it – the Santa Ana winds are a strong force to reckon with. Not only is it tough to stand in one place, but a workstation can easily become unlevel. Surveying is all about working around Mother Nature’s plans.

Remember: We may live in Southern California, the land of sunny days, but it can become quite extreme. You and your equipment have their limits.

To find out more about how weather can affect land surveys, please contact us at (800) CALVADA or visit

Calvada proudly serves Corona and all surrounding areas.

The Environmental Industry Needs Land Survey Services | Corona, CA

In this day and age, it is important that we do everything we can to create a more sustainable way of living on this planet. This being said, when designing or constructing a building, a bridge, a water pipeline or any infrastructure asset, it is important to get a land survey to find out if what you’d like to develop is actually feasible.

A land survey is generally required when designing or constructing structures such as buildings, roads, parking lots, utility corridors, or athletic fields, etc. Why? Because these surveys can give detailed account of horizontal and vertical dimensions and elevations of the structure in question, and also show above ground attributes such as utilities, access roads, parking spaces, fences, etc. More specifically, land survey deliverables for the Environmental Industry include:

  • Geotracker surveys on newly installed groundwater monitoring wells
  • Earth quantity calculations used to determine the amount of contaminated dirt to be removed
  • Topographic surveys for any environmental infrastructure design project
  • Construction staking for any environmental project that is being built from the ground up

To find out more about land surveys, please contact us at (800) CALVADA or visit

Calvada proudly serves Corona and all surrounding areas.